Reciprocal Inhibition

Question 1

Reciprocal inhibition occurs when certain muscles are inhibited from contracting due to the activation of the muscle spindles.
The muscle spindle is located in the _____________, and since it is it’s rate of change in ________ when the muscle contracts or stretches.

Answer 1

Within the muscle belly, length.

Question 2

When the muscle contracts or stretches, muscle spindle is activated and causes a reflexive contraction in the agonist/antagonist muscle (known as the stretch reflex) and relaxation in the agonist/antagonist muscle.

Answer 2

Agonist, antagonist

Question 3

Sensory receptors are reciprocally inhibited by GTO/muscle spindles.

Answer 3

Muscle spindles

Question 4

What do muscle spindles do?

Monitor its rate change in length/change in tension load at muscular tendon.

Answer 4

Monitor its rate of change in length

Question 5

Agonist muscle contracts/relaxes, antagonist muscle contracts/relaxes.

Answer 5

Agonist muscle contracts, antagonist muscle relaxes.

Question 6

Which muscle would you contract to reciprocally inhibit gluteus maximus?

Answer 6

Psoas major

Question 7

When triceps brachii is contracted isometrically, which muscle will be reciprocally inhibited?

Answer 7

Biceps brachii