Quiz 8

Consider the stress response. Unlike the resistance phase, the alarm phase ________. A. involves the endocrine system B. involves the parasympathetic nervous system C. involves the activation of the "fight or flight" response D. is not part of the stress response

involves the activation of the "fight or flight" response

The pituitary hormone that stimulates the breakdown of stored fats and the release of fatty acids into the bloods is A. GH. B. ACTH. C. LH. D. MSH. E. TSH.

GH

Which is a mineralocorticoid hormone? A. aldosterone B. glucagon C. cortisol D. melatonin

aldosterone

Target cells of hypothalamic releasing and inhibiting hormones are located in the A. suprarenal gland. B. testes. C. thymus gland. D. anterior pituitary. E. posterior pituitary.

anterior pituitary

Generally, the actions of hormones A. are faster to react than the nervous system. B. do not affect homeostasis. C. tend to be less widespread than actions of the nervous system. D. are shorter-lasting than the actions of the nervous system. E. can produce complex changes in physical structure and physiological changes.

can produce complex changes in physical structure and physiological changes

Which hormone is a very effective antioxidant, one that may protect CNS neurons from free radicals such as nitric oxide (NO) or hydrogen peroxide (H2O2)? A. calcitonin B. melatonin C. insulin D. melanin E. glucagon

melatonin

The hypothalamus transports hormones to the posterior pituitary by way of A. direct mechanical control. B. gap junctions. C. altering ion concentrations in the anterior pituitary. D. neural axons, directly. E. releasing and inhibiting hormones.

neural axons, directly

The fact that epinephrine has no apparent effect on energy consumption unless thyroid hormones are present in normal concentrations is an example of a(n) A. synergistic effect. B. opposing effect. C. permissive effect. D. antagonistic effect. E. integrative effect.

permissive effect

Marissa has had her entire thyroid gland removed because of a malignant tumor. She takes synthetic thyroid hormone to replace the thyroxine that her thyroid gland would have produced, but she is worried about her blood calcium. Does she need to worry about this problem? A. No, hormones from the liver and kidneys will regulate calcium through the intestinal tract. B. No, the synthetic thyroid hormone will also control the calcium. C. Yes, without the calcitonin, high blood levels of calcium will cause convulsions. D. Possibly, it depends on whether the parathyroid glands were taken with the thyroid by accident. E. Yes, without the calcitonin she may suffer heart failure.

possibly, it depends on whether the parathyroid glands were taken with the thyroid by accident

Which statement is true about the adrenal glands? A. The main hormone of the adrenal medulla is norepinephrine. B. The adrenal androgen hormones are found only in males. C. The adrenal cortex regulates the adrenal medulla. D. The adrenal cortex is most important in the control of sodium, potassium, and glucose blood levels. E. The hormones of the adrenal cortex rely on control by the autonomic nervous system.

the adrenal cortex is most important in the control of sodium, potassium, and glucose blood levels

Which statement is true about the pituitary? A. The alternate name for the pituitary is the infundibulum. B. The pituitary glands, both anterior and posterior, control every other endocrine gland. C. The anterior pituitary controls the posterior pituitary. D. The pituitary hormones all work by activating G proteins and triggering cAMP within cells. E. The hypothalamus communicates with the anterior pituitary only.

the pituitary hormones all work by activating G proteins and triggering cAMP within cells

Iodine is extremely important in the formation of what hormone? A. antidiuretic hormone (ADH) B. thyroid-stimulating hormone (TSH) C. thyroxine (T4) D. adrenocorticotropic hormone (ACTH)

thyroxine (T4)