Which branch of the ANS would predominate if you were lying on the beach relaxin
ID: 3514071 • Letter: W
Question
Which branch of the ANS would predominate if you were lying on the beach relaxing and enjoying the sun and sound of the waves? 1. 2. Which branch would predominate if you were on a surfboard and a large shark appeared within a few feet of you? 3. Name the division of the ANS that does each of the following? increases digestive activity- increases blood pressure- dilates bronchioles (airways in lungs) decreases heart rate- stimulates the adrenal medulla to release its hormones- 4. Which nerve is responsible for the parasympathetic innervation of the lungs, heart, stomach, liver, pancreas, and parts of the small and large intestines? 5. What neurotransmitter is released by all parasympathetic neurons? 6. What physiological changes would you expect in a patient who is about to undergo a dental root canal and is very anxious about the procedure? 7. Luke has a beain tunor that is interfering with the function of his hypothalamus. Explain why this tumot would interfere with autononic functionExplanation / Answer
1. The parasympathetic branch of the ANS ( autonomous nervous system) would predominate if you were lying on the beach and enjoying the sun and sound of waves.
2. When you see a danger (shark) the sympathetic branch of the ANS predominates.
3. The division of the ANS that does each of the following:
Increases digestive activity- it is parasympathetic
Increases blood pressure- it is sympathetic
dilates bronchioles- it is sympathetic
Decreases heart rate- it is sympathetic
Stimulates the adrenal medulla to release is hormones- it is sympathetic.
4. The vagus nerve is responsible for the parasympathetic innervation of the lungs,heart, stomach,liver, pancreas and parts of the small and large intestine.
5. In the parasympathetic division, the primary neurotransmitter is acetylcholine. The neurons are cholinergic.
In the sympathetic division, epinephrine and norepinephrine are the neurotransmitters. The neurons are mostly adrenergic.
6. The physiological changes occur while doing a root canal treatment-
It increases heart rate ,blood pressure and rate of breathing.
Dry mouth
Dilated pupils.
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