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notes on Body organization and homeostasis

100 trillion cells!!!!

An average adult contains

Different to preform certain functions

Many of the cell are


groups of cells that look alike and preform similar functions

Epithelial tissue

covers and protects both the INTERNAL and EXTERNAL suface of the body

muscle tissue

provides movement such as walking, beating of the heart, etc.

Nerve tissue

helps you respond to stimuli in the environment, cordinate body activities and movement, keeps us informed about our surroundings

connective tissue

support bind and join together various other tissues.

blood and fluid surrounding cells

help distribute nutrients

fat, bone, and cartilage

are three other types of connective tissue


groups of different types of tissue that work together. ex. eyes lungs liver skin stomach et.


organs that work to perform a specific function ex. skeletal muscular circulatory excretory digestive endocrine etc.


the process by which an organisms internal environment is kept STABLE in spite of changes in the external environment


teh reaction of your body and mind to threatening challenging or disturbing events

stress does what to homeostasis?

upsets it

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