Human Body Systems Lesson 1 Terms and Definitions.

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Presentation transcript:

Human Body Systems Lesson 1 Terms and Definitions

Organism Organism - A complete living thing. Example – members of plant and animal kingdoms. Humans, dogs, cats, plants, and more.

Body System Body System – is a group of organs that work together to perform a specific function. Example: The organs of the digestive system process food and prepare it for delivery to the body cells.

Organ Organ – is a group of different types of tissues that work together to perform a specific function. Example: Heart, Liver, Brain 2_52_19/HeartExterior01.jpg770a3d1b b b94112b39522Large.jpg

Tissue Tissue – is a group of similar cells that work together to carry out a specific function. Example: muscle tissue facilitates movement

Cell Cell – the smallest unit of an organism that can function independently. Example: epidermis skin cells (the outer most layer of skin cells).