Skeletal Muscle Terms & Topics

You should be familiar with each of the following terms and be able to explain the basic aspects of their role in contraction of striated muscle fibers:

Myosin

Actin

Troponin

Tropomyosin

Sarcolemma

Neuromuscular (or myoneural) junction

Motor end plate

Transverse tubules

Sarcoplasmic reticulum

Terminal cisternae

Z-band

Thick filaments

Thin filaments

You should also be able to present a basic discussion of:

Ratchet theory of muscle contraction (Fig. 10-11 in your text)

Role of Ca⁺⁺ in muscle contraction