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Mary went on a run at the park to get her mind off herbusy week. When she went on her run she saw a huge bear. She was inshock and froze, feeling her muscles starting to constrict andfinding herself having trouble breathing. When the bear startedcoming after her she panicked and ran for her life.

1. Which of the following are true of her autonomicnervous system?

A. Mary’s muscles were being innervated by the cranialand sacral region of her sympathetic nervous system.

B. Mary’s ventricle columns of her periaqueductal graycaused her immobility.

C. Cortisol and adrenaline were being released andspread through her body causing the excitation of her muscles andinhibition of her bronchioles.

D. Two are correct.

E. All are correct.

2. As Mary ran away she luckily lost the bear but sheran so fast that she tripped over a log of wood hitting her kneepretty hard and screaming “OUCH.” Which of the following correctlyexplain her efferent pathways which are taking the information backfrom her Central Nervous System to her motor neurons?

A. Her somatic motor neurons consist of several neuralpathways from the Central Nervous System to innervate the skeletalmuscle.

B. Her motor neurons consist of adrenergic receptors onits dendrites/ cell bodies which bind to neurotransmitters,adrenaline or noradrenaline

C. No more than ten of her muscle fibers are innervatedper motor neuron.

D. All of the above.

E. None of the above.

3. As Mary was on her way home she decided to go to thedoctor to make sure she didn’t get an infection from her fall. Whenshe got there the doctor first took her vitals. He told hereverything was fine with her leg but when he used a stethoscope tolisten to her heartbeat he heard a lub-dub-whistle. Which of thefollowing are correct?

A. Scar tissue has built up in her atrioventricularvalve which makes opening of the valve harder.

B. The murmurs of the heart occurs during systole as theheart is ejecting blood during contraction.

C. The blood is moving by what's called turbulentflow.

D. Two are correct.

E. All are correct.