Normal aging causes many effects on the body, including

A) epithelia become thinner.
B) repair and maintenance activities become less efficient.
C) connective tissue becomes more fragile.
D) hormone and lifestyle alterations affect the structure and chemical composition of many tissues.
E) All of the answers are correct.


E) All of the answers are correct.

Anatomy & Physiology

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The part of the small intestine most likely to develop an ulcer from exposure to gastric juice is the

A) pylorus. B) duodenum. C) ileum. D) cecum. E) jejunum.

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Capillaries are best described as

A) thin walled vessels that carry blood deficient in oxygen. B) thick walled vessels that carry blood rich in oxygen. C) microscopic vessels in which blood exchanges material with the interstitial fluid. D) thick walled vessels that convey blood away from the heart. E) thin walled vessels that convey blood toward the heart.

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Which tube carries sperm from the scrotum to the abdominopelvic cavity?

A. Epididymis B. Ejaculatory duct C. Ductus deferens D. Urethra

Anatomy & Physiology