Lab Flashcards
Fx of endocrine system
Produce and secrete hormones to regulate activity of cells and organs to maintain homeostasis
What are the organs of the endocrine system?
Pituitary gland
Glands
Thymus
Adrenal cortex
Pancreas
Adrenal medulla
Ovaries and testes
How does the endocrine system maintain homeostasis?
Feedback loops
What is the difference between the endocrine and exocrine organs?
Endocrine: no ducts, secretes the hormones into the blood
Exocrine: ducts secretes hormones go outside world
What are tropic hormones?
Hormones that target an endocrine gland.
What are the 3 major differences between nervous system and endocrine system?
NS is faster, shorter travel distance, shorter duration of effects.
Anterior pituatary gland hormones
HGH
TSH
FSH
PL
LH
ACTH
Posterior pit gland hormones and their fx
Oxytocin and anti diuretic hormone
OT: uterine contraction and milk release
ADH: water retention of the liver
Pineal gland hormone and it’s effects?
Melatonin
Mood, sexual maturation and circadian rhythm
Thyroid gland hormones and fx
T3 and T4
Targets all tissues to increase metabolic rate and heat production
Calcitonin: decreases ca levels in blood by targeting osteoclasts
Parathyroid hormone and fx
PTH: targets osteoclasts to increase ca levels in the blood
Thymus hormone and fx
Thymosin: targets T cells to stimulate activity and development
Cortex of the adrenal gland regions and their hormone and it’s fx
Glomerosa: aldosterone (decrease of sodium and water loss in the urine)
Fasciatulata: cortisol (increase fat and protein catabolism, stress resistance)
Reticular is: DHEA (pubic hair, libido, bone growth)
Medulla hormone and function
Norepinephrine and epinephrine
Flight or fight response
