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Human Physiology Chapter 11- Endocrine System Questions and answers 2024
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Human Physiology Chapter 11:Endocrine System
10) A cell is only able to respond to hormones if specific hormone
✅✅
receptors are present on the membrane or within the cell. true or false -
-TRUE
100) Control of melatonin secretion from the pineal gland requires
________.
A) sympathetic stimulation from the suprachiasmatic nucleus of the
hypothalamus
B) activation of melanopsin from ganglion cells of the retina
✅✅
C) sunlight or lack of sunlight
D) All of the choices are correct. - -D) all correct
✅✅
101) Progesterone secretion would be lessened if ovulation did not
occur. true or false. - -TRUE
102) Male secondary sex characteristics would not develop in boys in
which the ________ cells did not secrete testosterone.
A) seminiferous tubule
B) interstitial
✅✅
C) Leydig
D) Both interstitial and Leydig are correct. - -D) Both interstitial and
Leydig are correct.
103) A deficiency of dietary cholesterol would decrease the production of
________.
A) glucagon
B) atrial natriuretic hormone
✅✅
C) melatonin
D) estradiol-17b - -D) estradiol-17b
104) The placental hormone with actions similar to both growth hormone
and prolactin is ________.
A) chorionic somatomammotropin
B) chorionic gonadotropin
, ✅✅-A)chorionic somatomammotropin
C) placental prolactin
D) placental lactogen -
105) After menopause, the adrenal cortex is the primary source of
✅✅
estrogen or biologically similar molecules in females. true or false. -
-TRUE
106) Molecules that are produced within one tissue but regulate a
different tissue of the same organ are called ________ regulators.
A) autocrine
B) endocrine
✅✅
C) paracrine
D) exocrine - -C) paracrine
107) The regulators which mediate the function of the cells in which they
are synthesized from are called ________.
A) autocrine regulators
B) endocrine regulator
✅✅
C) paracrine regulators
D) exocrine regulators - -A) autocrine regulators
108) Skin wound healing would be slowed due to a lack of ________
growth factors.
A) nerve
B) endothelin
✅✅
C) epidermal
D) platelet - -C) epidermal
109) Blood vessel diameter is regulated by all of the following EXCEPT
________.
A) nitric oxide
B) bradykinin
✅✅
C) endothelin
D) platelet-derived growth factor - -D) platelet-derived growth factor
11) Hormones that enhance the responsiveness of a target organ to a
second hormone have ________.
, A) complementary effects
B) synergistic effects
✅✅-D) Permissive effects
C) antagonistic effects
D) permissive effects -
110) Which of the following are derived from the precursor arachidonic
acid?
A) Thyroid hormones
B) Adrenal medulla hormones
✅✅
C) Glucocorticoids
D) Prostaglandins and leukotrienes - -D) Prostaglandins and
leukotrienes
111) Prostaglandins are eicosanoids derived from the fatty acid
________.
A) palmitic acid
B) linolenic acid
✅✅
C) linoleic acid
D) arachidonic acid - -D) arachidonic acid
112) Stomach irritation by NSAIDs like aspirin is believed to be the result
of ________.
A) inhibition of PGI2 and PGE2
B) secretion of PGI2 and PGE2
✅✅
C) inhibition of thromboxane A2
D) None of the choices are correct. - -A)inhibition of PGI2 and
PGE2
113) Which of the following inhibits COX3 in the brain, which results in
pain and fever reduction?
A) Acetaminophen (Tylenol)
B) Aspirin
✅✅
C) Ibuprofen (Motrin)
D) All of the choices are correct. - -A)Acetaminophen (Tylenol)
114) Which of the following statements about prostaglandins is true?
A) Prostaglandin synthesis is blocked by the actions of caffeine.
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