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A&P University Of Texas - Arlington -UTA A&P II Ch. 18 Endocrine System Questions With Complete Solutions $10.99   Add to cart

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A&P University Of Texas - Arlington -UTA A&P II Ch. 18 Endocrine System Questions With Complete Solutions

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A&P University Of Texas - Arlington -UTA A&P II Ch. 18 Endocrine System Questions With Complete Solutions

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  • November 6, 2024
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UTA A&P II Ch. 18 Endocrine System Questions With
Complete Solutions

2nd messenger of water-soluble protein hormone action Correct
Answer chemical messenger NOT protein
Not necessarily 2nd in the pathway!
May act as enzyme activator, inhibitor, or cofactor
Results in change in rates of metabolic reactions

ACTH Correct Answer stimulates release of glucocorticoids by
cortex (outer portion) of the adrenal glands

Adenohypophysis Correct Answer anterior lobe- synthesizes &
releases 7 peptide hormones (controlled by hypothalamus)

Adrenal cortex Correct Answer site of secretion of steroid
hormones aldosterone and cortisol

adrenal medulla Correct Answer site of secretion of
catecholamines

Aldosterone Correct Answer stimulus low blood pressure or
blood volume, renin system activates it or high K+
Functions to raise blood pressure and volume by conserving
water at kidneys
How? Increase Na+ absorption in kidneys, water follows,
increase blood volume and therefore pressure

amines (2) Correct Answer catecholamines, melatonin

, anabolic steroids Correct Answer Androgen Abuse, Suppress
GnRH permanently, preventing normal production of
testosterone forever!
Liver dysfunction
Testicular atrophy- infertility

Angiotensin I Correct Answer constricts arterioles, raising BP

Angiotensin II Correct Answer induces adrenal gland to secrete
aldosterone, conserves water, raising blood volume

antagonist hormones to calcium levels Correct Answer
Calcitonin & Parathyroid hormone
lowers Ca2+ raises Ca2+

antagonist hormones to glucose levels Correct Answer Insulin
& Glucagon
Lowers blood glucose raises blood glucose

Antagonistic effect- Correct Answer hormone actions oppose
each other

antagonistic effects of insulin and glucagon Correct Answer
When levels rise: Beta cells secrete insulin, stimulating transport
of glucose across plasma membranes

When levels decline: Alpha cells release glucagon, stimulating
glucose release by liver

Anterior Pituitary Hormones Correct Answer growth hormone,
thyroid stimulating hormone, follicle-stimulating hormone,

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