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ENDOCRINE SYSTEM
CHAPTER 18 - CHABNER LANGUAGE OF MEDICINE
253
Medical
Undergraduate 1
02/17/2013

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Term
pituitary gland
Definition
"master gland" or hypophysis
anterior pituitary (adenohypophysis) secretes the following:
· GH: growth hormone
· PRL: prolactin
· TSH: thyroid stimulating hormone
· ACTH: adrenocorticotropic hormone
· FSH: follicle stimulating hormone
· LH: luteinizing hormone
- MSH: melanocyte stimulating hormone
Term
aden/o
Definition
gland
Term
adren/o, adrenal/o
Definition
adrenal gland
Term
gonad/o
Definition
sex glands (ovaries and testies)
Term
pancreat/o
Definition
pancreas
Term
parathyroid/o
Definition
parathyroid gland
Term
pituitar/o
Definition
pituitary gland; hypoohysis
Term
thyr/o, thyroid/o
Definition
thyroid gland
Term
andr/o
Definition
male
Term
calc/o, calci/o
Definition
calcium
Term
cortic/o
Definition
cortex, outer region
Term
crin/o
Definition
secrete
Term
dips/o
Definition
thirst
Term
estr/o
Definition
female
Term
gluc/o
Definition
sugar
Term
home/o
Definition
sameness
Term
hormon/o
Definition
hormone
Term
kal/i
Definition
potassium
Term
lact/o
Definition
milk
Term
myx/o
Definition
mucus
Term
natr/o
Definition
sodium
Term
phys/o
Definition
growing
Term
somat/o
Definition
body
Term
ster/o
Definition
solid structure
Term
toc/o
Definition
childbirth
Term
toxic/o
Definition
poison
Term
ur/o
Definition
urine
Term
eu-
Definition
good, normal
Term
hyper-
Definition
excessive, above
Term
hypo-
Definition
deficient; below under; less than normal
Term
oxy-
Definition
rapid, sharp, acid
Term
pan-
Definition
all
Term
tetra-
Definition
four
Term
tri-
Definition
three
Term
adrenal cortex
Definition
outer section (cortex) of each adrenal gland; secretes cortisol, aldosterone, and sex hormones
Term
adrenal medulla
Definition
inner section (medulla) of each adrenal gland; secretes epinephrine and norepenephrine
Term
ovaries
Definition
located in the lower abdomen of a female, responsible for egg production and estrogen and progesterone secretion
Term
pancreas
Definition
located behind the stomach. Islet (alpha and beta) Cells (Islet of Langerhans) secrete hormones from the pancreas. The pancreas also contins cells that are exocrine in function. They secrete enzymes, via a duct into the small intestine to aid digestion.
Term
parathyroid gland
Definition
four small glands on the posterior of the thyroid gland. Some people may have three or five parathyroid glands
Term
pituitary gland (hypophysis)
Definition
located on the base of the brain in the sella turcica; composed of an anterior lobe (adenohypophysis) and a posterior lobe (neurohypophysis. It weighs only 1/16 of an ounce and is half inch across
Term
testes
Definition
two glands enclosed in the scrotal sac of a male; responsible for sperm production and testosterone secretion
Term
thyroid gland
Definition
located in the neck on either side of the trachea; secretes thyroxine
Term
adrenaline (epinephrine)
Definition
secreted by the adrenal medulla; increases heart rate and blood pressure
Term
adenocorticotropic hormone (ACTH)
Definition
secreted by the anterior lobe of the pituitary gland (adenohypophysis); also called adrenocorticotropin. ACTH stimulates the adrenal cortex
Term
aldosterone
Definition
secreted by the adrenal cortex; increases salt (sodium) reabsorption
Term
androgen
Definition
male hormone secreted by the testes and to a lesser extend by the adrenal cortex, testosterone is an example
Term
antidiuretic hormone (adh)
Definition
secreted by the posterior lobe of the pituitary gland (neurohypophysis). ADH (vasopressin) increases the reabsorption of water by the kidney
Term
calcitonin
Definition
secreted by the thyroid gland; decreases blood calcium levels
Term
cortisol
Definition
secreted by the adrenal cortex; increases blood sugar. It is secreted in times of stress and has an anti-inflammatory effect
Term
epinephrine (adrenaline)
Definition
secreted by the adrenal medulla; increase heart rate and blood pressure and dialates airways (sympathomimetic). It's part of the body's fight or flight reaction
Term
estradiol
Definition
estrogen secreted from ovaries
Term
estrogen
Definition
female hormone secreted by the ovaries and to a lesser extend by the adrenal cortex. example estradiol and estrone
Term
folice stimulating hormone (FSH)
Definition
secreted by the anterior lobe of the pituitary gland (adrenohypophysis) FSH stimulates hormone secretion and egg production by the ovaries and sperm production by the testies
Term
glycagon
Definition
secreted by alpha islet cells of the pancreas also increase blood sugar by conversion of glycogen (starch) to glucose
Term
growth hormone; somatotropin
Definition
secreted by the anterior lobe of the pituitary gland (adrenohypophysis) stimulates growth of bones and soft tissue
Term
insulin
Definition
secreted by beta islet cells (latin insula means island) of the pancreas. insulin helps glucose (sugar) to pass into cells and it promotes the conversion of glucose to glycogen
Term
luteinizing hormone (LH)
Definition
secreted by anterior love of pituitary gland (adrenohypophysis) stimulates ovulation in females and testosterone secretion in males
Term
norepinephrine
Definition
secreted by the adrenal medulla increases heartrate and blood pressure (sympathomimetic) nor- in chemistry means a parentcompound from which another is derived
Term
oxytocin (OT)
Definition
secreted by posterior lobe of the pituitary gland (neurohypophysis) stimulates contraction of the uterus during labor and childbirth
Term
parathormone (PTH)
Definition
secreted by the parathyroid glands; increases blood calcium
Term
progesterone
Definition
secreted by the ovaries; prepares the uterus for pregnancy
Term
prolactin (PRL)
Definition
secreted by the anterior lobe of the pituitary gland (adrenohypophysis); promotes milk secretion
Term
somatotropin (STH)
Definition
secreted by anterior lobe of the pituitary gland (adrenohypophysis); growth hormone
Term
testosterone
Definition
male hormone secreted by the testis;
Term
thyroid-stimulating hormone (TSH)
thyrotropin
Definition
secreted by anterior lobe of the pituitary gland (adrenohypophysis); TSH acts on the thyroid gland to promote its functioning; note TSH is not secreted by the thyroid gland
Term
thyroxine (T4)
Definition
secreted by the thyroid gland also called tetraiodothyronine; t4 increases metabolism in cells
Term
triiodothyronine (T3)
Definition
secreted by the thyroid gland; T3 increaes metabolism in cells;
Term
vasopressin
Definition
secreted by the posterior lobe of the pituitary gland (neurohypophysis) antidiuretic hormone (ADH)
Term
catecholamines
Definition
hormones derived from a aminoacid and secreted by the adrenal medulla; epinephrine is a catecholamine
Term
corticosteriods
Definition
hormones (steriods) produced by the adrenal cortex examples are cortisole (raises sugar levels), aldosterone (raises salt reabsorption by the kidneys) and androgens and estrogens (sex hormones)
Term
electrolyte
Definition
mineral salt found in the blood and tissues and necessary for proper function of cells; potassium, sodium and calcium are examples
Term
glucocorticoid
Definition
steroid hormone secreted by the adrenal cortex; regulates glucose, fat and protein metabolism; cortisol raises blood sugar and is part of the stress response
Term
homeostasis
Definition
tendency of an organism to maintain a constant internal environment
Term
hormone
Definition
substance by an endocrine gland that travels trough the blood to a distant organ or gland where it influences the structure or function of that organ or gland
Term
hypothalamus
Definition
region of the brain lying below the thalamus and above the pituitary gland; it secretes releasing factors and hormones that affect the pituitary gland
Term
mineralocorticoid
Definition
steroid hormone secreted by the adrenal cortex to regulate mineral salts (electrolytes) and water balance in the body. aldosterone is an example
Term
receptor
Definition
cellular or nuclear protein that binds to a hormone so that a response that be elicited
Term
sella turcica
Definition
cavity in the skull that contains the pituitary gland
Term
sex hormones
Definition
steriods (androgens and estrogens) produced by the adrenal cortex to influence male and female sexual characteristics
Term
steriod
Definition
complex substance related to fats (derived from sterol, such as cholesterol) and of which many hormones are made; examples of steriods are estrogens, androgens, glucocortecoids and mineralocorticoids, ster/o means solid; -ol means oil
Term
sympathomimetic
Definition
pertaning to mimicking or copying the effect of the sympathetic nervous system, adrenal is a sympathomimetic hormone (it raises blood pressure and heart rate and dilates airways)
Term
target tissue
Definition
cells or an organ that are affected or stimulated by specific hormones
Term
Adenectomy
Definition
Removal of a gland.
Term
Adenohypophysis
Definition
Anterior lobe of the pituitary gland.
Term
Adrenal cortex
Definition
Outer section of each adrenal gland
Term
Adrenalectomy
Definition
Removal of an adrenal gland
Term
Adrenaline
Definition
Hormone secreted by the adrenal medulla; epinephrine
Term
Adrenal medulla
Definition
Inner section of each adrenal gland.
Term
Adrenocorticotropic hormone
Definition
Secretion from the anterior lobe of the pituitary gland; stimulates the adrenal cortex; ACTH
Term
Adrenocorticotropin
Definition
Adrenocorticotropic hormone; ACTH.
Term
Adrenopathy
Definition
Disease of the adrenal glands
Term
Aldosterone
Definition
Hormone secreted by the adrenal cortex; regulates salt and water balance.
Term
Androgen
Definition
Male hormone responsible for developing and maintaining male secondary sex characteristics
Term
Antidiuretic hormone
Definition
Secreted by the posterior lobe of the pituitary gland; promotes water reabsorption by the kidney
Term
Calcitonin
Definition
Hormone secreted by the thyroid gland; lowers calcium levels in the blood.
Term
Catecholamines
Definition
Hormones secreted by the adrenal medulla; epinephrine (adrenaline) is an example.
Term
Corticosteroids
Definition
Hormones secreted by the adrenal cortex; cortisol and aldosterone are examples.
Term
Cortisol
Definition
Hormone secreted by the adrenal cortex; regulates the use of sugars, fats, and proteins in cells. Cortisol raises blood sugar.
Term
Electrolyte
Definition
Substance that, in solution, carries an electric charge; examples are sodium (Na+), potassium (K+), calcium (Ca++) and chloride (Cl-).
Term
Endocrinologist
Definition
Medical specialist in the diagnosis and treatment of endocrine gland disorders.
Term
Epinephrine
Definition
Hormone secreted by the adrenal medulla; increases heart rate and blood pressure.
Term
Estradiol
Definition
Estrogen secreted by the ovaries
Term
Estrogen
Definition
Female hormone secreted by the ovaries and to a lesser extent by the adrenal cortex in both males and females
Term
Estrogenic
Definition
Pertaining to the producing of female characteristics or having the same effect as estrogen.
Term
Euthyroid
Definition
Normal functioning of the thyroid gland.
Term
Follicle-stimulating hormone
Definition
Secretion of the anterior lobe of the pituitary gland; stimulates ovarian follicles to produce egg cells.
Term
Glucagon
Definition
Hormone secreted by the pancreas (alpha islet cells); increases blood glucose (sugar) by conversion of glycogen to glucose.
Term
Glucocorticoid
Definition
Steroid hormone secreted by the adrenal cortex; cortisol is an example. It raises blood sugar.
Term
Glycemic
Definition
Pertaining to blood sugar
Term
Glycogen
Definition
Animal starch; glycogen is broken down (glycogenolysis) to produce sugar (glucose).
Term
Glycosuria
Definition
Sugar in urine.
Term
Gonadotropin
Definition
Hormone secreted by the anterior lobe of the pituitary gland and acting on the ovaries or testes.
Term
Growth hormone
Definition
Secreted by the anterior lobe of the pituitary gland; somatotropin. It stimulates the growth of bones and soft tissues
Term
Homeostasis
Definition
Tendency in an organism to return to a state of constancy and stability.
Term
Hormonal
Definition
Pertaining to a hormone
Term
Hormone
Definition
Chemical secreted by an endocrine gland
Term
Hypercalcemia
Definition
High levels of calcium in the bloodstream; often due to hyperparathyroidism.
Term
Hypercalciuria
Definition
High levels of calcium in urine
Term
Hyperglycemia
Definition
High levels of sugar in the blood
Term
Hypocalcemia
Definition
Low levels of calcium in the blood
Term
Hypoglycemia
Definition
Low levels of sugar in the blood
Term
Hypogonadism
Definition
Deficient functioning of the gonads (ovaries or testes).
Term
Hypoinsulinism
Definition
Deficient production of insulin (pancreatic hormone).
Term
Hypokalemia
Definition
Low levels of potassium in the blood
Term
Hyponatremia
Definition
Low levels of sodium in the blood
Term
Hypophysectomy
Definition
Removal of the pituitary gland.
Term
Hypophysis
Definition
Pituitary gland
Term
Hypopituitarism
Definition
Deficient secretion of hormones from the pituitary gland
Term
Hypothalamus
Definition
Region of the brain lying below the thalamus, but above the pituitary gland. It stimulates the pituitary gland to secrete and release hormones.
Term
Insulin
Definition
Hormone secreted by the beta islet cells of the pancreas. Insulin helps sugar leave the blood and enter cells.
Term
Luteinizing hormone
Definition
Secreted by the anterior lobe of the pituitary gland; stimulates the ovaries to release eggs (ovulation) and produce hormones.
Term
Mineralocorticoid
Definition
Hormone secreted by the adrenal cortex; regulates salts (electrolytes) and water balance in the body. Aldosterone is an example.
Term
Neurohypophysis
Definition
Posterior lobe of the pituitary gland; secretes oxytocin and vasopressin.
Term
Norepinephrine
Definition
Hormone secreted by the adrenal medulla; increases blood pressure as part of the fight or flight reaction. It is a sympathomimetic
Term
Oxytocin
Definition
Hormone secreted by the posterior lobe of the pituitary gland; stimulates contractions of the uterus during childbirth.
Term
Pancreas
Definition
Endocrine (islet cells) and exocrine (enzyme producing cells) gland behind the stomach
Term
Pancreatectomy
Definition
Excision of the pancreas
Term
Parathormone
Definition
Secreted by the parathyroid glands; regulates calcium in the blood.
Term
Parathyroidectomy
Definition
Removal of parathyroid glands
Term
Parathyroid glands
Definition
Four small endocrine glands on the posterior side of the thyroid gland.
Term
Pineal gland
Definition
Small endocrine gland in the center of the brain; secretes melatonin which helps to regulate body's biological clock
Term
Pituitary gland
Definition
Endocrine gland at the base of the brain; anterior and posterior lobes secrete hormones
Term
Polydipsia
Definition
Excessive thirst
Term
Progesterone
Definition
Hormone secreted by the ovaries; prepares the uterus for pregnancy.
Term
Prolactin
Definition
Secreted by the anterior lobe of the pituitary gland; promotes milk secretion.
Term
Receptor
Definition
Cellular or nuclear protein that binds to a hormone to elicit a response by the targeted tissue
Term
Sella turcica
Definition
Cavity in the base of the skull; contains the pituitary gland.
Term
Somatotropin
Definition
Hormone secreted by the anterior lobe of the pituitary gland; growth hormone.
Term
Steroid
Definition
Complex substance related to fat (sterols; many hormones are steroids (estrogens, androgens, cortisol, aldosterone).
Term
Sympathomimetic
Definition
Pertaining to mimicking or copying the effect of the sympathetic nervous system; adrenaline and norepinephrine are sympathomimetic hormones.
Term
Target tissue
Definition
Cells of an organ that are affected or stimulated by specific hormones.
Term
Testosterone
Definition
Hormone secreted by the testes
Term
Tetraiodothyronine
Definition
Hormone secreted by the thyroid gland that increases body metabolism; thyroxine (T4).
Term
Thyroid gland
Definition
Endocrine gland in the neck on either side of the trachea
Term
Thyroiditis
Definition
Inflammation of the thyroid gland.
Term
Thyrotropin
Definition
Hormone secreted by the anterior lobe of the pituitary gland; stimulates the thyroid gland to secrete its hormones. Also called thyroid-stimulating hormone or TSH.
Term
Thyroxine
Definition
Hormone secreted by the thyroid gland to increase body metabolism (T4).
Term
Triiodothyronine
Definition
Hormone secreted by the thyroid gland (contains three atoms of iodine); stimulates body metabolism; T3.
Term
Vasopressin
Definition
Hormone secreted by the posterior lobe of the pituitary gland; stimulates the kidneys to reabsorb water. Also called antidiuretic hormone or ADH.
Term
Acromegaly
Definition
Enlargement of extremities due to increased secretion of growth hormone from the anterior pituitary gland
Term
Addison disease
Definition
Hypofunctioning of the adrenal cortex; decreased secretion of aldosterone and cortisol.
Term
Adrenal virilism
Definition
Excessive secretion of adrenal androgens
Term
Cretinism
Definition
Hypothyroidism during infancy and childhood leading to a lack of normal physical and mental growth.
Term
Cushing syndrome
Definition
Group of symptoms produced by excess cortisol from the adrenal cortex; obesity, hyperglycemia, excess fat deposition in the body. High levels of exogenous cortisol (cortisone administration) can produce similar results.
Term
Diabetes insipidus
Definition
Insufficient secretion of antidiuretic hormone (vasopressin); signs are polyuria and polydipsia.
Term
Diabetes mellitus
Definition
Lack of insulin secretion (Type 1) or improper utilization of insulin by cells (Type 2) leading to a chronic disorder of carbohydrate, fat, and protein metabolism in cells.
Term
Dwarfism
Definition
Congenital hyposecretion of growth hormone from the anterior pituitary gland.
Term
Endemic goiter
Definition
Enlargement of the thyroid gland due to lack of iodine in the diet.
Term
Exophthalmometry
Definition
Measurement of eyeball protrusion
Term
Exophthalmos
Definition
Protrusion of the eyeball (proptosis); symptom of hyperthyroidism
Term
Fasting plasma glucose
Definition
Measures circulating glucose level in a patient who has fasted at least 8 hours. This test can diagnose diabetes mellitus.
Term
Gastroparesis
Definition
Loss of motility of the stomach muscles, occurring as a long-term secondary complication of diabetes mellitus.
Term
Gigantism
Definition
Hypersecretion of growth hormone from the anterior pituitary gland before puberty, leading to abnormal overgrowth of body tissues.
Term
Glucose tolerance test
Definition
Measures the glucose levels in a blood sample taken at various intervals from a patient who has previously ingested glucose.
Term
Goiter
Definition
Enlargement of the thyroid gland.
Term
Graves disease
Definition
Hyperfunctioning of the thyroid gland; thyrotoxicosis. This is the most common type of hyperthyroidism.
Term
Hirsutism
Definition
Excessive hair growth.
Term
Hyperinsulinism
Definition
Increased secretion of insulin from the beta islet cells of the pancreas.
Term
Hyperparathyroidism
Definition
Increased secretion of parathormone from the parathyroid glands
Term
Hypoparathyroidism
Definition
Decreased secretion of parathormone from the parathyroid glands.
Term
Hypothyroidism
Definition
Decreased secretion of thyroid hormones from the thyroid gland
Term
Ketoacidosis
Definition
High levels of acids (ketones) in the blood; occurring in diabetes mellitus (type 2) when cells burn high levels of fats (producing ketones) because sugar is not available as fuel.
Term
Myxedema
Definition
Hypofunctioning of the thyroid gland in adults.
Term
Nodular goiter
Definition
Enlargement of the thyroid gland due to growth of nodules (adenomas) on the thyroid gland.
Term
Panhypopituitarism
Definition
Deficiency of all pituitary gland hormones.
Term
Pheochromocytoma
Definition
Tumor of cells of the adrenal medulla; cells stain a dark (phe/o) or dusky color (chrom/o).
Term
Radioactive iodine uptake
Definition
Test to measure the amount of radioactive iodine taken up by the thyroid gland; indicator of thyroid gland function
Term
Syndrome of inappropriate ADH
Definition
Excessive secretion of antidiuretic hormone (ADH, vasopressin) leading to water retention
Term
Tetany
Definition
Constant muscle contractions; associated with hypocalcemia and hypoparathyroidism.
Term
Thyroid carcinoma
Definition
Malignant tumor of the thyroid gland
Term
Thyroid function tests
Definition
Measurement of thyroxine, triiodothyronine, and thyroid-stimulating hormone in the bloodstream.
Term
Thyroid scan
Definition
Administration of a radioactive compound and visualization of the thyroid gland with a scanning device.
Term
Thyrotoxicosis
Definition
Hyperthyroidism (overactivity of the thyroid gland).
Term
adenectomy
Definition
Removal of a gland
Term
adrenopathy
Definition
Disease of adrenal glands
Term
adrenalectomy
Definition
Removal of an adrenal gland
Term
gonadotropin
Definition
Hormone that is secreted from the pituitary gland and acts on the gonads (ovaries and
testes).
Term
hypogonadism
Definition
Condition of decreased function of the gonads, with decreased growth and sexual development.
Term
pancreatectomy
Definition
Removal of the pancreas
Term
parathyroidectomy
Definition
Removal of the parathyroid glands
Term
hypopituitarism
Definition
Condition resulting from decreased secretion by the pituitary gland
Term
thyrotropic hormone
Definition
Hormone secreted by the anterior pituitary gland that acts on the thyroid gland (TSH
or thyroid-stimulating hormone).
Term
thyroiditis
Definition
Inflammation of the thyroid gland.
Term
androgen
Definition
Hormone producing or stimulating male characteristics (e.g., testosterone).
Term
hypercalcemia
Definition
Increased calcium in the blood.
Term
hypercalciuria
Definition
High levels of calcium in urine.
Term
hypocalcemia
Definition
Decreased calcium in the blood
Term
corticosteroid
Definition
Any of the hormones produced by the adrenal cortex
Term
endocrinologist
Definition
Specialist in diagnosis and treatment of endocrine gland disorders
Term
polydipsia
Definition
Condition of excessive thirst
Term
estrogenic
Definition
Pertaining to having properties similar to estrogen (producing estrogen-like effects).
Term
glucagon
Definition
Hormone from the pancreas that causes sugar to be released into the bloodstream
when blood sugar levels are low.
Term
hyperglycemia
Definition
Blood condition of increased sugar
Term
glycemic
Definition
Pertains to sugar in the blood
Term
glycogen
Definition
An animal starch; produced from sugar by the liver.
Term
homeostasis
Definition
State of equilibrium (constancy) of the body’s internal environment
Term
hormonal
Definition
Pertaining to hormones
Term
hypokalemia
Definition
Low levels of potassium in the blood.
Term
prolactin
Definition
Hormone secreted by the anterior pituitary that promotes the growth of breast tissue
and stimulates milk production.
Term
myxedema
Definition
Condition of mucous-like swelling of the face and soft tissues; due to hyposecretion of
the thyroid gland in adults.
Term
hyponatremia
Definition
Blood condition of deficiency of sodium
Term
hypophysectomy
Definition
Removal of the pituitary gland
Term
somatotropin
Definition
Hormone secreted by the anterior pituitary gland; stimulates growth of bones and
tissues (growth hormone).
Term
steroid
Definition
An organic (containing carbon) compound with a ring structure; bile acids, vitamin D,
certain hormones.
Term
oxytocin
Definition
Hormone secreted by the posterior lobe of the pituitary gland; stimulates childbirth.
Term
thyrotoxicosis
Definition
Condition of increased secretion from the thyroid gland with symptoms such as
sweating, rapid pulse, tremors, and exophthalmos
Term
antidiuretic hormone
Definition
Secreted by the posterior lobe of the pituitary gland; causes water to be retained in the
body.
Term
glucagon
Definition
Hormone from the pancreas that “assembles” sugar from starch and increases blood
sugar when it is low.
Term
hypoglycemia
Definition
Low levels of sugar in blood
Term
epinephrine
Definition
Hormone secreted by the adrenal medulla; raises blood pressure
Term
adrenocorticotropin
Definition
Hormone secreted by the anterior lobe of the pituitary gland; stimulates the adrenal cortex to release its hormones.
Term
glycosuria
Definition
Condition of sugar in the urine.
Term
euthyroid
Definition
Normal thyroid function
Term
hyperkalemia
Definition
High levels of potassium in blood
Term
hypoinsulinism
Definition
Low levels of insulin
Term
panhypopituitarism
Definition
Condition of deficient secretion of all hormones from the pituitary gland
Term
tetraiodothyronine (T4)
Definition
Thyroid gland hormone containing 4 atoms of iodine; thyroxine
Term
triiodothyronine (T3)
Definition
Thyroid gland hormone containing 3 atoms of iodine
Term
thyroid gland
Definition
secretes the following:
· T4: tetraiodothyronine
· T3: triiodothyronine
· calcitonin
Term
hyperthyroidism
Definition
overactivity of the thyroid gland; thyrotoxicosis. most common form: graves disease- faster metabolism, racing/ irregularity heartbeat, higher body temperature, diarrhea, hyperactivity, weightloss and protruding eyes due to swelling of eyeballs- treatment w/ anti thyroid drugs
Term
hypothyroidism
Definition
underaftivity of thyroid gland- symptoms: fatigue, muscular and mental sluggishness, weight gain, fkuid retension, slow heart rate, low body temperature and constipation - 2 forms- myxedema and cretinism
Term
myxedema
Definition
hypothyroidism in adulthood- no hormons get produced- resukting in dry, swollen skin bcause of mucus (myx/o) material collecting under skin, atherosclerosis, recovery possible if caught early
Term
cretinism
Definition
occuring in early infancy and childhood- leads to lack of normal physical + mental growth. skeletal growth worse than tissue growth = short fat kid; administration of thyroid hormones may reverse some effects
Term
hyperparathyroidism/ hypercalcemia/ hypercalcuria
Definition
excessive production of parathormone- calcium leaves bones and enters blood stream leading to damage in kidney and heart; developement of osteoporosis; also kidney stones; cause is parathyroid tumor or parathyroid hyperplasisa; fosamax is medicine to treat a pt that can't get surgery
Term
hypoparathyroidism/ hypocalcemia
Definition
deficient production of parathyroid hormone- no calcium gets into blood resulting in muscle weaksness and spasms- treatment- calcium w/ vitamin d
Term
tetany
Definition
constant muscle contractions
Term
adrenal virilism
Definition
excessive secretion of adrenal androgens- adrenal hyperplasia/ adrenal adenomas or carcinomas can cause virilization in adult women. they don't get period, excessive hair on face and body, acne, deepening of voice- treatment-> suppressant of androgen and adrenalectomy
Term
adrenalectomy
Definition
removal of adrenal gland
Term
cushing syndrome
Definition
groupd of signs and symptomes produced by excess cortisol from adrenal cortex; resulting in obesity, moonlike fullness of face, excess depo of fat in back causing a hump, hyperglycemia, hypernatremia, hypokalemia, osteoporosis, virilization and hypertension; cause chronic use of steroids (i.e. young athlets, pt being treated for asthma, kidney and skin conditions) needs to be tappered off, because adrenal cortex and pituitary gland stop making cortisol when it is given manually
Term
addison disease
Definition
hypofunction of adrenal cortex- low levels of aldosterone and cortisol in blood resulting in malaise, fatigue, weakness, muscle atrophy, severe loss of fluids and electrolytes (plus hypoglycemia, low blood pressure)
Term
pheochromocytoma
Definition
benign tumor of adrenal medulla; tumor cells stain dark or dusty (phe/o) color (chrom/o); tumor cells produce extra epinephrine and norepenephrine; signs: hypertension, palpitations, severe headache, sweating, flushing of face, muscle spasms, sugery to remove tumor needed
Term
hyperinsulinism
Definition
excess secretion of insulin causing hypoglycemia- benign/ cancerous tumor of pancreas, overdose of insulin; hypoglycemia takes sugar out of blood causing fainting, convulsions, loss of conciouns.
Term
diabetes mellitus
Definition
lack of insulin secretion or resitance of insulin in promoting sugar, starch and fat metabolism in cells- it prevents sugar from leaving the blood and entering into cells. 2 types of diabetes- type 1 and type 2
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