Which is not true about spermatogenesis?
A. Mature spermatozoa are haploid.
B. The process takes place in the walls of the seminiferous tubules.
C. The process includes two meiotic divisions.
D. Spermatogenesis begins at birth and continues throughout a man's life.
E. The final stage of the process is called spermiogenesis.
Answer: D
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The term medial means
A. toward the tail end of the spine. B. toward the midline of the body. C. nearer the outside of the body or an organ. D. the back of the body or body part. E. lying on the abdomen, face downward.
Which of the following is true of osteoclasts?
A) Osteoclasts maintain protein and mineral content of matrix. B) Osteoclasts are responsible for laying down osteoid. C) Osteoclasts form cytoplasmic extensions within canaliculi. D) Osteoclasts are located within lacunae. E) Osteoclasts secretes protein digesting enzymes and acids that dissolve matrix.
Blood is drained from the lower portion of the large intestine by the
A) superior mesenteric vein. B) celiac trunk. C) intestinal vein. D) inferior mesenteric vein. E) gastro-epiploic vein.
Taste buds are not associated with _____ papillae
A. foliate B. filiform C. fungiform D. vallate E. papilliform