PHYSIOLOGY
CARDIOVASCULAR PHYSIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
Which chambers contract in unison (together)?
|
|
Top chambers, then bottom chambers.
|
|
|
Right Chambers, then the Left Chambers
|
|
|
All four chambers beat in unison.
|
|
|
None of the above
|
Explanation:
Detailed explanation-1: -The sinus node prompts the upper chambers to contract first. Then, an electrical impulse is sent to a second cluster of cells (the atrioventricular node), which is found between the upper and lower chambers of the heart. The electrical impulse causes the lower chambers to contract.
Detailed explanation-2: -A typical heart has two upper and two lower chambers. The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart.
There is 1 question to complete.