Tissues are groups of cells with a common structure (form) and function (job). There are four main tissues in the body – epithelium, muscle, connective tissue and nervous tissue.
Muscle Tissue Functions (jobs):
• Responsible for body movement
• Moves blood, food, waste through body’s organs
• Responsible for mechanical digestion
The 3 Types of Muscle Tissue:
1) Smooth Muscle
• found in organ walls and blood vessel walls
• involuntary (works without our control)
• spindle-shaped cells for pushing things along (blood, food, waste) through the body’s organs
2) Skeletal Muscle
• make up large body muscles
• voluntary (we control them)
• striated muscle packed in bundles and attached to bones for movement
3) Cardiac Muscle
• found in heart wall
• involuntary (works without our control)
• striated muscle with intercalated discs connecting cells for synchronized contractions during heart beat
