3 Muscle Types

Description and Diagram of the 3 Muscle Types



Cardiac Muscle- Involuntary
The cardiac muscle is located in the walls of the heart.
Function: The cardiac muscle is responsible for pumping blood throughout the body.
Structure:
-Partially striated
-Branched
-Mononucleated



Smooth Muscle- Involuntary
The smooth muscle is located in the walls of internal organs (stomach, intestines, bladder, blood vessels...etc.)
Function: movement of contents in the internal walls of organs, changes in the diameter of blood vessels and airways.
Structure:
-Non-striated
-Mononucleated
-Spindle-shaped
-Unbranched


Skeletal Muscle- Voluntary
The skeletal muscle is attached to bones or skin.
Function: Heat production, posture, movement
Structure:
-Cross striated
-Multinucleated
-Unbranched

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