chichin85

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0:51 REPRODUCTION chichin85 665,146 views 4 years ago The male and female reproductive systems are designed to create life. Deep inside the woman, in her ovaries, one egg develops each month. From the man's testes, throu...
0:49 DIGESTION chichin85 32,918 views 4 years ago To nourish the body, the digestive system breaks down food into nutrient molecules, absorbs them into the blood stream, and eliminates food by-products. Food moves from ...
0:56 RESPIRATION chichin85 17,831 views 4 years ago The respiratory system provides oxygen to the body's cells, and removes carbon dioxide Air containing oxygen, enters the body through the nose and mouth, travels throug...
1:07 CIRCULATION chichin85 769,071 views 4 years ago The circulatory system consisting of the heart, arteries, capillaries, and veins, is the pumping mechanism that transports blood throughout the body. In the heart, the l...
1:08 INFECTION FIGHTERS chichin85 29,989 views 4 years ago Your body's immune system has several defensive ploys to attack and destroy unwelcome and potentially harmful microscopic invaders. The first defense is the skin and l...
0:52 SMELLING AND TASTING chichin85 42,079 views 4 years ago If you can't smell, you probably can't taste very well either. They are closely related functions. Receptor cells for taste and smell are located in the mouth and nose,...
1:02 HEARING & Balance chichin85 65,545 views 4 years ago Both hearing and balance occur within the ear. In hearing, sound waves pass from the outer ear into the auditory canal. They strike the eardrum, making it vibrate. ...
0:59 SEEING chichin85 6,579 views 4 years ago When light waves pass through the eye they bend, and create electrical impulses that are sent to the brain, which interprets them as colors and shapes. It's called seeing....
0:59 Locomotion chichin85 33,307 views 4 years ago We can stand, sit, and move because of the musculoskeletal system—206 bones, 600 muscles, and more than 1,200 joints. Muscle movement requires the cooperation of both t...
1:11 SKIN, HAIR, AND NAILS chichin85 58,022 views 4 years ago The visible part of your skin, hair, and nails is mostly dead. The surface is the final resting place for cells that once grew below. The skin is the body's largest o...

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About chichin85

by chichin85

Latest Activity

Oct 22, 2007

Date Joined

Dec 6, 2006

Age

27

Country

Chile

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