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Anatomy and Physiology Quiz 1

1. How will darkness affect melatonin secretion? Choose the best answer.

A.Increase

B.Decrease

C.No effect

D.None of the above

2. Which of these organs contains the pyloric sphincter?

A.Esophagus

B.Stomach

C.Small Intestine

D.Large Intestine

3. Not all animals have the same type of digestive system. In cows and other ruminants, several different stomachs are part of the digestive system. Why do different animals have different digestive systems?

A.The digestive system has evolved to handle the food a given species typically eat.

B.There is no good reason.

C.Cows need extra stomachs to make milk.

4. Which of these statements about T-cell maturation is true?

A.Positive selection allows T-cells that can recognize specific pathogenic antigens to proliferate

B.Negative selection allows T-cells that do not recognize self-antigens to proliferate

C.T-cell maturation occurs in the thymus

D.All of the Above

5. Why is an enlarged prostate gland a sign of poor health?

A.The gland could be infected.

B.The gland could be cancerous.

C.Poor diet and blood pressure are linked to a swollen prostate.