Animal Tissue Types

Animal Tissue Types

Epithelial Tissue

• Sheets of densely packed cells
• Covers outside of body and organs
• Protection
• Physical damage
• Disease
• Water-loss
• Interacts with environment Example: Epithelium lines small intestines. It secretes digestive fluid and absorbs nutrients

Nervous Tissue

• Movement of information
• Neurons: specialized cells that make up the nervous system
• Neurons receive and transmit impulses
• Glial Cells: support neurons

Muscle Tissue:

• Three main types
• Skeletal Muscle: allows voluntary movement Example: Lifting your arm
• Smooth Muscle: Involuntary movement Example: Stomach churning to digest food
• Cardiac Muscle: forms the heart muscle Example: Heartbeats