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Human Body Systems & Organization Levels
the basic units of structure and function within the human body
a group of specialized cells that work together to perform the same function
structures that are composed of 2 or more different kinds of tissue
a group of 2 or more organs that work together to perform a specific function
transports blood to all parts of the body throughout the body
provides gas exchange (O2 & CO2) between the blood and the air
breaks down foods into nutrients that can be used by the body, absorbs nutrients, & rids body of solid wastes
filters out cellular wastes, toxins, and excess water resulting from cellular respiration
receives & interprets stimuli from inside & outside the body to intitiate responses for survival
provides support for the body, protects internal organs, & provides attachment sites for muscles
skin, provides protection from infection & injury, prevents loss of water, helps regulate body temperature, & gets rid of waste