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Hormone Functions
Functions of the Endocrine Hormones
46
Physiology
Professional
02/05/2013

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Term
TRH
Definition
Thyrotropin-releasing hormone
Stimulates the release of TSH(Thyroid-stimulating hormone) in the thyrotrophs of the adenohypophysis in the Pars Distalis.
Term
CRH
Definition
Corticotropin-releasing hormone
Stimulates the release of ACTH(Adrenocorticotropic hormone) in the corticotropes of the adenohypophysis in the Pars Distalis.
Term
GnRH
Definition
Gonadotropin-releasing Hormone
Stimulates the release of FSH(Follicle-stimulating hormone) and LH(Luteinizing hormone) in the gonadotropes of the adenohypophysis in the Pars Distalis.
Term
Somatomedin(GHRH)
Definition
Growth hormone-releasing hormone
Stimulates the release of GH(Growth Hormone) in the mammosomatotropes of the adenohypophysis in the Pars Distalis.
Term
Somatostatin(GHIH)
Definition
Growth hormone-inhibiting hormone
Inhibits the release of GH(Growth Hormone) in the mammosomatotropes of the adenohypophysis in the Pars Distalis.
Term
PRH
Definition
Prolactin-releasing hormone
Stimulates the release of PRL/pr(Prolactin) in the lactotropes of the adenohypophysis in the Pars Distalis.
Term
PIH
Definition
Prolactin-inhibiting hormone
Inhibits the release of PRL/Pr(Prolactin)in the lactotropes of the adenohypophysis in the Pars Distalis.
Term
Oxytocin
Definition
Stimulates uterine contraction during coitus and delivery
Stimulates milk ejection
Term
Vasopressin(ADH)
Definition
Antidiuretic hormone
Stimulates water reabsorption of water into the blood from tubular fluid in the collecting ducts in the kidney.
Term
TSH
Definition

Thyroid-stimulating hormone

Stimulates the release of T3 and T4 by the Thyroid Gland.

DOES NOT Stimulate Calcitonin

Term
ACTH
Definition

Adrenocorticotropic hormone

Stimulates the release of Cortisol by the Adrenal Cortex

Term
FSH
Definition
Follicle-stimulating hormone
Stimulates follicular development and estrogen in the ovary.
Stimulates sperm formation in the seminiferous tubules of the testis.
Term
LH
Definition
Luteinizing Hormone
Stimulates ovulation
Stimulates secretion of progesterone from the corpus luteum.
Stimulates secretion of testosterone from the interstitial cells of the testis.
Term
Somatotropin(GH)
Definition
Growth Hormone
Stimulates the release of IGF-1 and IGF-2(Insulin-like growth factors 1 and 2), also known as somatomedins.
Stimulates tissue metabolism.
Stimulates long-bone linear growth
Stimulates positive balance of Nitrogen
Stimulates lipolytic activity
Term
Pr, PRL
Definition
Prolactin
Stimulates milk secretion in the mammary glands of females
Term
ß-LPH
Definition
ß-Lipotropin
Stimulates fat breakdown
Term
MSH(s)
Definition
Melanocyte-stimulating hormone
Stimulates melanin granule dispersion from melanophore cells in reptiles.
Stimulates reflecting platelets in iridophore cells in reptiles, fish, and amphibians.
Term
T4
Definition

Thyroxine

Stimulates oxygen uptake in all body cells.

Term
T3
Definition

Triiodothyronine

Increases oxygen uptake in all body cells.

Term
Calcitonin
Definition
Inhibits the breakdown of calcium systemically, then causes bone to reabsorb calcium.
Term

PTH

 

Definition
Parathyroid hormone
Stimulates calcium release through the breakdown of bone.
Stimulates the release of 1,25[OH]2D3(1,25-dihydroxycholecalciferol) from the kidneys
Term
Insulin
Definition
Stimulates glucose uptake by muscle and adipose cells, and decreases blood glucose levels.
Term
Glucogon
Definition
Stimulates glycogen(glucose storage) breakdown in the liver. AKA Gluconeogenesis
Term
Somatostatin(Pancreatic)
Definition
Inhibits the release of Glucogon, Insulin, and polypeptide secretions in the Pancreas
Inhibits CCK binding to inhibit secretion of digestive enzymes or the exocrine pancreas.
Inhibits secretin binding to inhibit the release bicarbonate secretions.
Term
Pancreatic Polypeptides
Definition
Inhibits the effects of CCK on the exocrine pancreas and gallbladder contractions.
Term
Cortisol
Definition
Immunosupression
Anti-inflammation
Metabolic stimulation:
Lipolysis
Gluconeogenesis
Glycemia(Inhibits Insulin)
Sodium retention
Potassium Excretion
Calcium Excretion
Metabolic inhibition:
Bone matrix
Calcium absorption
Term
Aldosterone
Definition
Stimulates the release of potassium and hydrogen as well as the uptake of sodium within the collecting ducts and medullary collecting tubules of the kidneys.
Term
Norepinephrine(Adrenal)
Definition
Stimulates:
Breakdown of glycogen(Gluconeogenesis) in the liver
Mobilization of Fats
Increase in Basal Metabolic Rate
Tachycardia and heart palpitation
Vasoconstriction
Term
Epinephrine(Adrenal)
Definition
Stimulates:
Breakdown of glycogen(Gluconeogenesis) in the liver
Mobilization of Fats
Increase in Basal Metabolic Rate
Vasodilation in skeletal muscle and liver
Term
E2
Definition
Estradiol
Stimulates Ovulation and pregnancy
Stimulates sex drive and secondary chars
Term
P4
Definition
Progesterone
Stimulates egg implantation for a pregnant female
Stimulates sex drive and secondary chars
Term
Inhibin
Definition
Inhibits FSH secretion in the Hypophysis
Term
Relaxin
Definition
Stimulates the relaxation of the cervix and pelvic ligaments
Term
Testosterone
Definition
Stimulates sperm formation
Stimulates sex drive and secondary chars
Term
DHT
Definition
Dihydrotestosterone
Stimulates sperm formation
Stimulates sex drive and secondary chars
Stronger than Testosterone
Term
ANP
Definition
Atrial natriuretic peptide
Powerful Natriuretic and Diuretic stimulant
Stimulates vasodilation
Lowers blood pressure
Term
CCK
Definition
Cholecystokinin
Stimulates Pancreatic and gallbladder secretions
Term
Gastrin
Definition
Stimulates HCl and pepsin secretion
Term
GIP
Definition
Gastric inhibitory peptide
Stimulates insulin secretion
Term
Secretin
Definition
Stimulates pancreatic secretion
Term
VIP
Definition
Vasoactive Intestinal Peptide
Stimulates electrolyte secretion
Term
GHIH(Intestinal)
Definition
Somatostatin
Inhibits the release of gastrin, VIP(Vasoactive Intestinal Peptide), GIP(Gastic inhibitory peptide), secretin, and motilin
Term
Motilin
Definition
Stimulates Intestinal Motility
Term
Neurotensin
Definition
Inhibits GI motility
Term
1,25-(OH)2D3
Definition
1,25-Dihydroxycholecalciferol
Stimulates breakdown of bone by osteoclasts and increases blood Calcium levels
Term
Erythropoietin
Definition
Stimulates erythropoiesis
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