Which of the following hormones may lead to acromegaly if hypersecreted after closure of the epiphyseal plates?
A) cortisol
B) parathyroid hormone
C) insulin
D) growth hormone
E) epinephrine
Answer: D
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Metal ions such as magnesium or calcium can serve as enzyme ________.
coenzymes ribozymes substrates cofactors
Which cells of the ovary convert androgens to estrogens, under the control of follicle stimulating hormone?
A. Theca folliculi cells B. Primary oocytes C. Simple squamous epithelial cells D. Secondary oocytes E. Granulosa cells
Which statement is incorrect?
a. Afferent fibers enter the spinal cord through the ventral root. b. The dorsal and ventral roots at each level of the spinal cord join to form a spinal nerve. c. The spinal cord is not as long as the vertebral column. d. The ventral horn contains cell bodies of motor neurons that supply skeletal muscles. e. The white matter of the spinal cord is organized into ascending and descending tracts.
Prominent muscular ridges, which extend along the inner surface of the right auricle, across the adjacent anterior wall of the right atrium are called ________.
A) moderator bands B) pectinate muscles C) trabeculae carneae D) papillary muscles E) chordae tendineae