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Biology Dictionary

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Anatomy and Physiology Quiz 1

1. Which of these statements about the vagus nerve is true?

A.An important part of the sympathetic nervous system

B.Increases heart rate variability

C.Increased activity during the third trimester of pregnancy.

D.All of the above

2. Match the correct symptom with a deficiency in ACTH, per the article:

A.Erectile dysfunction

B.Nausea

C.Thirst

D.Reduced Muscle Mass

3. Why would workers in a shipyard exposed to asbestos be at a higher risk for coronary artery disease?

A.Asbestos can increase blood pressure, leading to plaque formation

B.Workers in a shipyard do heavy manual labor and therefore place a greater strain on their heart

C. Asbestos can irritate the linings of arteries and begin the process of LDL deposition

D.All of the above

4. Why do the lymph nodes typically swell up when a person gets sick?

A.They do not swell up

B.The swelling is caused by excess lymph fluid

C.The swelling is caused by immune reactions

5. Where is the pituitary gland located?

A.At the base of the hypothalamus, near the bottom of the brain.

B.Deep within the middle of the brain.

C.Next to the spinal cord, in the middle of the back.

D.The pituitary is found in none of these locations.

6. A miracle of modern science is the heart transplant. Doctors, using the still viable heart from a deceased person, can replace the heart of someone who has a bad or damaged heart. The doctors simply put the patient on life support, remove their heart, put the new one in and shock it back into rhythm. Why does electricity reactivate the heart?

A.Nerves work by passing electrical signals

B.Muscles are stimulated by electrical signals

C.Once reactivated, the heart tissue can excite itself

7. How many layers of smooth muscles are found in the wall of the stomach?

A.1

B.2

C.3

D.4

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