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1
Which of the following is not a major gland of the human endocrine system?
A)Pancreas
B)Liver
C)Adrenal glands
D)Testes
2
Which one of the following is not an advantage of chemical messengers over electrical signals?
A)Chemical molecules initiate faster responses.
B)Chemical molecules can spread to all tissues.
C)Chemical signals can persist longer.
D)Different chemicals can target different tissues.
3
Second messengers are triggered as a response to
A)steroid hormones.
B)anabolic steroids.
C)peptide hormones.
D)All of the above
4
The endocrine gland that contains a posterior lobe and an anterior lobe is the
A)pancreas.
B)pituitary gland.
C)adrenal gland.
D)thyroid gland.
5
The hormone responsible for male secondary sexual characteristics is
A)growth hormone.
B)follicle-stimulating hormone.
C)thyroid-stimulating hormone.
D)testosterone.
6
Two hormones produced by the thyroid gland are thyroxin and
A)oxytocin.
B)calcitonin.
C)melatonin.
D)cortisol.
7
The essential hormone that regulates the level of calcium in your blood is produced by the
A)adrenals.
B)pituitary.
C)thymus.
D)parathyroids.
8
The two hormones that act as extensions of the sympathetic nervous system are
A)thyroxin and calcitonin.
B)adrenaline and norepinephrine.
C)insulin and glucagon.
D)cortisol and aldosterone.
9
The two endocrine hormones essential for survival are
A)aldosterone and PTH.
B)GH and LH.
C)insulin and glucagon.
D)calcitonin and thyroxin.
10
Which one of the following functions both as an endocrine gland and an exocrine gland?
A)Adrenal glands
B)Parathyroid glands
C)Pancreas
D)Pituitary gland
11
Exocrine glands are responsible for the production of hormones.
A)True
B)False
12
The main "switchboard" of the neuroendocrine system is the pituitary gland.
A)True
B)False
13
The islets of Langerhans in the pancreas produce the hormone insulin.
A)True
B)False
14
Aldosterone helps the kidneys maintain the proper balance of sodium and potassium ions in the body.
A)True
B)False
15
Epinephrine is produced by _________, while cortisol is a product of the _________.
A)kidney, adrenal gland
B)medulla, adrenal cortex
C)adrenal cortex, medulla
D)adrenal gland, kidney
E)thyroid, adrenal gland
16
Cyclic AMP functions as a second messenger for peptide hormones but not steroid hormones.
A)True
B)False
17
Which of the following is/are stimulated by the anterior pituitary?
A)Thyroid gland
B)Adrenal cortex
C)Testes
D)Ovaries
E)All of the above
18
Which of the following exerts control over the anterior pituitary?
A)Posterior pituitary
B)Thyroid gland
C)Testes
D)Ovaries
E)Hypothalamus
19
Steroid hormones bind to receptors on a target cell's cell membrane.
A)True
B)False
20
Individuals with diabetes mellitus
A)are unable to take up glucose from the blood.
B)are unable to break down glucose.
C)require additional insulin to break down glucose.
D)are twice as likely as nondiabetics to have a heart attack.
E)cannot consume glucose in their diet.





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