what is the effect of vagal nerve stimulation on heart rate What is the effect o

Question

what is the effect of vagal nerve stimulation on heart rate What is the effect of vagal nerve stimulation heart rate? Does the vagal nerve represent parasympathetic or sympathetic nervous system influence on the heart a. Decrease in heart rate, Parasympathetic b. Increase in heart rate, Sympathetic c. Decrease in heart rate, Sympathetic d. Increase in heart rate, Parasympathetic The left ventricle has a thicker myocardium than the right ventricle in order a. Pump blood through a smaller blood vessel b. Pump blood with greater pressure c. Get the blood to the lungs in sufficient time for oxygenation d. Accommodate a greater volume of blood e. Pump a greater volume of blood

Explanation / Answer

2.a. Parasympathetic innervation of the heart is partially controlled by the vagus nerve and is shared by the thoracic ganglia. Vagal nerves mediate the lowering of the heart rate. .

3.b.This is because the left ventricle has to pump blood all the way around the body, but the right ventricle only has to pump it to the lungs. The blood in arteries is under higher pressure than blood in the veins.The left ventricle is thicker and more muscular than the right ventricle because it pumps blood at ahigher pressure.

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

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