Question

question 28
1 pts
cardiac output is determined by
stroke volume and blood pressure.
heart rate and blood pressure.
stroke volume and heart rate.
stroke volume and peripheral resistance.
question 29
1 pts
the vagus is said to act as a \brake\ on the heart. this situation is called
cardiac inhibition.
coronary inhibition.
vagal inhibition.
autonomic inhibition.
question 30
1 pts
_____ shock results from a condition in which infectious agents release toxins into the blood.
neurogenic
anaphylactic
septic
cardiogenic

Explanation:

• Question 28: Cardiac output ($CO$) is calculated by the formula $CO = stroke\ volume(SV)\times heart\ rate(HR)$. So it is determined by stroke volume and heart rate.
• Question 29: The vagus nerve (parasympathetic nerve) has an inhibitory effect on the heart. This is called vagal inhibition as it is related to the vagus nerve.
• Question 30: Septic shock occurs when infectious agents (like bacteria) release toxins into the blood. Neurogenic shock is due to nervous system damage, anaphylactic is due to allergic reactions, and cardiogenic is due to heart - related issues.

Answer:

• Question 28: stroke volume and heart rate.
• Question 29: vagal inhibition.
• Question 30: Septic.