anatomy final quiz
Consider the stress response. Unlike the resistance phase, the alarm phase ________. 1. involves the endocrine system 2. involves the activation of the "fight or flight" response 3. is not part of the stress response 4. involves the parasympathetic nervous system
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 1. ACTH. 2 MSH. 3. LH. 4.GH. 5. TSH.
GH
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? 1. Yes, without the calcitonin, high blood levels of calcium will cause convulsions. 2. Possibly, it depends on whether the parathyroid glands were taken with the thyroid by accident. 3. Yes, without the calcitonin she may suffer heart failure. 4. No, the synthetic thyroid hormone will also control the calcium. 5. No, hormones from the liver and kidneys will regulate calcium through the intestinal tract.
Possibly, it depends on whether the parathyroid glands were taken with the thyroid by accident.
Which statement is true about the adrenal glands? 1. The main hormone of the adrenal medulla is norepinephrine. 2. The hormones of the adrenal cortex rely on control by the autonomic nervous system. 3. The adrenal cortex regulates the adrenal medulla. 4. The adrenal cortex is most important in the control of sodium, potassium, and glucose blood levels. 5. The adrenal androgen hormones are found only in males.
The adrenal cortex is most important in the control of sodium, potassium, and glucose blood level
Which statement is true about the pituitary? 1. The alternate name for the pituitary is the infundibulum. 2. The hypothalamus communicates with the anterior pituitary only. 3. The anterior pituitary controls the posterior pituitary. 4. The pituitary hormones all work by activating G proteins and triggering cAMP within cells. 5. The pituitary glands, both anterior and posterior, control every other endocrine gland.
The pituitary hormones all work by activating G proteins and triggering cAMP within cells.
Which is a mineralocorticoid hormone? 1. cortisol 2. melatonin 3. glucagon 4.aldosterone
aldosterone
Target cells of hypothalamic releasing and inhibiting hormones are located in the 1. thymus gland. 2. posterior pituitary. 3. suprarenal gland. 4. testes. 5. anterior pituitary.
anterior pituitary.
Generally, the actions of hormones 1. are shorter-lasting than the actions of the nervous system. 2. do not affect homeostasis. 3. can produce complex changes in physical structure and physiological changes. 4. are faster to react than the nervous system. 5. tend to be less widespread than actions of the nervous system.
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)? 1. melatonin 2. melanin 3. glucagon 4. calcitonin 5.insulin
melatonin
The hypothalamus transports hormones to the posterior pituitary by way of 1. direct mechanical control 2. .altering ion concentrations in the anterior pituitary. 3. releasing and inhibiting hormones. 4. neural axons, directly. 5. gap junctions.
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) 1. antagonistic effect. 2. permissive effect. 3. integrative effect. 4. opposing effect. 5. synergistic effect.
permissive effect.
Iodine is extremely important in the formation of what hormone? 1. thyroid-stimulating hormone (TSH) 2. adrenocorticotropic hormone (ACTH) 3. antidiuretic hormone (ADH) 4. thyroxine (T4)
thyroxine (T4)
