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Home Q & A Board Biology-Related Homework Help Medicine Emergency Medical Care
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fstiles93 fstiles93
wrote...
Posts: 521
Rep: 2 0
6 years ago
Excessive stimulation of the vagus nerve may result in:
 
  a. Hypertension
  b. Bradycardia
  c. Tachycardia
  d. Ventricular tachycardia

Question 2

What is the MOST common mechanism of abdominal injury?
 
  A) Blunt trauma B) Pelvic trauma
  C) Vascular trauma D) Penetrating trauma

Question 3

The gray matter on the surface of the brain is called the _____.
 
  Fill in the blank(s) with correct word

Question 4

The _____ is considered the pacemaker of the heart.
 
  A) sinoatrial node
   B) atrioventricular node
   C) Purkinje fiber
   D) bundle branch
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Replies
wrote...
#1
6 years ago
Answer to q. 1

b
Rationale: a. Excessive vagal stimulation would result in hypotension
b. Correct. Stimulation of the vagus nerve results in the release of acetlycholine, the primary neurotransmitter of the parasympathetic nervous system. This results in opposition of the sympathetic nervous system and causes a decrease in the cardiac rate, or bradycardia
c. Stimulation of the vagus nerve would result in bradycardia
d. Stimulation of the vagus nerve results in asystole, not ventricular tachycardia

Answer to q. 2

A

Answer to q. 3

cortex

Answer to q. 4

A
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