Question

Single muscle twitch can be recorded by
A. Cardiograph
B. Myograph
C. Myogram
D. Kymograph

Answer 1

A single muscle twitch can be defined as a process when both the myelin and the actin filaments of the sarcomere have contracted and expanded leading to the generation of a single action potential. It is considered a short bust of movement and it can be analysed graphically to see proper functioning.

Complete answer:
Whenever there is a movement in the body it is caused by the expansion and contraction of the muscle fibres present throughout the body. Though if we see when there is a regular movement in the body it is mediated by a series of action potential generated at that time but when only one action potential is responsible for a singular muscular movement then it is defined as a single muscle twitch. The graphical representation of this twitch can be done and it is done with the help of Kymograph. The kymograph is responsible for recording the muscle twitch.
Whereas if we discuss the above mentioned other options, then we will see that cardiograph is a device which gives us graphical analysation of the cardiac muscles situated in the heart. It gives us an idea of the functioning of the heart. Also, the other option is myograph which is a device and it is known for the recording of the force produced when the muscles are entered into the contraction phase of the cycle. The graph which is developed after the myograph has recorded the muscle contraction force is known as the myogram. The main purpose of using these devices is to identify whether the mussels are functioning properly or not.

Note: In a single twitch moment the muscles are known to undergo different phases like latent phase, contraction phase, and the lag phase. The three different phases ensure that the contraction is smooth and is not like a jerk and the muscles also get a little rest before undergoing another contraction.