This figure shows an intestinal villus. What is the structure indicated by the number 1?

A. Intestinal vein
B. Intestinal artery
C. Flagellum
D. Microvillus
E. Lacteal


Answer: E

Anatomy & Physiology

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Sperm enter the cervical canal through the external

A) isthmus. B) ampulla. C) fimbra. D) os. E) commissure.

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In immature animals, the growth plate consists of ________________________________________

Fill in the blank(s) with correct word

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The ability of white blood cells to leave the circulation and enter tissues is called

A. chemotaxis. B. diapedesis. C. margination. D. intrusion. E. exocytosis.

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Which of the following statements is not a description of how skin protects the body?

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Anatomy & Physiology