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Biology Dictionary

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Anatomy and Physiology Quiz 1

1. If your spinal cord is damaged, why might you lose the ability to move your limbs?

A.The spinal cord carries nerve signals from the brain, to the body, and back again.

B.This does not happen when your spinal cord is damaged.

C.You need your spinal cord to send hormonal signals to your arms and legs.

2. If your pituitary gland was removed, what would happen to CRH production in the Hypothalamus? (Look at the graphic of the relationship between the pituitary and hypothalamus for help.)

A.Nothing will change in the hypothalamus

B.The hypothalamus will overproduce CRH, with no response

C.The hypothalamus will underproduce CRH

D.None of the above.

3. Which of these organs contains the pyloric sphincter?

A.Esophagus

B.Stomach

C.Small Intestine

D.Large Intestine

4. Which of these statements is true?

A.Pulmonary circulation relates to the flow of blood between the heart and lungs

B.The aorta is one of the major veins delivering blood to the heart

C.All vertebrates have a four-chambered heart

D.All of the above

5. What can low levels of blood urea nitrogen indicate?

A.Too much exercise

B.Low-protein diet

C.Dehydration

D.All of the above

6. A fish heart has only two chambers: a single atrium and a single ventricle. Which of the following is a reason fish do not need a 4-chambered heart?

A.There is no reason, just random luck.

B.Gravity makes it harder for terrestrial animals to pump blood, so they must separate chambers.

C.Gills are more efficient than lungs at receiving oxygen.

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

A.Increase

B.Decrease

C.No effect

D.None of the above

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