Tissues make up organs

• Epithelial Tissue
• Connective Tissue
• Muscle Tissue
• Nervous Tissue

Epithelial Tissue

Properties of Epithelium

• non vascular
• cells close together
• cells reproduce rapidly
• epithelium jobs: lines, protects, secretes, allows diffusion

Connective Tissue

Characteristics of CT

• Except for cartilage, c.t is vascular
• cells spaced apart
• space between cells filled by a matrix
• matrix can be fibrous , liquid (blood), gel-like, solid (bone)
• main job: support and connection of tissues to form functional organs

Muscle Tissue

types of muscle

• cardiac: heart muscle moves blood
• skeletal: connect bones to move body
• smooth:  moves food through digestive tract
• involuntary:  cardiac and smooth muscle
• striated: cardiac and skeletal muscle

Nervous Tissue

neurons and glial cells make up nervous tissue