Exam 12: Muscle: Mechanisms of Contraction and Neural Control

The monosynaptic stretch reflex involves the actions of the muscle spindles.

Calcium that is needed to activate cross-bridging in smooth muscle mainly comes from

The more movable bony attachment is the

During skeletal muscle contraction,adjacent _________ are pulled closer together as the _______ between them shorten.

Isotonic muscle contractions are often preceded by isometric contractions.

Parkinson's disease involves degeneration of nerve fibers from the

Endurance training results in increased

Which of the following is NOT true of the relaxation of a muscle fiber?

A shortening of the muscle that occurs when the tension is greater than the load is a(n)

Ca²⁺ must bind to tropomyosin so that the myosin binding sites on actin will be accessible to the myosin.

A muscle that constricts an opening is a/an

Random uncontrolled contractions of different muscle groups as a result of damage to the basal nuclei is a symptom of upper motor neuron damage called

Which of the following is NOT true about the series-elastic component to contraction?

Flexors increase the angle at a joint.

In regards to the relationship between resting muscle fiber length and tension generated,

Muscles which move a limb away the midline of the body are termed

Which of the following is true of fast oxidative.Type IIA muscle fibers?

An individual suffering damage to the basal nuclei resulting in a lack of desire to use a limb would be suffering from

When a muscle cell generates tension but does not shorten,a(n)______ contraction occurs.

Z discs are found bisecting the A bands.