Muscles histology Flashcards
1
Q
What is this an image of?
A
- H&E image of skeletal muscle
- Longitudional section on the right
- Cross section on the left
2
Q
Label this image, stating 2 extra features
A
Extra features:
- Fibroblasts in perimysium
- Muscle striations are only visible in longitudinal section
3
Q
What is shown in this image?
Label the types of fibre present
A
- Skeletal muscle stained for ATPase (ph4.3) in transverse/cross section
- Dark stained fibres = type 1
- Slightly less stained = type 2a
- Unstained fibres = type 2b
4
Q
What is this an image of?
A
5
Q
What is this an image of?
What else is shown here?
A
- Skeletal muscles of the tounge
- You also see interdigitation of the collagen and extracellular matrix of their surrounding connective tissue (arrows). That is how the muscles of the tongue often terminate
6
Q
What accounts for the mobility of the tongue?
A
The plasticity and strength of the connective tissues
and the multidirectional orientation of the (striated) muscle fibres
