Muscle fibers differ from "typical cells" in that muscle fibers

A) lack a plasma membrane.
B) have many nuclei.
C) are very small.
D) lack mitochondria.
E) All of the answers are correct.


Answer: B

Anatomy & Physiology

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The vessels that deliver oxygen to the tissues of the body are part of the __________.

Fill in the blank(s) with the appropriate word(s).

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Which is not correct regarding the thymus gland?

A. It is fully encapsulated by connective tissue. B. Each thymic lobe is subdivided into lobules. C. It is a bilobed organ located in the mediastinum. D. Its thymic corpuscles are the site of T-lymphocyte maturation. E. It reaches its maximum size at puberty, then regresses.

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Which of the following is an active proteolytic enzyme?

a. pepsinogen b. chymotrypsinogen c. procarboxypeptidase d. secretin e. None of the above

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The amount of air that can be forcibly taken in after normally inhaling is called ________

A) Residual volume B) Expiratory reserve volume C) Inspiratory reserve volume D) Tidal volume

Anatomy & Physiology