How the Body Works : Inside the Heart

Inside the Heart

The heart is a muscular pumping organ which beats nonstop to circulate blood around the body. It functions as two halves, each consisting of a holding chamber, or atrium, and a pumping center, or ventricle. After circulating around the body, blood, now deoxygenated, returns to the right atrium through large veins, the superior vena cava and the inferior vena cava. When the atrium is full, blood is forced through the tricuspid valve into the right ventricle. It is then pumped to the lungs through the pulmonary valve into the pulmonary artery. The oxygenated blood returns via the pulmonary veins to the left atrium. After flowing through the mitral valve it is pumped out of the left ventricle into the aorta to return to the general circulation.

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[linkanator126]

Watch Osmosis Jones.

[fusi0n556]

@Theitzybitzy im afraid its not all scrubs or greys anatomy

[Natasha8xox]

this helped me so much understanding the heart for my biology gcse in ten days......revision tips anyone????

[jellybeangravy]

@thunderinthevalley It's like if you drew it on some paper and held it up to yourself. The right would be your left and the left would be your right.

[anaxstasis1]

he forgot also the coronary sinus, which drain blood from the muscles of the heart

[thunderinthevalley]

why is the left on the right?

[tishlinda]

Heart matters, ahh! I've never been good at those, =(

[Crozersiscool]

 but sounds like steven hawking

[wwwtotalitaerde]

Open murders by the German BND which is the renamed GESTAPO:

Uwe Barschel(politician),Jürgen Möllemann(politician),Heiner Gehring(author),Martina Pflock(political activist),Tron (internet activist),Karl Koch(political/internet activist),Bernd Seiffert(human rights activist),Kirsten Heisig(author/judge),Fritz Bauer(persecutor of the Frankfurt Auschwitz processes),Markus Bott(human rights activist).

See my channel.

BND snitchers are thumbing me down.Thumbs up if you want the BND stop murdering

[MysticalFlyingMonkey]

@fusi0n556 WTF?! My whole life has been a lie!!

[quiet451]

i hate pharmacy school