Deck 40: Endocrine Structure and Function

Question 1

In the regulation of body processes, the effects or hormones last longer than those of neurotransmitters.

Answer 1

True

Question 2

A major difference between endocrine and exocrine glands is that endocrine glands are ductless.

Answer 2

True

Question 3

The hormones that are released by the posterior lobe of the pituitary gland are synthesized by the

A)thymus gland.
B)anterior lobe of the pituitary gland.
C)pineal gland.
D)posterior lobe of the pituitary gland.
E)hypothalamus.

Answer 3

E

Question 4

All of the following glands are both endocrine and exocrine except

A)the testes.
B)the pancreas.
C)the adrenal glands.
D)the ovaries.
E)All of these glands are both endocrine and exocrine.

Question 5

Which system in the body is similar to the endocrine system, in that it is also a regulatory system, and it also functions through chemical secretions and receptor sites?

A)Muscular system
B)Cardiovascular system
C)Integumentary system
D)Nervous system
E)Urinary system

Question 6

All of the following hormones are synthesized by the pituitary gland except

A)calcitonin.
B)growth hormone.
C)prolactin.
D)thyroid-stimulating hormone.
E)luteinizing hormone.

Question 7

Exocrine glands secrete substances directly into the interstitial fluids of the body.

Question 8

If you were suddenly in a dangerous situation, which of your major endocrine glands would you expect to be activated to secrete hormones?

A)Adrenal gland
B)Thyroid gland
C)Pituitary gland
D)Hypothalamus
E)All of these endocrine glands would likely be activated during a dangerous situation.

Question 9

Which of the following is not true of the adrenal gland?

A)The zona fasciculata is the outermost layer of the cortex.
B)All of the hormones of the adrenal cortex are steroids.
C)The adrenal medulla secretes epinephrine and norepinephrine.
D)Aldosterone is a mineralocorticoid that is secreted by the adrenal cortex.
E)All of these are true of the adrenal gland.

Question 10

Which of the following is not true of true hormones?

A)Each hormone can only influence target cells that contain receptors for it.
B)They are secreted by both endocrine or exocrine glands.
C)Some hormones influence the rates of chemical reactions in their target cells.
D)Some hormones regulate water and electrolyte balance.
E)All of these are true of true hormones.

Question 11

After ovulation, the remnants of the follicle become an endocrine structure called the

A)corpus albicans.
B)theca.
C)corpus luteum.
D)antrum.
E)tunica albuginea.

Question 12

Which of the following endocrine glands is composed of 2 different regions, one consisting of glandular epithelial tissue, and the other consisting of nervous tissue?

A)The pineal gland
B)The thymus gland
C)The parathyroid gland
D)The pituitary gland
E)The thyroid gland

Question 13

Milk synthesis in females is stimulated by the hormone ________, while milk ejection is stimulated by ________.

A)oxytocin; prolactin
B)aldosterone; cortisol
C)prolactin; oxytocin
D)LH; FSH
E)estrogen; progesterone

Question 14

Which of the following antagonistic hormones keep the blood calcium level balanced?

A)Aldosterone and cortisol
B)Parathyroid hormone and calcitonin
C)Epinephrine and norepinephrine
D)FSH and LH
E)ADH and OT

Question 15

Which of the following hormones causes water retention by the kidneys in times of dehydration?

A)Glucagon
B)ADH
C)Somatostatin
D)PTH
E)Adrenal androgens

Question 16

What is a paracrine secretion?

A)A secretion that is released into the interstitial fluid and transported by the blood
B)A secretion that affects the cell that secreted it
C)A secretion that is released onto an internal body surface
D)A secretion that is released onto the skin
E)A secretion that affects neighboring cells

Question 17

The theca folliculi, which surrounds mature follicles in the ovary, produces androgens (male sex hormones).

Question 18

The hormones FSH and LH have no functions in the male.

Question 19

Which of the following endocrine glands secretes 2 antagonistic hormones?

A)The pancreas
B)The ovaries
C)The thyroid gland
D)The adrenal medulla
E)The pituitary gland

Question 20

Which of the following is not true of the hormone TSH?

A)It is synthesized by the anterior pituitary gland.
B)Its target is the thyroid gland.
C)It stimulates the release of thyroid hormones.
D)Due to negative feedback, a low level of thyroid hormones will inhibit the release of TSH.
E)All of these are true of the hormone TSH.