Tissues

All living things are made up of cells. In Multicellular organisms, cells get toghether in different types: muscle cells, nerve cells, bone cells, blood  cells, etc. They make tissue:

BONE TISSUE

NERVE TISSUE

MUSCLE TISSUE

PLANT TISSUE

SKIN TISSUE

Organs are made of tissue. For example:

• muscle tissue is used to make the abdominal muscles, the biceps, the heart, the iris, etc.
• Nerve tissue is used to make the brain, the spinal cord, etc.