Why is the skin capable of repair, even after serious damage?
A) All layers of the skin have an excellent blood supply.
B) Stem cells persist in both the epidermis and dermis.
C) Individual skin cells have a high metabolic rate.
D) There are abundant fibroblasts in the epidermis.
E) Construction of scar tissue is easier than making normal skin.
B) Stem cells persist in both the epidermis and dermis.
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The spinal cord is part of the central nervous system.
Answer the following statement true (T) or false (F)
All of the following are located in the renal cortex, except
A. collecting ducts. B. renal corpuscles. C. proximal convoluted tubules. D. distal convoluted tubules. E. afferent arteriole.
Height begins to decrease on average after age
A) 25. B) 50. C) 65. D) 30.
What is the major function of the lymphatic system?
A) return leaked fluids back to the cardiovascular system B) produce offspring C) eliminate nitrogen-containing metabolic wastes from the body D) break down food into absorbable units E) secrete hormones to regulate body processes such as growth and reproduction