THORAX ABDOMEN AND PELVIS

MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The ____ septum is made mostly of the ____ ventricle because ____
A
Interventricular, Right, houses large portion of conduction system
B
Interarterial, Left, houses large portion of conduction system
C
Interventricular, Left, houses large portion of the conduction system
D
Interventricular, Left, houses pectinate muscle
Explanation: 

Detailed explanation-1: -The interventricular septum is a complex structure composed of muscular and fibrous tissue.

Detailed explanation-2: -The walls of the ventricles begin to expand by around week 4 of embryonic development, forming the interventricular septum. The four heart chambers form by the end of week 7. However, congenital heart abnormalities may occur if the heart does not twist or divide normally.

Detailed explanation-3: -The interventricular septum is quite dynamic during each cardiac cycle. It contracts with the ventricles during systole such that it shortens longitudinally (from the base to the apex) and becomes thicker.

There is 1 question to complete.