What part of the heart pumps blood?

Answer 1

A combination of things causes the heart to pump and several conditions can interfere with the heart pumping. However, the left ventricle is the workhorse of the heart. It is said, in figuring comparisons, the heart can shove a steamship up on the beach it is so strong.

We have 3 electrical nodes (to simplify explanation) in the heart, one at the top, one at the bottom, one in the middle. Electrical impulses travel from one to the other causing the heart impulses. It is said heart muscle will beat on its own even in a lab setting it is so "electrical". As the heart depolarizes from these nodes it "beats".

We all have a natural "pacemaker", located in the right atrial wall of the heart. This "pacemaker" sets the heart's "sinus rhythm" of 70-80 bpm. Heart muscle is different from any other in the body.

Answer 2

Let's start at the inferior and superior vena cava. They carry O2 poor blood into the right atrium which then flows to the right ventricle through the tricuspid valve. The right ventricle pumps the blood through the pulmonary semi-lunar valve to the pulmonary artery. It then travels to the lungs so gas exchange can happen and the blood is now O2 rich. It goes back to the heart through the pulmonary vein and into the left atrium. The blood then flows to the left ventricle through the bicuspid valve. Then it goes to the Aorta through the aortic semi-lunar valve and travels to the rest of the body. After the blood is done in the body in goes to the superior and inferior vena cava and it starts all over again.

If you have any questions, just ask me!

Answer 3

The left ventricle.

Answer 4

the right ventricle

Answer 5

Ventricles or the lower part.

Answer 6

all of it