1. 1.04 Remember the structures of the muscular system

2. 1.04 Remember the structures of the muscular system
Essential Question
What are the structures of the muscular system?
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3. 1.04 Remember the structures of the muscular system
Comprises nearly half our weight.
Over 650 muscles.
Each muscle is made up of hundreds or thousands of muscle fibers.
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5. Structures of the muscular system
Muscles
Skeletal
Smooth
Cardiac
Sphincter
Connective tissue
Tendons
Fascia
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6. Structures of the muscular system
Types of muscle
Skeletal
Smooth
Cardiac
Sphincter
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7. Structures of the muscular system
Skeletal muscles
Attached to bone
Striated (striped) appearance
Voluntary
Multinucleated muscle cell bundles
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8. Structures of the muscular system
Smooth muscles
Also known as visceral muscles
Involuntary
Located in walls of digestive system, uterus & blood vessels
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9. Structures of the muscular system
Cardiac muscle
Found only in the heart
Striated, branched
Involuntary
Cells are fused- when one contracts, they all contract, creating the heartbeat
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10. Structures of the muscular system
Sphincter muscles
Also called dilator muscles
Special, circular muscles
Located in the
digestive system
urinary system
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11. Structures of the muscular system
Types of Muscle
Skeletal
Smooth
Cardiac
Sphincter
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12. Structures of the muscular system
Types of Connective tissue
Tendons
Fascia
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13. Structures of the muscular system
Connective tissue
Tendons
dense bands that connect skeletal muscle to the bone
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14. Structures of the muscular system
Connective tissue
Fascia
Fibrous connective tissue sheets that wrap around muscle bundles
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15. How do skeletal muscles get their names?
Location
Size
Direction
Number of origins
Location of origin and insertion
Action flexor
Extensor
Depressor
However,
not all muscles are named by the above methods!
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16. 1.04 Remember the structures of the muscular system
Head & Neck Muscles
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17. Torso/Trunk (anterior)
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18. Torso/Trunk (anterior)
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19. Torso/Trunk (posterior)
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20. 1.04 Remember the structures of the muscular system
Upper extremities
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21. 1.04 Remember the structures of the muscular system
Lower extremities
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22. The muscular system review Anterior view
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23. The muscular system review Posterior view
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24. 1.04 Remember the structures of the muscular system Essential Question
What are the structures of the muscular system?
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