Prostatic enlargement in older men is often due to the activity of what enzyme that acts on testosterone?

A. Epididymal sulfhydryl oxidase
B. Tyrosine hydroxylase
C. Aromatase
D. 5-alpha reductase


Answer: D

Anatomy & Physiology

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Complex unconscious motor patterns are controlled by neurons in various locations. The ones that control activities such as riding a bicycle are located in the

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At the base of each cilium is a structure called the ________.

A. dynein arm B. centrosome C. kinetochore D. basal body E. None of the choices are correct.

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In the process of spermiogenesis, ________ become ________

A) spermatogonia; spermatocytes B) spermatocytes; spermatids C) spermatozoa; spermatids D) spermatocytes; spermatozoa E) spermatids; spermatozoa

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Transverse foramina are found in ________ vertebrae.

A. sacral B. cervical C. thoracic D. lumbar E. all

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