Thyroid-stimulating hormone (TSH) is secreted by the
A. hypothalamus, and it targets cells of the posterior pituitary gland
B. hypothalamus, and it targets cells of the anterior pituitary gland.
C. anterior pituitary, and it targets follicular cells of the thyroid gland.
D. posterior pituitary, and it targets parafollicular cells of the thyroid gland.
E. thyroid gland, and it targets cells of the parathyroid gland.
C
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The division of each primary spermatocyte produces a pair of ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is the result of the immature kidneys in the neonate?
A) fetal blood vessels close B) high urinary water loss C) fast heart rate D) poor thermoregulation E) defecation mainly fetal debris
Which of the following is an ascending tract of the spinal cord?
A. Lateral tectospinal tract B. Medial reticulospinal tract C. Ventral corticospinal tract D. Vestibulospinal tract E. Gracile fasciculus
During a race, a long-distance runner twisted his ankle. He finished the race without feeling any pain in his ankle. This lack of the perception of pain could be the result of an increase in ________.
A. epinephrine B. somatotropins C. gonadotropins D. beta endorphins E. lipotropins