The white, cheesy-looking substance that is produced by the sebaceous glands and protects a baby's skin while it is floating in its water-filled sac inside the mother is called ________
A) lanugo
B) vernix caseosa
C) milia
D) vellus
B
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Which is not true about spermatogenesis?
A. The process includes two meiotic divisions. B. The final stage of the process is called spermiogenesis. C. Mature spermatozoa are haploid (n=23). D. Spermatogenesis begins at birth and continues throughout a man's life. E. The process takes place in the walls of the seminiferous tubules.
In which type of cell junction are two cells held together by embedded membrane proteins called connexons?
A) spot desmosome B) gap junction C) tight junction D) hemidesmosome E) CAM
Which of the following statements about the cauda equina is true?
A. It is a bundle of connective tissue fibers that extends from the medullary cone. B. It is synonymous with the medullary cone. C. It is a bundle of nerve fibers that occupies the vertebral canal from L2 to S5. D. It innervates structures of the anterior and medial thigh. E. It is part of the lumbosacral enlargement.
What is the function of antidiuretic hormone?
A. It targets the cerebral cortex. B. It inhibits salivation and thirst. C. It promotes water conservation. D. It stimulates angiotensin II secretion. E. It stimulates hypothalamic osmoreceptors.