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2-8 The Human Body - Systems

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All living things are made of cells.  You also know there are many different kinds of cells.  Blood cells are different than hair cells and skin cells are different than the cells that make up your lungs.

A lot of cells of the same kind form what is called tissue.  Tissues working together form organs.  Your lungs, heart, and brain are some of the most important organs in your body.

cells

tissues

organs

Some tissues and organs work together.  This is called a system.  Do you remember learning about the digestive system?  The parts that work together to form the digestive system are the mouth, teeth, tongue, stomach, and the intestines.

cells

tissues

organs

systems

Directions: Answer the questions below about cells, tissues  organs, and systems.

A lot of cells working together form tissue
cells
organs
Tissues working together form tissue
cells
organs
Tissues and organs working together form a tissue
system
tissue system
Your lungs, heart and brain are tissues
cells
organs
Your teeth and tongue are part of the digestive system
cells
organs
Your skull and bones are part of the skeletal tissues
cells
system

 

 

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Blood Cells, Tissue, and Organs