Which is not involved in the feedback loop regulation of thyroid hormone secretion?
A. Hypothalamus
B. Thyrotropin-releasing hormone
C. Thyroid stimulating hormone
D. Thyrotropic cells
E. Parafollicular cells
Answer: E
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Hair production involves a specialized type of keratinization that occurs in the hair ______
Fill in the blank with correct word.
If atom X has an atomic number of 74 it would have which of the following?
A) 37 protons and 37 neutrons B) 37 protons and 37 electrons C) 37 electrons D) 74 protons
Mean arterial pressure is
a. diastolic pressure + (systolic/3). b. systolic pressure + (pulse pressure/3). c. diastolic pressure + (pulse pressure/3). d. pulse pressure - (diastolic pressure/3). e. pulse pressure + (systolic pressure/3).
The axons of the sympathetic postganglionic neurons secrete ________.
A. epinephrine B. acetylcholine C. norepinephrine D. acetylcholine or epinephrine E. acetylcholine or norepinephrine