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LOM Chapter 18
LOM Chapter 18 Vocab
26
Medical
Undergraduate 1
08/10/2012

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Term
ADRENAL CORTEX
Definition
OUTER SECTION OF EACH ADRENAL GLAND: SECRETES CORTISOL, ALDOSTERONE, AND SEX HORMONES.
Term
ADRENAL MEDULLA
Definition
INNER SECTION OF EACH ADRENAL GLAND: SECRETES EPINEPHERINE AND NOREPINEPHRINE.
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 & BETA) CELLS (ISLETS OF LANGERHANS) SECRETE HORMONES FROM IT.  IT CONTAINS CELLS THAT ARE EXOCRINE IN FUNCTION.  THEY SECRETE ENZYMES, VIA A DUCT INTO THE SMALL INTESTINE TO AID DIGESTION.
Term
PARATHYROID GLANDS
Definition
FOUR SMALL GLANS ON THE POSTERIOR OF THE THYROID GLAND.  SOME PEOPLE MAY HAVE THREE OR FIVE.
Term
PITUITARY GLAND (HYPOPHYSIS)
Definition
LOCATED AT THE BASE OF THE BRAIN IN THE SELLA TURCICA; COMPOSED OF AN ANTERIOR LOBE (ADENOHYPOPHYSIS) AND A POSERIOR LOBE (NEUROHYPOPHYSIS).  IT WEIGHS ONLY 1/16 OF AN OUNCE AND IS A HALF INCH ACROSS.
Term
TESTES
Definition
TWO GLANDS ENCLOSED IN THE SCROTAL SAC OF A MALE; RESPONSIBLE FOR SPERM PRODUCTION AND TESTOSTERONE SECRETION.
Term
HYROID 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

ADRENOCORTICOTROPIC HORMONE

(ACTH)

Definition
SECRETED BY THE ANTERIOR LOBE OF THE PITUITARY GLAND.  IT STIMULATES THE ADRENAL CORTEX.
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; INCREASES HEART RATE AND BLOOD PRESSURE AND DILATES AIRWAYS (SYMPATHOMIMETIC).  IT IS PART OF THE BODY'S "FIGHT OR FLIGHT" REACTION.
Term
ESTROGEN
Definition
FEMALE HORMONE SECRETED BY THE OVARIES AND TO A LESSER EXTENT BY THE ADRENAL CORTEX.
Term
GLUCAGON
Definition
SECRETED BY THE ALPHA ISLET CELLS OF THE PANCREAS;  INCREASES BLOOD SUGAR BY CONVERSION OF GLYCOGEN (STARCH) TO GLUCOSE.
Term

GROWTH HORMONE (GH)

SOMATOTROPIN

Definition
SECRETED BY THE ANTERIOR LOBE OF THE PITUITARY GLAND (ADENOHYPOPHYSIS); STIMULATES GROWTH OF BONES AND SOFT TISSUE
Term
INSULIN
Definition
SECRETED BY THE BETA ISLET OF THE PANCREAS.  IT HELPS GLUCOSE (SUGAR) TO PASS INTO CELLS, AND IT PROMOTES THE CONVERSION OF GLUCOSE TO GLYCOGEN.
Term

LUTEINIZING HORMONE

(LH)

Definition
SECRETED BY THE ANTERIOR LOBE OF THE PITUITARY GLAND (ADENOHYPOPHYSIS); STIMULATES OVULATION IN FEMALES AND TESTOSTERONE SECRETION IN MALES.
Term

OXYTOCIN

(OT)

Definition
SECRETED BY THE POSTERIOR LOBE OF THE PITUITARY GLAND (NEUROHYPOPHYSIS); STIMULATES CONTRACTION OF THE UTERUS DURING LABOR AND CHILBIRTH.
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

SOMATOTROPIN

(STH)

Definition
SECRETED BY THE ANTERIOR LOBE OF THE PITUITARY GLAND (ADENOHYPOPHYSIS); GROWTH HORMONE.
Term
TESTOSTERONE
Definition
MALE HORMONE SECRETED BY THE TESTES.
Term
HOMEOSTASIS
Definition
TENDENCY OF AN ORGANISM TO MAINTAIN A CONSTANT INTERNAL ENVIRONMENT.
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
SELLA TURCICA
Definition
CAVITY IN THE SKULL THAT CONTAINS THE PITUITARY GLAND.
Term
STEROID
Definition
COMPLEX SUBSTANCE RELATED TO FATS (DERIVED FROM A STEROL, SUCH ASCHOLESTEROL), AND OF WHICH MANY HORMONES ARE MADE. 
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