Question

1. When an electrical current is given at the -------, the nerve stimulated will cause the skeletal muscle to contract.

a. motor unit

b. axon terminal

c. motor point

d. neuromotor junction

2. The process of ["temporal summation", "tetany", "recruitment"]    takes place when additional motor units are stimulated and the force of the muscle contraction increases.

3. When all motor units are stimulated and the frequency of stimulation increases to the point that the muscle can only partially relax before it is stimulated again, the contraction force increases. This is called ["recruitment", "temporal summation", "tetany"]         

4. The smallest electrical stimulus required to produce a finger twitch, is known as the   ["resting potential", "tetanus force", "maximal stimulus", "threshold stimulus"] .

Answer 1

1. An electrical stimulation at a point on skin causes muscle contraction, then that point is called motor point

Answer is motor point

2. The process of addition of active motor unit to increase strength of contraction in a muscle fiber

Answer is recruitment

3. Temporal summation is, increasing the frequency of stimulation by sending continues signals before muscle contract

Answer is temporal summation

4. Minimum strength of stimulus to produce a contraction is threshold stimulus

Answer threshold stimulus