肌肉组织 The Muscle Tissue 1.Skeletal muscle (No.9)(Drawing) 2.Cardiac muscle (NO.10) 3.Smooth...
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Transcript of 肌肉组织 The Muscle Tissue 1.Skeletal muscle (No.9)(Drawing) 2.Cardiac muscle (NO.10) 3.Smooth...
肌肉组织
The Muscle Tissue
1.Skeletal muscle (No.9)(Drawing)
2.Cardiac muscle (NO.10)
3.Smooth muscle (NO. 1)
20150402
Connective tissue coverings (responsible for force transduction):
Epimysium:surround the entire muscle
Perimysium: surround a muscle bundle
Endomysium: surround individual muscle cells
Skeletal muscle
Skeletal muscle: HE X100
Skeletal muscle: HE X100
Skeletal muscle:HEX400
Perimysium
Endomysium
Muscle fiber
Peripherally situated nuclei
myofibrils
Skeletal muscle: HEX400
Long cylindrical cell
Multinucleate
Dark bands-A
Light bands-I
Cardiac muscle
Endocardium
Myocardium
Epicardium
Purkinge fibersendocardium
myocardium
Cardiac muscle:HEX100
Intercalated discs
Cross striation
Elongated and centrally situated nuclei
Cardiac muscle:HEX400
Cardiac muscle:HEX400 (cross section)
Cap
Smooth muscle
Small intestine: HEX40
Adventitia
Muscular layer
Submucosa
Mucosa
Smooth muscle:HEX400
Elongated spindle-shaped cell
Centrally situated nucleus
No cross striation
Smooth muscle:HEX100
A few cells with nuclei
CT betw. fibers
Skeletal Muscle (Drawing)
1.Cross Section:
Epimysium
Perimysium
Endomysium
2. Longitudinal Section:
I,A band, sarcomere
The end