What is the neurological reflex whereby one muscle relaxes when its opposing muscle contracts?

What is the main type of collagen found in cartilage?

Match the number with the correct part.  

What mineral is stored in the sarcoplasmic reticulum?

The longissimus capitis inserts into the mastoid process of the temporal bone.

What are the three variables that affect stretch?

Match the letter with the muscle.  

What does the axial skeleton contain?

What are the two major nerves that innervate the leg and foot?

List the six steps involved in a muscle contraction.