Question

Like the one in the nose, this is in the heart as a dividing membrane in the ventricle

A) Septum
B) Tendon
C) Ventricle
D) Valve

Answer 1

The correct answer is A) Septum.

The septum is a dividing membrane in the heart, just like the one in the nose. Tendons are connective tissues that attach muscle to bone. Ventricles are the lower chambers of the heart. Valves are structures that control the flow of blood in the heart.

Therefore, only septum fits the description of a dividing membrane in the heart.

Answer 2

The dividing membrane in the heart's ventricles is known as the septum, which includes both the interatrial and interventricular septa. The correct option is A.

Step-by-step explanation:

The dividing membrane in the heart's ventricles is known as the septum, similar to the septum in the nose that divides the nasal cavity into two parts. The septum in the heart is a crucial anatomical structure, which includes the interatrial septum between the atria, and the interventricular septum between the ventricles.

These septa are extensions of the myocardium lined with endocardium. The interatrial septum in an adult heart usually features the fossa ovalis, which is a remnant of the fetal heart's foramen ovale, an opening that allowed blood to bypass the pulmonary circuit.

The atrioventricular septum is located between the atria and the ventricles and is marked by the presence of the atrioventricular valves (tricuspid and bicuspid, or mitral valves) and the semilunar valves (at the bases of the pulmonary trunk and aorta).

Therefore, the correct option is A.