What accounts for the majority of bone (osseous) tissue matrix?

A) bone marrow B) osteoid C) calcium salts D) collagen fibers


Answer: C

Anatomy & Physiology

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Leptin stimulates the hypothalamus to secrete ________, which in turn acts to _____ appetite

a. ?-MSH; stimulate b. ?-MSH; suppress c. melanocortin; stimulate d. melanocortin; suppress e. none of these.

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Lung tissue receives oxygen and nutrients from the

A) pleural arteries. B) pulmonary arteries. C) pulmonary veins. D) coronary arteries. E) bronchial arteries.

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Astronauts in zero gravity are able to move food through their digestive tracts because ________

A) skeletal muscle puts pressure on the digestive tract B) smooth muscle produces waves of contractions that propel material through the digestive tract C) striated muscle creates a pressure gradient that forces material from one end of the digestive tract to the other D) cardiac muscle maintains a high pressure that moves material through the digestive tract E) skeletal muscle sphincters contract and allow materials to move through the digestive tract

Anatomy & Physiology

Problems with the formation of the chorion would affect

A) the embryo's ability to derive nutrition from the mother. B) lung formation. C) formation of the limbs. D) the embryo's ability to produce blood cells. E) None of the answers are correct.

Anatomy & Physiology