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Biology Dictionary

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Anatomy and Physiology Quiz 1

1. The lymphatic system is an important part of the circulatory system. What are the major functions of the lymphatic system?

A.To move extracellular fluid around cells.

B.To provide immune cells with access to various tissues for defense.

C.To help regulate blood pressure and the body's fluid content.

D.All of the above.

2. Which of these statements about the CNS is NOT true?

A.The CNS is made of the brain, spinal cord, and cranial nerves

B.The CNS is protected by skeletal structures, three meningeal membranes, and CSF

C.The cerebellum receives auditory and visual stimuli to coordinate autonomic functions

D.None of the above

3. A pacemaker is a small electrical device inserted into the chest, which sends a repetitive signal to the sinoatrial node. Why would this be necessary?

A.The cardiac cycle is off, which is controlled by the node

B.The extra electricity helps stimulate stronger heart contractions, for weak blood pressure

C.The electricity counters the heartbeat, slowing the heart for people with high blood pressure

D.All of the above

4. Which area of the body DOES NOT have an endocrine gland?

A.The brain

B.The neck

C.The gonads

D.None of the above.

5. What is blood urea nitrogen?

A.A type of nitrogen only found in blood urea.

B.A test to assess the levels of nitrogen in urea.