human organs and their functions
Brain
Controls body functions, memory, emotions, and movement
Heart
Pumps blood throughout the body
Lungs
Take in oxygen and remove carbon dioxide
Liver
Filters toxins, produces bile, stores energy
Stomach
Breaks down food with acid and enzymes
Pancreas
Produces insulin and digestive enzymes
Small Intestine
Absorbs nutrients from food
Large Intestine
Absorbs water, forms and moves waste
Kidneys
Filter blood, remove waste, make urine
Bladder
Stores urine until it is released
Spinal Cord
Sends signals between the brain and body
Tongue
Helps with tasting, chewing, and speaking
Skin
Protects the body, regulates temperature, senses touch
Bones
Support the body, help with movement, protect organs
Reproductive Organs
Enable reproduction (testes for males, ovaries for females)
My note
I learned these organs are the reason we are alive
1 Heart is called the engine of the human body because it pumps blood.
2 The liver breaks down toxins, drugs, and alcohol using special enzymes. It filters the blood and turns harmful stuff into safer waste the body can get rid of.
3 The kidneys filter your blood to remove waste, balance water levels, and control salt and minerals. They also help regulate blood pressure and make hormones.
4 The small Intestine Absorbs nutrients. Tiny finger-like parts called villi and microvilli increase surface area so nutrients can pass into the blood easily.
5 We only need one brain because it controls everything centrally. But we have two lungs and kidneys as backups—to protect breathing and filtering if one side gets damaged.
6 Without insulin from the pancreas, sugar builds up in the blood. Cells can’t absorb it for energy, which can lead to high blood sugar, fatigue, and eventually diabetes complications.
7 Organs “talk” using hormones and nerves. For example, the brain signals hunger, the stomach digests, the pancreas releases insulin, and the liver stores sugar—it's a team effort.