Exam 3 - Chapter 14: Endocrine system (by definition) Flashcards
an internal state of equilibrium in the body
homeostasis
mineral salt that carries an electrical charge in solution
electrolyte
hormone produced by pancreatic alpha cells that stimulates the liver to change stored glycogen (a starch form of sugar) into glucose
glucagon
simple sugar that is the end result of carbohydrate digestion
glucose
hormone produced by beta cells in the pancreas that allow body cells to use glucose for energy or store it in the liver as glycogen
insulin
agent that mimics the effects of the sympathetic nervous system (such as epinepherine and norepinepherine)
sympathomimetic
pea sized gland located at the back of the brain. Sometimes called the master gland due to the way it regulates so many body activities. This gland has two lobes.
pituitary gland
produces ADH and oxytocin
posterior pituitary gland
the large, H-shaped organ just below the neck, composed of two large lobes separated by a strip of tissue called an isthmus
thyroid gland
the body’s major metabolic hormone; increases the rate of oxygen consumption which in turn speeds up metabolism. Made up of thyroxine and triiodothyronine
thyroid hormone (TH)
hormone that regulates calcium in the bloodstream; decreases the rate of calcium absorption from bones
calcitonin
hormone produced in the adrenal cortex - promotes the secretion of corticosteriods; hyper secretion causes Cushing disease; secreted from the anterior pituitary
ACTH
In females, stimulates egg production and increases the secretion of estrogen. In males, stimulates sperm production in the testes; secreted from the anterior pituitary
FSH
Regulates the growth of bone, muscle, and other tissues. ; secreted from the anterior pituitary
GH
In females, promotes ovulation and stimulates the production of estrogen and progesterone. In males, stimulates secretion of testosterone; secreted from the anterior pituitary
LH
promotes lactation in females; secreted from the anterior pituitary
PRL (prolactin)
stimulates the thyroid gland to release its hormones; secreted from the anterior pituitary
TSH
increases water reabsorption in the kidneys; secreted from the posterior pituitary
ADH
In females, promotes milk secretion from mammary glands and stimulates uterine contractions for labor; secreted from the posterior pituitary
oxytocin
glands located on the posterior lobes of the thyroid gland; secretes PTH which helps regulate calcium balance in the blood
parathyroid glands
causes bones to release calcium, intestines to absorb more calcium, and kidneys to increase calcium reabsorbtion
PTH
paired glands that sit on top of the kidneys; divided into the cortex and the medulla
adrenal glands
causes the kidneys to conserve sodium and to pass on potassium, which in turn increases water conservation by lowering urine output; secreted from the adrenal cortex
aldosterone
influences the metabolism of carbohydrates and fats. Cortisol is an example of this. Secreted from the adrenal cortex
glucocorticoids
androgens, estrogens, and progesterins help maintain secondary sex characterists like breasts in females and placement of body hair
sex hormones
also called adrenaline, this hormone secreted by the adrenal medulla acts to stimulate the sympathetic nervous system, increasing blood pressure, heart rate, cardiac output, and dilating airways.
epinephrine
gland that’s inferior to the stomach and in the bend in the duodenum. Functions as both an endocrine and an exocrine gland. Produces insulin and glucagon
pancreas
Portion of the pancreas that secretes insulin and glucagon
Islets of Langerhans
small, pine-cone shaped organ at the posterior portion of the brain that secrets melatonin; possibly inhibits the functions of the ovaries
pineal gland
(1 of 2) combining form of “adrenal gland”
adren/o
(2 of 2) combining form of “adrenal gland”
adrenal/o
combining form of “calcium”
calc/o
combining form of “secrete”
crin/o
(1 of 2) combining form of “sweetness” or “sugar”
gluc/o