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The Human Body (Cells (Cell Specializaton (When Cells have a specific job…
The Human Body
Cells
Most Basic unit of structure, and function in the body.
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Organs
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Skin
Protect inside organs, keep in heat and water
Organ Systems
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All the organ systems in the human body work together to maintain homeostasis getting the nutrients the body needs to function.
Tissue
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Four Types
Connective Tissue
Cells that form the body's structure ex: Bone, Cartilage, Blood.
Muscle Tissue
Cells that can contract, allows movement. ex: Smooth, Cardiac, Skeletal
Epithelial Tissue
Lining of the inner and outer surfaces. ex: Skin, lining of digestive tract.
Nervous Tissue
Neurons that carry electrical signals. ex: Brain, spinal cords, nerves.