The extracellular matrix of cartilage, unlike that of most connective tissues, has unusually abun-dant molecules of:
a. Keratin
b. Type I collagen
c. Type III collagen
d. Type IV collagen
e. Water
ANS: E
The highly charged proteoglycans of cartilage, present in association with type II collagen, be-come associated with numerous water molecules that give cartilage its resilience and stiffness.
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Indicate whether the statement is true or false
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A. desensitize the fetus. B. activate fetal Rh antigens. C. protect the father. D. prevent sensitization of the mother. E. change the mother's blood type.
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A. contain a lot of elastic tissue. B. contain a thick tunica media. C. are strong, rigid vessels. D. transport blood from arterioles to capillaries. E. do not contain smooth muscle in their walls.
Which of the following statements concerning peptide hormones is incorrect?
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