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11.1: Organization of the Human Body

Difficulty Level: At Grade Created by: CK-12
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Vocabulary

cardiovascular system

cardiovascular system

Organ system made up of the heart, blood, and blood vessels.
cells

cells

Basic unit of structure and function of a living organism; the basic unit of life.
connective tissue

connective tissue

Group of cells that are all involved in supporting and binding other tissues of the body; i.e. tendon, cartilage, bone, and blood.
epithelial tissue

epithelial tissue

Layers of tightly packed cells that line the surfaces of the body.
hormone

hormone

A chemical messenger molecule.
muscle tissue

muscle tissue

Bands of cells that contract and allow movement.
nervous tissue

nervous tissue

Group of nerve cells that sense stimuli and transmit signals; found in brain, spinal cord, and nerves.
organ

organ

Structure made of two or more tissues that work together.
organ system

organ system

Organs that work together to serve a common purpose.
tissue

tissue

Group of similar cells working together.

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Description

Difficulty Level:

At Grade

Grades:

7 , 8

Date Created:

Nov 29, 2012

Last Modified:

Mar 22, 2015
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