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Human Body Vocabulary GLE 0507.4.1 Describe how genetic information is passed from parents to offspring during reproduction Cell The basic unit of structure and function of living things Cell Membrane The thin covering that surrounds every cell Circulatory System The organ system that transports oxygen, nutrients, and wastes throughout your body Cytoplasm The jellylike material inside a cell between the cell membrane and the nucleus Digestive System The organ system that takes nutrients from food Excretory System The organ system that removes liquid waste from the body Microscopic Too small to be seen without using a microscope Muscular System The organ system that includes muscles and tendons that move bones Nervous System The organ system that senses your surroundings and controls other organs Nucleus The part of the cell that directs all of the cell’s activities Organ A group of tissues that work together to perform a certain function Organ System A group of organs that work together to do a job for the body Protist A single celled organism with a nucleus and organelles Respiratory System The organ system that exchanges oxygen and carbon dioxide between the body and the air Skeletal System The organ system that protects the body and gives it structure Tissue A group of cells that work together to perform a certain function Web Sites How the Body Works Human Body ThinkQuest Systems of the Human Body Lesson Virtual Body