MUSCLE NERVE CARTILAGE BONE
PERIPHERAL NERVE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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slows the heartbeat down
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increases blood flow to the digestive tract to help digest food
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dilates the pupils to improve distance vision
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speeds the heartbeat up
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contracts the pupils to improve close vision
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Detailed explanation-1: -This can include control of your heart rate, blood pressure, digestion, urination and sweating, among other functions.
Detailed explanation-2: -The iris sphincter is innervated by the parasympathetic nervous system, the part of the autonomic nervous system that is involved in homeostasis (i.e. keeping the body in stable condition); the link between pupil constriction and the parasympathetic nervous explains why pupils are relatively small at rest.
Detailed explanation-3: -Stimulation of the cranial parasympathetic system results in the constriction of the pupil and increased lens curvature, while stimulation of the spinal sympathetic system results in the dilation of the pupil.
Detailed explanation-4: -The parasympathetic system is responsible for stimulation of “rest-and-digest” or “feed and breed” activities that occur when the body is at rest, especially after eating, including sexual arousal, salivation, lacrimation (tears), urination, digestion, and defecation.