Chapter 4 Post-Assessment

Muscles are composed of what type of muscle tissue?

When all muscle fibers associated with a motor neuron contracts to their fullest extent when stimulated describes what theory?

The increase the cross-sectional area of a muscle fiber in response to the increase demands place upon it?

Each sarcomere is distinguished from its neighboring sarcomere by what feature?

What is the purpose of muscle spindles?

When the muscle contracts without a change in the range of motion:

What happens to the mechanical advantage of a muscle when a tendon inserts further away from a joint?

This somatotype is described as “higher percent of body fat, spherical shape, smaller bone diameter at the wrist and ankles”:

This somatotype is described as “low percent of body body, narrow hips and shoulders, smaller bone diameter”:

The lengthening contraction of the agonist muscle:

The muscle with primary responsibility for the given body movement:

This muscle fiber is described as slower shortening speeds, aerobic, red in appearance, contains more mitochondria and has a low force production:

Muscles that isometrically contract to eliminate multiple joint actions during the desired movement:

The selection of motor neuron size occurs from smallest to largest based on its associated muscle fiber describes what theory?

When a group of muscle fibers bundle together, this creates what component of the muscle?

What structure connects muscle to bone?

What structure connects bone to bone?

The contractile protein of muscle located at the myofilament:

When the muscle contracts through the simultaneous shortening of many adjacent sarcomeres:

A motor neuron and the muscle fibers it innervates describes what structure?