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human body (organ (kidney (filter out dirty things from blood and urinate)…
human body
organ
: 2 or more types of tissue doing the same job
kidney
filter out dirty things from blood and urinate
heart
pump blood to the whole body parts
lungs
make people available to breath
cell
: most basic unit of structure and function in the body.
stem cells
useful?
cell specialization and cell Differentiation
when cells have a specific job of role in the human body is specialization but differentiation is the process of becoming specialized.
organ system
: Group of organs that work together to carry out complex functions
homeostasis : Maintain a stable internal environment
how organ systems work together to maintain homeostasis => for
respiratory
triggers faster breathing if oxygen needed,
Excretory
triggers water retention보유 by kidneys if dehydrated,
endocine
triggers insulin if too much sugar in blood.
tissue
: group of connected cells that have a similar function
Connective tissue
cells that form the body’s structure
such as bone and cartilage or blood
Muscle tissue
cells that can contract
Epithelial tissue
lining of the inner and outer body surfaces
such as Skin
Nervous tissue
neurons (nerve cells) that carry electrical signals
ex. brain and nerves