Types of Muscle:

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Types of Muscle
-striated -multinucleate -voluntary
Skeletal
-striated -mononucleate -intercalated
disks -involuntary
Cardiac
Smooth
-spindle-shaped -mononucleate -involuntary
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Skeletal Muscle Architecture
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Skeletal Muscle Architecture
Muscle
Connective tissue Epimysium Around the
muscle Perimysium Around bundles of muscle
fibers Endomysium Around each Muscle fiber
(cell)
Muscle bundles
Muscle fibers Muscle cell
Myofibril
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Muscle Fiber (Muscle cell)
T-system Transverse tubule
Sarcolemma
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Structures within the muscle fiber
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The myofibril
Repeating variation
E.M. designations
Thick and thin filaments make up the myofibril
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Patterns of movement by muscle teams
Flexors/ extensors Sphincters/dilators Levators/de
pressors Retractors/protractors Abductors/adductor
s Pronators/supinators
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Muscles of a shark
Axial musculature
Appendicular musculature
Hypobranchial musculature
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Muscles of the eyeball
(lateral)
(medial)
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Musculature of a gill arch of a shark
(Branchiomeric muscles)
(4)
(2)
(3)
(1)
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Trunk musculature of a urodele note epaxial
muscles
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Trunk musculature of an alligator
(2)
Epaxial
(1)
Hypaxial
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Trunk musculature of a urodele note hypaxial
muscles
(1)
(2)
(3)
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Trunk musculature of an alligator
(2)
Epaxial
(1)
Hypaxial
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