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7th grade SC
Human Body Systems Review
Term | Definition |
---|---|
what is a group of cells that have a common function? | tissue |
what is tissue? | a group of cells that have a common function |
what is a group of tissue that work together to perform a task called? | a organ |
what is a organ? | a group of tissue that work together to perform a task |
what is the basic unit of life? | a cell |
what is a cell? | the basic unit of life |
what ia an organ system? | a group of organs grouped together |
what is the muscular system? | it has muscles that work with the bones to move parts of the body |
what is the nervous system? | it detects changes in the environment and signals these changes to the body, which then carries out a response |
what is the skeletal system? | it supports, protects, and works with muscles to move parts of the body |
what is the immune system? | it defends the body against infections |
what is the excretory system? | it removes liquid and gas wastes from the body |
what is the respiratory system? | it controls breathing. exchanges gases in lungs and tissues |
what is the digestive system? | it takes in food, breaks down food, absorbs nutrients, eliminates solid waste. |
what is the circulatory system? | it transports blood, nutrients, gases, and wastes. |
what gas do we remove from the air when we inhale? | oxygen (O) |
what gases do we add to air when we exhale? | carbon dioxide (CO2) and water (in the form of vapors) |
the energy we need to "keep going" comes from what? | the food we eat |
what is the circulatory system? | the circulatory system is the system that moves blood throughout the body |
what organs are part of the circulatory system? | it has the heart, blood, and blood vessels |
what is blood? | blood is a liquid mixture that includes red blood cells (which carry the oxygen to the parts of the body |
what does the heart do? | the role of the heart is to pump blood though the blood vessels |
what is the respiratory system? | the respiratory system is made up of two lungs and a series of passages that bring oxygen into the body and moves the CO2 out |