During crossbridge cycling, ATP is used to prime the head of an actin filament.

Gluteus maximus is part of the axial skeleton. 

Which of the following muscles is found in the anterior compartment of the upper arm?

Which posterior thoracic muscle is important in attaching the arm to the trunk and moving the glenohumeral joint?

In which type of organization are muscle fascicles organized around an opening forming a sphincter?

Describe what is happening within a muscle cell during the crossbridge cycling step of muscle contraction.

Structurally how is smooth muscle different from skeletal and cardiac muscle?

A muscle cell is also called a muscle …

List AND describe two things about muscle cells that make them uniquely able to function (in other words tell me three things that muscle cells have the ability to do that other cells don’t necessarily have the ability to do).

What is a motor unit? How do motor units change as we age? How does this change influence our motor skills as we age?