GCCCD Histology of Skeletal Muscle and Dense Regular Connective Tissue Discussion

Unit 3 will cover skeletal muscle anatomy both a the microscopic and macroscopic level.

Here we will learn the microscopic anatomy of skeletal muscle.

• Please review this slide of skeletal muscle.

https://histologyslides.med.umich.edu/Histology/Basic%20Tissues/Muscle/058L_HISTO_20X.htm (Links to an external site.)

In your assessment of this virtual histology of skeletal muscle, please identify the following structures:

1. Muscle fiber
2. sarcolemma
3. nucleus
4. A-band
5. I-band
6. endomysium

Note the location of the nucleus. Also, please indicate weather this is a longitudinal section or cross-sectional view of skeletal muscle. Do you observe striations? Where would you find this tissue in the human body? What structure is made up of this tissue?

• Please review this other slide of skeletal muscle.

https://histologyslides.med.umich.edu/Histology/Basic%20Tissues/Muscle/058T_HISTO_40X.htm (Links to an external site.)

In your assessment of this virtual histology of skeletal muscle, please identify and note the location of the nuclei. Also, can you locate the perimysium and muscle fasicles? Is this a longitudinal section or cross-sectional view of skeletal muscle? Do you observe strations? Why or why not?

• Please review this slide of dense regular connective tissue.

https://histologyslides.med.umich.edu/Histology/Basic%20Tissues/Epithelium%20and%20CT/106_HISTO_40X.htm (Links to an external site.)

In your assessment of this virtual histology of dense regular connective tissue, please identify the following cells or structures in this tissue section:

1. Fibroblasts
2. collagen fibers

Where would you find this tissue in the human body? What structure is made up of this tissue?