Question

You should be able to:

Describe the three types of muscles (cardiac, skeletal, smooth), including their functions and where they are found

Explain the important functions of muscles

Explain why skeletal muscles have a striated appearance

Understand the how the sliding filament model of muscle contraction works

Understand the role of the troponin and tropomyosin in muscle contraction

Describe the structure of the thick (myosin) and thin (actin) filaments

Explain how a signal travels from a motor neuron to a muscle fiber

Describe what happens during excitation-contraction coupling

Understand the role of an action potential in releasing calcium ions from the SR

Describe the events that occur during the cross bridge cycle

Describe how changing frequency and intensity of stimulation can affect the strength of contraction

Explain the factors that can affect the force of muscle contraction

Describe how the longitudinal and circular layers of smooth muscle work together to move substances through hollow organs

Answer 1