Question

1. read to me

the wall between the right and left atria is called the ____.
worth 4.000 points.
a. interventricular septum
b. interatrial septum
c. endocardium

1. read to me

which valves are at the ventricular outlets?
worth 4.000 points.
a. av
b. cusp
c. semilunar

Explanation:

Question 5

To solve this, we analyze each option:

• Option A: Interventricular septum is the wall between the right and left ventricles, not atria. Eliminate A.
• Option B: Interatrial septum is the wall separating the right and left atria. This matches the question.
• Option C: Endocardium is the inner lining of the heart chambers, not the wall between atria. Eliminate C.

Analyze each option:

• Option A: AV (atrioventricular) valves are between atria and ventricles, not at ventricular outlets. Eliminate A.
• Option B: Cusp is a part of a valve (like in AV or semilunar valves), not the type of valve at ventricular outlets. Eliminate B.
• Option C: Semilunar valves (pulmonary and aortic) are located at the ventricular outlets (where blood leaves the ventricles). This is correct.

Answer:

B. Interatrial septum

Question 6