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Title: Muscle definition and types
Description: Muscle definition and types pdf for physical therapy and medicines students
Description: Muscle definition and types pdf for physical therapy and medicines students
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2
THE MUSCLES
Muscle is a specialized tissue that has the ability
to contract & produce movements
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Skeletal muscles
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Smooth muscles
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Cardiac muscle
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Form the main bulk of the body
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They are under the control of will (voluntary)
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They move the skeleton
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Under the microscope, they show alternating light &
dark bands Striated
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Each muscle has 2 attachments: Origin (proximal
attachment) & Insertion (distal attachment)
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Origin is less mobile insertion is more mobile
4
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-Muscles of upper & lower limbs
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They are also called visceral or plain muscles
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They are involuntary & controlled by the autonomic
nervous system (ANS)
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No microscopic striations Unstriated
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Long spindle shape cells
6
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Smooth muscles functions:
1) Propelling contents
-Urogenital system
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7
3) Cardiac (involuntary – striated) muscle:
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...
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Direct attachment to bone or cartilage or indirect
attachments (3 ways):
1
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2
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Aponeurosis: A flat fibrous sheet
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Muscle fibers run obliquely to the line of pull of the muscles →
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Unipennate
Bipennate
Multipennate Circumpennate
Triangle
Temporalis11
1)
What are the different types of muscles?
2) Mention the different types of skeletal muscles
attachment to the bone?
3)
Discuss the skeletal muscle classification
according to the direction of muscle fibers
4) What are the functions of smooth muscles?
1) Skeletal, Smooth and Cardiac muscles
2) 1) Direct by fleshy fibres
2) Indirect
a) By tendons
b) By raphae
c) By aponeurosis
3) Parallel fibres
Oblique fibres: Pennate: unipennate
Bipennate
Multipennate and
circumpennate
Triangular
4) Propelling contents and mixing food with digestive juices
Title: Muscle definition and types
Description: Muscle definition and types pdf for physical therapy and medicines students
Description: Muscle definition and types pdf for physical therapy and medicines students