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Learn about skeletal, cardiac, and smooth muscles - their physical characteristics, movements, locations, and functions in the body. Discover how muscles produce movement, maintain posture, stabilize joints, and generate heat.
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(1) Types of Muscle • Skeletal • Cardiac • Smooth
Cardiac Muscle Skeletal Muscle Smooth Muscle
(2) Skeletal Muscle • Physical Characteristics: • Long cells • Whole muscle has striations • Type of Movement: • Voluntary • Allows overall body mobility • Contracts fast w/great force, tires fast also • Location: • On top of bones & connecting them
(3) Cardiac Muscle • Physical Characteristics: • Branched cells • Whole muscle has striations • Types of Movement: • Involuntary • Steady, consistent movement • Heartbeat (rate gauged by nervous system) • Location: • heart
(4) Smooth Muscle • Physical Characteristics: • Long cells • Whole muscle NOT striated • Type of Movement: • Involuntary • Slower, yet consistent movement • Forces fluids & solids through channels • Location: • Digestive & excretive organs • Respiratory passageways
(5) Muscle Function • Produce movement • Bones = attachment points • Internal organs (move nutrients, waste, etc.) • Maintain posture • Unique to Bipedalism • Stabilize joints • Allows for wider range of movement and use of force • Generate heat • During contraction