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Definition
rapid changes and very specific responses to environmental stimuli |
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Definition
their secretions (hormones) to body fluids (bloodstream) |
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Definition
_______ can respond to several hormones at the same time |
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Definition
(water soluble) including epinephrine and nor-epinephrine are amino acid derivatives |
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Definition
(lipid soluble) are amino acid derivatives |
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Definition
are composed by amino acids |
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Definition
is a peptide hormone that composed by amino acids |
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Definition
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Definition
a. Are lipid derivatives
b. Their structures are similar to cholesterol
c. Binds with intracellular receptors (nucleus, mitochondria)
d. Gene transcription occurs when binding to receptors |
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Term
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Definition
1) The hormone works with second messenger is catecholamines. For example: Epinephrine and nor-epinephrine work with second messenger cyclic AMP. |
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Hormones can change cellular activities by changing ___, ___, and _____ of ENZYMES in a cell |
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Definition
quantities, activities, and identities |
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Term
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Definition
links the first messenger (hormones) and second messengers (cyclic AMP, calcium ion) |
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Term
When enzyme adenyl cyclase is activated, _____; when enzyme PDE is activated, ______ |
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Definition
cAMP is formed
cAMP is broken down |
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Term
1) Hormones that control the function of the ANTERIOR pituitary gland (Releasing and Inhibiting hormones RH/IH) are released from the _____. |
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Definition
MEDIAN EMINENCE of the HYPOTHALAMUS |
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Term
1) If median eminence is damaged, no TRH, CRH, GnRH released by the hypothalamus.
a.
b.
c.
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Definition
a. No TRH ] Hypothalamus would no longer be able to control the secretion of thyroid hormones.
b. No CRH ] Hypothalamus would no longer be able to control the secretion of cortisone.
c. No GnRH ] Hypothalamus would no longer be able to control the secretion of sex hormones |
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Term
Hormones that control the function of the POSTERIOR pituitary gland are released from the ____ and _____ |
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Definition
SUPRAOPTIC NUCLEI (ADH)
PARAVENTRICULAR NUCLEI (oxytocin) of the HYPOTHALAMUS
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Term
The main function of ADH (antiuretic hormone) is to ____ |
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Definition
decrease the amount of water loss at the kidneys. This function is to help to retain water in the body |
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Term
1) Anterior pituitary glands releases ____ |
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Definition
7 hormones: TSH, ACTH, FSH, LH, MSH, GH, and PRL (prolactin) |
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Term
Prolactin hormone is responsible for ___ |
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Definition
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Oxytocin hormone is responsible for ___ |
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Definition
milk ejection and promoting uterine contraction |
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Term
1) Growth hormones promotes ____ |
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Definition
bone , muscle growth by increasing the protein uptake by cells, and cause hyperglycemia (diabetic-effect) |
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Excess secretion of GH prior to puberty will cause |
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Definition
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1) Excess secretion of GH after puberty will cause ____ |
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Definition
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Liver cells respond to GH by ____ |
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Definition
releasing somatomedins or IGF (insulin-like growth factors)
a. Example: In epithelia and connective tissue, GH stimulates DIVISIONS of stem cell and DIFFERENTIATION of daughter cells. Somatomedins stimulate the growth of these daughter cells) |
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Term
The anterior hormone that triggers the release of thyroid hormone from the thyroid gland is ____
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Definition
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Term
The anterior hormone that triggers the release of glucocorticoids from the adrenal cortex is |
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Definition
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The anterior hormone that promotes egg and sperm is |
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Definition
FSH. (follicle stimulating hormone) |
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Term
The anterior hormone that triggers the release of female and male sex hormones is |
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Definition
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anterior hormone that stimulates melanocytes to produce pigment melanin is |
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Definition
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Definition
hormone of the C cells of the THYROID gland (located outside the thyroid follicles) that can lower blood calcium (HYPOCALCEMIA) |
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Term
CALCITONIN lowers the Ca2+ concentration in the blood because:
a.
b. |
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Definition
a. Calcitonin inhibits osteoclast activity.
b. Calcitonin stimulates Ca2+ excretion by the kidneys. |
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Term
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Definition
hormone of the chief cells of the PARATHYROID gland that can increase blood calcium (cause HYPERCALCEMIA) |
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Term
1) The reason why PTH may cause hypercalcemia because
a.
b.
c.
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Definition
a. PTH stimulates osteoclast activity and inhibits osteoblast activity
b. PTH stimulates the formation and secretion of calcitriol (vitamin D) at the kidneys
c. PTH increases the reabsorption of calcium at the kidney (less calcium loss in the urine) |
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Term
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Definition
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Term
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Definition
convulsion (hypocalcaemia) |
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Term
GOITER is condition resulting from |
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Definition
too much TSH or lack of iodine in the diet |
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Term
1) Thyroid hormones (T3 and T4)
a. Derive from ____
b. Contain mineral ____
c. Work with ___
d. Are ____-soluble
e. Are in ____
f. Increase ____
g. Have permissive effect on |
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Definition
1) Thyroid hormones (T3 and T4)
a. Derive from amino acid TYROSIN
b. Contain mineral iodine
c. Work with intracellular receptors
d. Are lipid-soluble
e. Are in colloidal state (not readily diffuse out of the thyroid vesicles).
f. Increase BMR (primary role in the maintenance of body temperature).
g. Have permissive effect on epinephrine |
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Term
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Definition
the activation of angiotensin I |
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Term
RENIN is released in response with |
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Definition
a decline in renal blood flow and sympathetic stimulation. |
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Term
Angiotensin I is converted to |
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Definition
angiotensin II by enzyme ACE |
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Term
___ is a powerful vasoconstrictor
It will promote _____ |
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Definition
Angiotensin II is a powerful vasoconstrictor
It will promote high blood pressure |
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Term
If Enzyme ACE is blocked, Angiotensin II will not be produced. Therefore ACE inhibitor drug is useful to treat hypertension |
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Definition
If Enzyme ACE is blocked, Angiotensin II will not be produced. Therefore ACE inhibitor drug is useful to treat hypertension |
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Term
Zona reticularis of the adrenal cortex produces ___
Zona fasciculata of the adrenal cortex produces _____________ [ increase the conversion of lipids to glucose ]
Zona glomerulosa of the adrenal cortex produces ________ |
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Definition
Zona reticularis of the adrenal cortex produces sex hormones
Zona fasciculata of the adrenal cortex produces glucocorticoids (cortisol)
[ increase the conversion of lipids to glucose ]
Zona glomerulosa of the adrenal cortex produces mineralocorticoid (aldosterone) |
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Term
1) CORTISOL:
a. Produced by zona fasciculata of the adrenal cortex
b. Controlled by the ACTH of the pituitary gland
c. Makes the liver produce more glucose and glycogen to release more glucose in the blood and more glycogen in the muscle
d. Broken down lipids (lipolysis) to release more fatty acids in the blood
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Definition
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Term
Low cortisol in the blood due to damage of the zona fasciculata of the adrenal cortex causes a decrease ability to convert lipids to glucose |
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Definition
Low cortisol in the blood due to damage of the zona fasciculata of the adrenal cortex causes a decrease ability to convert lipids to glucose |
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Term
1) Aldosterone:
a. increases___
b. is released by ___
c. is also released by either
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Definition
a. sodium concentration in blood (HYPERNATREMIA)
b. angiotensin II
c. a fall in plasma Na+ or elevated plasma K+ |
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Term
The adrenal medulla produces ___
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Definition
catecholamine (epinephrine and nor-epinephrine) |
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Term
Cortisone (hormone of the adrenal cortex) is synergistic to ___ |
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Definition
growth hormone (hormone of the anterior pituitary gland) |
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Term
1) Glucagon : (a CELL of the pancreas)
a. increases ___
b. It is released in response to __
c. produced from the ___ |
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Definition
a. blood sugar
b. low blood glucose (hypoglycemia)
c. alpha cells of the pancreas
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Term
1) Insulin: (b CELL of the pancreas)
a. Decreases ___
b. It is released in response to __
c. Is required for __ and ___
d. Increases __
e. Produced by ___ |
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Definition
a. blood glucose
b. high blood glucose (hyperglycemia)
c. growth and development
d. amino acid uptake by cells
e. Beta cell of Islet of Langerhans of the pancreas |
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Term
1) Pancreas:
a. Mixed gland (endocrine and exocrine gland)
b. Endocrine portion (insulin &glucagon) occupies 1% volume of the gland. It is located in the islet of Langerhans that produce HORMONES
c. Exocrine portion (digestive enzymes) occupies 99% volume of the pancreas. It produces enzymes for digestion. |
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Definition
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Term
1) ANP (atrial natriuretic hormone):
a. ANP is produced by cardiac muscle cells in the atria of the heart
b. ANP helps in reduce blood volume and blood pressure by promoting sodium loss at the kidneys (more sodium in the urine)
c. ANP is antagonistic with aldosterone and ADH (ANP¹ ADH or Aldosterone) |
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Definition
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Term
Hormones of the kidneys include __, __ and __ |
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Definition
RENIN, EPO and CALCITRIOL |
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Term
Hypothalamus acts as __
. It serves as the link between the __ and the __ |
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Definition
Hypothalamus acts as an endocrine organ. It serves as the link between the endocrine and the nervous system |
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Term
1) Thymosin:
a. Hormone of the ___ produced by the ___
b. Stimulates the __ |
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Definition
a. immune system produced by the thymus
b. Stimulates the production of T cell |
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Term
1) Testosterone:
a. Male sex hormone
b. Produced from the interstitial cell of the testis
c. Is required for growth and development
d. Increases aggressive behavior and sex drive |
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Definition
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Term
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Definition
Any condition that threatens homeostasis is called __ |
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Term
The basic pattern of response that the body produces in response to stress is called ___ |
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Definition
GAS (general adaptation syndrome) |
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Term
The hormone that dominates during the alarm phaseof the GAS is __ |
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Definition
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Term
The hormone that dominates during the resistance phaseof the GAS is |
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Definition
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Term
Alarm phase of the GAS (general adaptation syndrome)
a.
b.
c.
d.
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Definition
a. Increase heart rate and respiration rate
b. Mobilize of energy reserve
c. Increases mental illness
d. Increases blood flow to the skeletal muscles and skin |
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Term
1) 1) Resistance phase
a.
b.
c.
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Definition
a. Occurs few hours after the alarm phase
b. Lipid reserves are mobilized.
c. blood glucose increased |
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Term
The zona reticularis of the adrenal cortex produce __ |
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Definition
androgen (male sex hormone) |
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Term
1) Tumor of the adrenal gland at the reticular reticularis cause __ |
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Definition
abnormal production of estrogen that leads to breast enlargement (GYNECOMASTIA). |
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