Circle the correct answer if two possibilities are given. During a stress respon

Question

Circle the correct answer if two possibilities are given. During a stress response the heartrate generally increases/decreases due to stimulation by the parasympathetic/sympathetic nervous system. This stimulation is effected through a short/long preganglionic fibers that release the neurotransmitter ________ _____to stimulate nicotinic/alpha-1 receptors. Then short/long post-ganglionic fibers terminate in the heart where they release the neurotransmitter ___________ to stimulate muscarinic/beta-1 receptors.

Explanation / Answer

1. Heart rate increases

2. Stimulation by the sympathetic nervous

3. Through a short preganglionic fibers

4. Neurotransmitter acetyl choline to

5. Stimulate nicotinic receptors

6. Then long post ganglionic fibers

7. Neurotransmitter noradrenaline

8. Stimulate muscarinic receptors

The sympathetic pathway activates in the presence of stress, which causes the release of noradrenaline which is also used as a drug to raise the blood pressure.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.