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Human Body Systems-
human body systems
Question | Answer |
---|---|
Jobs of the skeletal system | structure, shape, protection, movement |
Jobs of the muscular system | structure, shape, movement |
Jobs of the respiratory system | take in oxygen, eliminate carbon dioxide |
Jobs of the circulatory system | transport oxygen & nutrients to the cells |
Jobs of the nervous system | send and receive messages from all parts of the body *controls all other body parts |
Jobs of the digestive system | break down food and provide nutrients to the cells |
Main parts of the respiratory system | lungs, trachea, air sacs |
Main parts of the circulatory system | heart, arteries (AWAY from heart), veins (TOWARDS heart), capillaries |
Main parts of the nervous system | brain, nerves, spinal cord |
Main parts of the digestive system | esophagus, stomach, small intestine, large intestine |
3 main types of bones | long, short, flat |
3 types of muscle | cardiac- heart smooth- organs skeletal- attached to bone |
Most active muscle in body | eye |
How many skeletal muscles do humans have? | Approximately 640 |
The trachea branches out in the lungs. At the end of each branch are tiny _______________. | air sacs |
Messages in the body are sent along _________. | nerves |
The ____________________ is a smooth bag of muscles that squeezes food and adds digestive juices. | stomach |
The ________________ carries food to the stomach. | esophagus |
The _______________________ is a tube of nerves that runs through your spine. | spinal cord |
Choose 2 body systems and explain how they work together in the human body. | *Answers will vary. Possible pairings of systems: skeletal & muscular respiratory & circulatory nervous & ANY other system digestive & circulatory |