Human Organ system
Definition:
Digestive system Helps in digesting food and giving energy to the body.
2. Respiratory system Helps us breathe in oxygen and breathe out carbon dioxide.
3. Circulatory system Helps in carrying blood, oxygen, and nutrients to all parts of the body.
4. Nervous system Helps us think, feel, and control our body actions.
5. Skeletal system Gives shape and support to the body and protects organs.
6. Muscular system Helps the body move and do work.
7. Excretory system Removes waste from the body.
Interesting points:
Digestive system – Your stomach can stretch to hold about 1.5 liters of food!
Respiratory system – You take about 20,000 breaths every day!
Circulatory system – Your heart beats around 100,000 times every day!
Nervous system – Your brain has more connections than there are stars in the Milky Way!
Skeletal system – Babies are born with more bones than adults because some bones join together as they grow.
Muscular system – Your strongest muscle is your jaw!
Excretory system – Your kidneys filter about 50 gallons of blood every day!
Main points:
Digestive system – Digests food and gives energy.
Respiratory system – Helps us breathe in oxygen and breathe out carbon dioxide.
Circulatory system – Carries blood, oxygen, and nutrients to all body parts.
Nervous system – Controls body actions and helps us think and feel.
Skeletal system – Gives shape, support, and protects organs.
Muscular system – Helps the body move.
Excretory system – Removes waste from the body.
Functions of all organs:
Brain – Controls thinking, feeling, and body movements.
Heart – Pumps blood and carries oxygen and nutrients to the body.
Lungs – Take in oxygen and remove carbon dioxide.
Stomach – Digests food and breaks it into nutrients.
Liver – Cleans blood, stores energy, and helps digest food.
Kidneys – Remove waste and extra water from the body.
Intestines – Absorb nutrients (small intestine) and remove waste (large intestine).
Skin – Protects the body and helps feel touch, heat, and cold.
Bones – Give shape, support, and protect organs.
Muscles – Help the body move.
Teeth – Cut, tear, and chew food.
Tongue – Helps taste, chew, swallow food, and speak.
Lips – Help in speaking, eating, and feeling touch.
Parotid gland – Makes saliva to help digest food.
Fun Fact:
Your heart beats about 100,000 times every day to keep you alive!