Match the correct muscle names to the letters identifying each muscle in the image below.

These muscles contract to fixate body joints not involved in primary joint movements. 

What muscles are being trained at the elbow joint in the following exercise? Select all that apply.

The _____________ plane divides the body into anterior and posterior halves.

Match the correct muscle names to the letters identifying each muscle in the images below.

What movement at the glenohumeral joint is occurring in the image sequence below?     

Your strength coach is stretching your hamstring when you suddenly notice he has pushed your leg back too far too quickly. Which of the following proprioceptors would activate a reflex to help prevent any additional stretch to the muscle?

The glenohumeral joint is classified as what type of joint?

What movement at the glenohumeral joint is occurring in the image sequence below? 

Which of the following sensory receptors is located in the tendons of skeletal muscle and signals the antagonist muscle group to contract if it experiences excessive levels of muscle tension (force)?