When Her Son Fails to Arrive Home as Expected,Elena Fears

question 15

Multiple Choice

When her son fails to arrive home as expected,Elena fears he has been in an accident.Both her heart and respiration rate remain elevated until she sees him come safely through the door.Her body soon returns to normal due to the action of her ________ nervous system.

• A) parasympathetic
• B) sympathetic
• C) central
• D) somatic

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