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MMS Pearson HB
Human Body introduction
Term | Definition |
---|---|
cell | basic unit of life |
tissue | group of similar cells that perform the same function |
muscle tissue | tissues that contract and shorten that help movement in your body |
nervous tissue | tissue that carries electrical messages between the brain and other parts of the body |
connective tissue | tissue that provides support and connects all body parts |
epithelial tissue | tissue that covers the surface of your body |
organ | a structure that is made of different kinds of tissue |
organ system | a group of organs working together |
joint | place where two bones come together |
absorption | molecules diffusing into the bloodstream |
gland | organs that release chemical signals into the blood |
stimulus | a signal in the environment that makes you react |
response | the reaction to the stimulus |
hormone | chemicals that affect body processes |
homeostasis | the condition in which an organism's internal environment is kept stable |
stress | the reaction of your body to possibly threatening, challenging, or uncomfortable events |
respiration | burning food with oxygen to release energy |
diffusion | the movement of molecules from where there are many to where there are few |
tendon | connective tissue that attaches muscle to bone |
ligament | connective tissue that attaches bone to bone |
alveoli | sac like tissues in the lungs that allow absorption of oxygen |
villi | finger like tissues in the small intestion that allow absorption of food |