37-1/Which of the following functions is regulated by the hormone melatonin? Select one: _ a. Circadian rhythm _ b....

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Medical Sciences

37-1/Which of the following functions is regulated by the hormonemelatonin?
Select one: _
a. Circadian rhythm _
b. Adaptation to stress
c. Start of labor
d. Skin pigmentation

2/A 67 years old women with a family history of a Graves'disease, an autoimmune disease characterised by the presence ofantibodies directed against thyroid stimulating hormone receptorsin the thyroid gland. Her condition is due to:
Select one:
a. A shortage of B lymphocytes _
b. an implanted \"foreign\" thyroid gland from an unrelateddonor _
C. the failure of her immune system to generate an innateimmune response
d. the failure of her immune system to prevent activation ofself-reactive lymphocytes

3/Which of the following conditions prolongs the coagulationtime?
Select one: _
a. Purpura
b. Anemia _
c. Polycythemia _
d. Hemophilia

4/Which of the following will increase upon stimulation of theparasympathetic nerves to the bronchi?
Select one: _
a. Lung compliance
b. Surface tension
C. Broncho constriction
d. Anatomic dead space

Answer & Explanation Solved by verified expert

4.2 Ratings (714 Votes)

1Correct answer is option a Circadian rhythm Circadian rhythm or sleep wake cycle is under the control of hormone melatonin It is released by pineal gland Adaptation to stress is controlled by various stress hormones They are cortisol catecholamines and thyroid hormones Uterine contractions during labour is maintained by oxytocin Skin See Answer

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