Identify microscopically:

1. Longitudinal section of skeletal muscle

2. The different bands in the longitudinal section that form the cross striations

3. Nuclei of the skeletal muscle and connective tissue

Draw and annotate:

A skeletal muscle fibre. Indicate al the different components in detail.

1. How many of the cross striation of skeletal muscle are visible under the light microscope?
2. Can all the bands be seen?
3. How does each band appear?

Longitudinal and cross section of striated muscle

• Low magnification of the tongue stained with iron haematoxillin
• High magnification of skeletal muscle in tongue stained with iron haematoxillin
• Surface of the tongue stained with iron haematoxillin
• Section through the tip of the tongue
• Longitudinal section of skeletal muscle
• Cross and longitudinal section of skeletal muscle
• Very high magnification of skeletal fibres

Arrangement of muscle bundles and connective tissues

Myofibrils and components

Very high magnification of the components of a myofibril