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The Endocrine System
Chapter 9 - (A&P)
53
Anatomy
12th Grade
01/15/2014

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Term
Two main classes of hormones?
Definition
amino acid-based and steroid
Term
prostaglandins
Definition
local hormones made from highly active lipids found in a cell's plasma membrane
Term
tropic hormones
Definition
ACTH, TSH, and the two gonadotropic hormones.
Term
acromegaly
Definition
the growth of facial bones in cases of gigantism once long bone growth has ended.
Term
melatonin
Definition
amine. from pineal gland, regulated by light/dark cycles
Term
oxytocin
Definition
peptide. from pituitary gland, stimulates contractions and milk "letdown" reflex. regulated by hypothalamus
Term
antidiuretic hormone ADH
Definition
peptide. from pituitary gland, promotes retention of water by kidneys. regulated by hypothalamus
Term
growth hormone GH
Definition
protein. from anterior lobe, stimulates growth and metabolism. regulated by inhibiting hormones
Term
prolactin PRL
Definition
protein. from anterior lobe, stimulates milk production. regulated by hypothalamic hormones
Term
FSH
Definition
protein. from anterior lobe, stimulates production of ova and sperm. regulated by hypothalamic hormones
Term
LH
Definition
protein. from anterior lobe, stimulates ovaries and testes. regulated by hypothalamic hormones
Term
TSH
Definition
protein. from anterior lobe, stimulates thyroid gland. regulated by thyroxine in blood
Term
ACTH
Definition
Protein; stimulates adrenal cortex to secrete glucocorticoids. Regulated by hypothalamic hormones
Term
T4 T3
Definition
Amine. Stimulates metabolism, regulated by TSH
Term
Calcitonin
Definition
Peptide. Reduces blood calcium level, regulated by ca level n blood
Term
PTH
Definition
Peptide. Raises blood calcium level, regulated by ca level n blood
Term
Thymosin
Definition
Peptide. "Programs" T cells, regulator unknown
Term
Epinephrine and norepinephrine
Definition
Amines. Increase blood glucose, rate of metabolism, and constricts certain blood vessels. Regulated by nervous system
Term
Glucocorticoids
Definition
Steroids. From adrenal cortex, increase blood glucose. Regulated by ACTH
Term
Mineralocorticoids
Definition
Steroids. From adrenal cortex, promote the reabsorption of NA+ and K+ in kidneys.
Term
Insulin
Definition
Protein. Reduces blood glucose
Term
Glucagon
Definition
Protein. Raises blood glucose
Term
Androgens
Definition
Steroids. Support sperm formation; development &maintenance of male secondary sex characteristics. Regulated by FSH, LH
Term
Estrogens
Definition
Steroids. Stimulate uterine lining growth; development & maintenance of female secondary sex characteristics, regulated by FSH,LH
Term
Progesterone
Definition
Steroid. Promoted growth of uterine lining. Regulated by FSH,LH
Term
Corpus luteum
Definition
Produces estrogen and progesterone
Term
hCG
Definition
Produced by conceptus & fetal part of placenta. Stimulates corpus luteum to continue producing hormones, keeps uterine lining during menses.
Term
PGA PGI
Definition
From fatty acid molecules in membranes of all body cells. Various and local.
Term
Gastrin
Definition
Peptide. Stomach. Stimulated by food. Releases HCl
Term
Intestinal gastrin
Definition
Peptide. Duodenum of small intestine, stimulated by food. Stimulates stomach inhibition of HCl
Term
Secretin
Definition
Peptide. From duodenum. Stimulated by food. Targets pancreas/liver/stomach
Term
Cholecystokinin CCK
Definition
Peptide. Duodenum. Stimulated by food. Stimulates pancreas/gallbladder/duodenal papilla
Term
Erythropoietin
Definition
Glycoproteins. Kidneys. Stimulated by hypoxia. Targets bone marrow production of red blood cells
Term
Active vitamin D3
Definition
Steroid. Kidney. PTH. Stimulates intestine transport of dietary calcium over intestinal cell membranes.
Term
ANP
Definition
Peptide. Heart. Stimulated by stretching of heart. Targets kidney/adrenal cortex.
Term
Diabetes mellitus
Definition
Glucose and water are flushed from the body due to a lack of insulin, leading to dehydration.
Term
Amino acid derivatives
Definition
Epinephrine, Melatonin, thyroxine
Term
amines
Definition
Hormones derived from amino acids are known as _________.
Term
Peptides
Definition
3 classifications of hormones: Amino acid derivatives, _______ or proteins, and lipid derivatives or steroids.
Term
steroid
Definition
Cholesteol is the precursor for all _______ hormones. They are produced ONLY by the adrenal cortex and the gonads.
Term
pituitary gland
Definition
The _______ _______ is attached to the hypothalamus above and consists of an anterior and posterior portion.
Term
inhibiting and releasing hormones
Definition
The release of hormones from the anterior pituitary is controlled by __________ ___ __________ __________ produced by the hypothalamus.
Term
hypophyseal portal system
Definition
The inhibiting and releasing hormones from the hypothalamus are transported to the anterior pituitary by the _________ ___________ _______.
Term
Thyroid releasing hormone
Definition
Thyroid stimulating hormone regulates the activity of the thyroid gland and is controlled by the production of _____ ______ ______ from the hypothalamus.
Term
Adrenal Cortex
Definition
The ______ _____ is the part of the adrenal gland that secretes steroids.
Term
Adrenal medulla
Definition
The ______ ______ is the part of the adrenal gland that secretes catecholamines.
Term
Mineralocorticoids
Definition
The outer zone of the adrenal cortex secretes __________.
Term
Glucocorticoids
Definition
The middle zone of the adrenal cortex secretes _______.
Term
Cortisol
Definition
________ helps resist stress. It's metabolic effects:
1. Decrease in protein synthesis
2. Promotion of breakdown of fat
3. Stimulates liver to form glucose from non-carbs
Term
Pineal
Definition
The ______ gland in the brain secretes melatonin.
Term
Stress response
Definition
The ____ _____ is controlled by the hypothalamus. 4 basic aspects:
1. sympathetic activation
2. Increased secretion of adrenal medullary hormones
3. release of cortisol from the adrenal cortex
4. Release of ADH from the posterior pituitary
Term
addison disease
Definition
hypofunctioning of the adrenal cortex
Term
crushing syndrome
Definition
increases cortisol levels would be found in patients, caused by an adenoma in the adrenal cortex
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