The optic disc is medial to the fovea centralis and is the site from which nerve fibers from the retina leave the eye and become part of the optic nerve.
Answer the following statement true (T) or false (F)
True
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ADH level in blood regulates water output by what mechanism?
A. The amount of sodium ions reabsorbed by the distal convoluted tubules and collecting ducts is altered B. The amount of water reabsorbed at the distal convoluted tubules and collecting ducts is altered C. The amount of water reabsorbed at the nephron loops is altered D. The amount of filteration at the glomeruli is altered
The surface of articular cartilage is
A) slick. B) flat. C) smooth. D) rough. E) both slick and smooth.
Lymph nodes
A. filter lymph. B. contain a dense network of collagen fibers. C. serve as auxiliary exchange surfaces for respiratory gases. D. produce red blood cells. E. serve as the main recycling centers for red blood cells and their parts.
What is the maturation process in which spermatids elongate and shed excess cytoplasm?
A) spermiogenesis B) spermatogenesis C) meiosis II D) meiosis I