Hormones Flashcards
Anterior pituitary
Follicle-stimulating hormone (FSH)
Luteinizing hormone (LH)
Adrenocorticotropic hormone (ACTH)
Thyroid-stimulating hormone (TSH)
Prolactin Growth hormone (GH)
FLAT PIG
Pancreas
Exocrine: digestive enzymes (amylase, lipase, trypsin, chymotripsin) and bicarbonate
Endocrine: Insulin (remove glucose from blood & convert glucose to glycogen) and glucagon (breakdown of glycogen to glucose)
(Occurs in islets of Langerhans)
FSH
Spurs maturation of seminiferous tubules
Stimulates follicle growth. Mature follicle produces estrogen.
First stage of menstrual cycle
Surge in LH secretion from pituitary causes ovulation
Anterior pituitary
Progesterone
Readies the uterus for implantation
Production stops if LH stops and corpus luteum atrophies (no fertilization/implantation)
If implantation occurs hCG (human chorionic gonadotrophic hormone) maintains corpus luteum (maintains progesterone and estrogen)
LH
Luteinizing hormone
From pituitary
Surge causes ovulation
After ovulation remains of follicle in ovary create corpus luteum
LH stimulates corpus luteum to produce progesterone and estrogen
If no implantation occurs, estrogen and progesterone block LH and corpus luteum atrophies
Progesterone falls when luteum atrophies and uterine wall breaks down
Male- maturation of testes
Epinephrine
Increases metabolic rate
conversion of glycogen to glucose, increase nasal metabolic rate, increase blood to skeletal muscles, heart, and brain
ADH
Antidiuretic hormone- released in dehydration to make urine more concentrated (makes collecting duct more permeable)
Leads to ride in blood volume
Produced by hypothalamus, secreted by posterior pituitary
Aldosterone
Produced in adrenal cortex, steroid
Conserves water and sodium (secretion of potassium)
Leads to rise in blood volume and pressure
Acts by increasing reabsorption of sodium in distal tubule
Thyroid stimulation hormone
TSH, stimulates thyroid to secrete thyroxine
Prolactin
Milk production
ACTH
Adrenocorticotropic hormone- stimulates adrenal cortex to secrete it’s corticoids
Posterior pituitary
ADH (vasopressin)
Oxytocin
Oxytocin
Causes uterine contractions
Thyroxine
Secreted by thyroid. Accelerated oxidative metabolism throughout body
Parathyroid glands
Secrete parathyroid hormone- regulates calcium and phosphate balance between blood, bone, and other tissues (important for function of muscles and neurons).