Endocrine System Study Guide Flashcards
what does the endocrine system regulate
regulation of cellular metabolism and energy balance, reg. reproduction, growth and development
what does the endocrine system maintain
electrolyte, water, nutrients balance of blood, homeostasis
what structure does endocrine glands lact
endocrine glands dont have ducts and hormones are secreted by difusion
autocrines
local chemical messengers that act on the same cells thast secrete them, while paracrines act on neighboring cells
whats the diff. between the endocrine and nervous system
Endocrine: Hormones(secretes), slow, target distance far apart, secrete into the bloodstream
Nervous- Can override endocrine, fast, neurotransmitters(secretes), secrete into synapse
describe exocrine glands
produce nonhormonal substances(ex:sweat)
have ducts to carry secretion to membrane
describe endocrine glands
produce hormones
lacks ducts
make hormones which diffuse into blood and are used internally
name the 5 endocrine glands identified by the author
pituitaty pineal parathyroid adrenal thyroid
describe negative feedback
when the levels go above or below a set point, the endocrine system secretes hormones to lower or raise the level
whats the location of the pituitary. why is it called the master gland, what part of the brain controls it
Brain- sella turcia
called master gland because it controls all cells
controlled by hypothalamus
name the 6 hormones by the anterior pituitary
prolaticin GH ACTH TSH LH FSH
ACTH
Stress hormone
TSH
stimulates activity of thyroid
LH
reg. sex hormones
FSH
sperm and egg production
Oxytocin
contactions for labor, stim. uterine
what is Pitocin
synthetic oxytocin given to expectant mothers who are having diff. producing contractions for productive labor during child birth
describe antidiuretic hormone
from pituitary gland, aids in water balance, aka vasopressin. STIM. KIDNEY TUBULE CELLS TO REABSORB WATER. TOO LITTLE LEADS TO DIABETES INSIPIDUS
whats a diuretic
hormones that make you pee