What would happen without input from gamma motor neurons? A) Information about velocity would continue, but information about length would no longer be possible. B) The spindles would be unable to provide feedback as the muscle contracted. C) Neither the intrafusal nor extrafusal fibers would contract. D) The extrafusal fibers would not contract, but the intrafusal fibers would continue to contract.

If an individual does training with only the right knee extensor muscles, it is common to see increase in strength in knee extension force for the right leg and an increase in strength in the knee extension force of the left leg (although the increase in force is typically not to the same extent as the force increase in the right leg) a.) True b.) False

Isometric exercise is best described as applying a force O a) with movement through a full and complete range of motion O b) while a muscle is lengthening and returning to a resting position c) without any change in length of the muscle O d) at a constant speed

If a muscle is contracted and shortening, what happens to the following: (a) width of the A band, (b) width of the H zone, (c) relationship of the Z discs, and (d) width of the I band?

Smooth muscles relax when: a) myosin kinase phosphorylates the myosin head b) myosin phosphatase removes a phosphate group from myosin c) Ca2 + binds to calmodulin d) Ca2 + flows out of the sarcoplasmic reticulum

9) In the Golgi tendon reflex we see ______________ of the muscle and in the stretch reflex we see ______________: a) Contraction: relaxation b) contraction: no reaction c) swelling: contraction d) relaxation:swelling e) relaxation: contraction

According to the size principle, which type of muscle fibers are recruited last during a muscle contraction? Group of answer choices:   1.) Type I 2.) type IIB 3.) Type IIA

Doing the doggy hydrant exercise would work this muscle the most: A) TricepsB) SartoriusC) Pectoralis MajorD) Gastrocnemus

21) which of the following memebrane surrounds the entire muscle belly? a) epimysium b) endomysium c) perimysium d) sarcolemma