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the human body (tissue (tissue:
group of connected cells that have a…
the human body
tissue
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epithelial tissue:
lining of the inner and outer body surfaces
ex.
-skin, lining of digestive tract
-protection
-secretes substances
(hormones)
-absorbs (nutrients)
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muscle tissue:
ex.
-Allows for movement
-Smooth, cardiac, skeletal
organs
organs:
a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
heart:
is an organ that pumps blood throughout the body via the circulatory system, supplying oxygen and nutrients to the tissues and removing carbon dioxide and other wastes
small intestine:
90% of the digestion and absorption of food occurs, the other 10% taking place in the stomach and large intestine. The main function of the small intestine is absorption of nutrients and minerals from food.
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Gallbladder:
collects all the greasy food substances before getting to ur stomach so it doesn't cause you to use the bathroom right away
cells
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Stem Cells:
cells that can give rise to different, specialized cells
useful to humans:
all cells start off as stem cells that develop into all variety cells in body
organ system:
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The nervous and endocrine systems exert the ultimate control over homeostasis because they coordinate the functions of the body's systems
homeostasis:
the ability to maintain a constant internal environment in response to environmental changes