Title: 5. Molecular mechanism of skeletal muscle contraction. Structure of skeletal muscle. The regulatory role of calcium ion – greek.doctor
Headings: 5. Molecular mechanism of skeletal muscle contraction. Structure of skeletal muscle. The regulatory role of calcium ion
5. Molecular mechanism of skeletal muscle contraction. Structure of skeletal muscle. The regulatory role of calcium ion
Table of Contents
Learning objectives
General principles of muscles
Excitation-contraction coupling
General structure of muscle cells
Structure and contraction of skeletal muscle
Structure of skeletal muscle
Mechanism of excitation
Mechanism of contraction
Termination of contraction

Content: Structure of skeletal muscle. The regulatory role of calcium ion
Table of Contents
Learning objectives
General principles of muscles
Excitation-contraction coupling
General structure of muscle cells
Structure and contraction of skeletal muscle
Structure of skeletal muscle
Mechanism of excitation
Mechanism of contraction
Termination of contraction
Learning objectives
What does excitation-contraction coupling mean? What do we call the cell membrane, cytoplasm, and endoplasmic reticulum of a muscle cell? Describe the composition of skeletal muscle
Which proteins comprise the thin and thick filaments? What is the function of troponin and tropomyosin? What is the functional unit of striated muscle? What are the thin filaments anchored to? What are T-tubules? Which two proteins in the T-tubules are essential for excitation-contraction coupling, and what are their functions? Describe the mechanism of excitation of skeletal muscle
Describe the cross-bridge cycle
Describe the termination of contraction
General principles of muscles
There are three types of muscle tissue.