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The Human Body (Tissue (A tissue is a group of connected cells that have a…
The Human Body
Tissue
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Epithelial tissue
It is made up of cells that line inner and outer body surfaces. It protects the body, secretes hormones, and absorb nutrients. An example is skin
Muscle tissue
It is made up of cells that the ability to contract or become shorter. Muscles attached to bones enable the body to move. An example is the biceps
Nervous tissue
It is made up of neurons and nerve cells that carry electrical messages. An example is the brain and the nerves that connect it to the rest of the body
Organs
It is a structure that consists of two or more types of tissues that work together to do the same job
Lungs
The function of the lungs is to provide oxygen from inhaled air to the bloodstream and exhale carbon dioxide
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Cells
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Cell specialization is when a cell is assigned a specific role or job in the human body. Cell differentiation is when a cell becomes over time a more specialized cell type.
Stem cells are a type of undifferentiated cell that are able to differentiate into specialized cell types. They are important to humans because they are able to regenerate and repair damaged tissue. They can be used in bone marrow transplants and other procedures
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