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Answer:
The muscular system is primarily composed of three types of muscle tissue, but two major types are often highlighted due to their distinct roles and characteristics:
[tex]• \text {Skeletal Muscles}[/tex]
[tex]• \text {Smooth Muscles}[/tex]
• Function: Responsible for voluntary movements of the body, such as walking, running, and lifting objects.
Control: Voluntary control through the somatic nervous system.
• Location: Attached to bones by tendons.
• Structure: Striated appearance due to the arrangement of actin and myosin filaments. These muscles are multinucleated.
• Function: Responsible for involuntary movements within the body, such as the contraction of blood vessels, movement of food through the digestive tract, and regulation of airflow in the lungs.
• Control: Involuntary control through the autonomic nervous system.
• Location: Found in the walls of internal organs and structures such as the stomach, intestines, blood vessels, and airways.
• Structure: Non-striated appearance, spindle-shaped, and typically have a single nucleus per cell.