A high school student starts vomiting and goes to see the school ...

[DelorasTo]

A high school student starts vomiting and goes to see the school nurse. The student asks the nurse what part of his brain makes him vomit. What area of the brain will the nurse tell the student must be stimulated for vomiting to occur?
 
  A) Chemoreceptor trigger zone (CTZ)
  B) Forebrain
  C) Hypothalamus
  D) Thalamus

Question 2

Where are Alpha1-receptors found? (Select all that apply.)
 
  A) Blood vessels
  B) The iris
  C) Nerve membranes
  D) Urinary bladder
  E) Stomach sphincters

[bassamabas]

Answer to Question 1

A
Feedback:
The CTZ has to be stimulated in order for vomiting to occur. The GI mucosa, hypothalamus, and thalamus are not associated with eliciting vomiting. The forebrain, hypothalamus, and thalamus have no part in vomiting.

Answer to Question 2

A, B, D
Feedback:
Alpha1-receptors are found in blood vessels, in the iris, and in the urinary bladder. Alpha2-receptors are located on nerve membranes. Option E is a distracter.