Rock 'N Learn: Human Body | movie | 2009 | Official Trailer - video Dailymotion

This entertaining approach to the human body engages young, inquisitive learners, while the depth of material gets older | dG1fRTNsY2F0TG43VzQ

Transcript

00:00 [Music]

00:04 Isn't blood part of the circ...circu...

00:08 Circulatory system?

00:10 Yeah, that one!

00:12 [Music]

00:15 The circulatory system is an organ system that moves nutrients, gases and wastes to and from cells.

00:22 The circulatory system is also called the cardiovascular system.

00:28 It includes the heart, the blood and blood vessels.

00:32 Blood is the fluid that circulates around the body,

00:35 bringing to your cells the nutrients and gases your body needs.

00:40 Blood also gets rid of the waste your cells produce.

00:43 Wow, blood is pretty important!

00:46 But wait, there's more!

00:48 Some cells in the blood help fight diseases,

00:50 and the circulating blood also helps maintain your body temperature.

00:55 The heart is the main engine of the circulatory system.

00:59 It's a large muscle made of four different chambers,

01:03 two on the right and two on the left.

01:06 The right side of the heart pumps deoxygenated blood into the lungs,

01:11 so that carbon dioxide can be dropped off and oxygen can be picked up.

01:16 The left side of the heart pumps the oxygenated blood all the way to the rest of the body.

01:22 That's why the left side of the heart is bigger than the right.

01:27 It has to work harder.

01:29 Are there any other parts of the circulatory system?

01:32 I'm glad you asked.

01:33 The arteries and veins are tube-like vessels.

01:37 Arteries take blood from the heart, and veins bring blood back to the heart.

01:43 And each time the blood circulates from the heart out to the body,

01:47 about 20% of it goes through the kidneys.

01:51 The kidneys filter out some of the waste before the blood heads back to the heart.

01:56 The kidneys are actually part of the urinary system.