Which of the following statements are true: Acetylcholine stimulates the motor end plate. Slow fibers are absent from hand muscles. All of the listed statements are true. Motor units have a set tension strength per contraction. When DHPR proteins undergo a conformational change, Ca ions are released. Ca ions enter the sarcoplasmic reticulum via active transport.

Answer is option "A"

Explanation:

Skeletal muscle tissue structures skeletal muscles, which join to bones or skin and control headway and any development that can be deliberately controlled. Since it very well may be constrained by thought, skeletal muscle is additionally called willful muscle. Skeletal muscle likewise has numerous cores present in a solitary cell. Smooth muscle has no striations, isn't under deliberate control, has just a single core for each phone, is decreased at the two finishes, and is called automatic muscle. Cardiovascular muscle tissue is just found in the heart, and cardiovascular compressions siphon blood all through the body and keep up circulatory strain. It has one core for every cell, is spread, and is recognized by the nearness of intercalated plates.Hence, the right answer is option a "All of the listed statements are true"

option a is correct i.e.

only sodium ions can pass through the membrane.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.