Human Body · 人體器官

All organs at a glance

目前顯示 國中 程度的說明。

Windpipe/ˈwɪndpaɪp/氣管Respiratory

The windpipe, or trachea, is the tube that carries air from your throat to your lungs. Rings of cartilage keep it open.

The windpipe divides into two tubes, one going to each lung.

Lungs/lʌŋz/肺Respiratory

The lungs are a pair of organs that take oxygen from the air and pass it into the blood. At the same time they remove carbon dioxide from the blood.

Smoking damages the lungs and makes it harder to breathe.

Kidneys/ˈkɪdniz/腎臟Urinary

The kidneys filter waste and extra water out of the blood to make urine. They also help control blood pressure.

A person can live a normal life with only one kidney.

Liver/ˈlɪvər/肝臟Digestive

The liver cleans the blood, stores energy, and makes a liquid called bile that helps you digest fat.

The liver can repair itself after part of it is damaged.

Stomach/ˈstʌmək/胃Digestive

The stomach is a bag-like organ that breaks food down. It mixes food with acid and juices until it becomes a thick liquid.

Food stays in the stomach for two to four hours before moving on.

Large intestine/ˌlɑːrdʒ ɪnˈtestɪn/大腸Digestive

The large intestine absorbs water and salts from what is left of your food. What remains becomes waste that leaves the body.

Helpful bacteria live in the large intestine and make some vitamins for you.

Small intestine/ˌsmɔːl ɪnˈtestɪn/小腸Digestive

The small intestine is a long, folded tube where most digestion happens. Nutrients pass through its walls into the blood.

The small intestine is about six metres long, but it folds up to fit inside you.

Bladder/ˈblædər/膀胱Urinary

The bladder is a stretchy bag that stores urine from the kidneys until you are ready to empty it.

An adult bladder can hold about half a litre of urine.

Heart/hɑːrt/心臟Circulatory

The heart is a muscle that pumps blood around the body. The blood carries oxygen and nutrients to your cells and takes waste away.

Your heart beats about 100,000 times a day.

Brain/breɪn/大腦Nervous

The brain is the control centre of the body. It sends and receives signals through the nerves, and it controls thinking, memory and movement.

When you touch something hot, your brain tells your hand to move away.