Question

The muscle which work throughout life without undergoing fatigue is _____
A. Striated muscles
B. Non striated muscle
C. Cardiac muscle
D. All of the above

Answer 1

Hint: The muscles in human beings can be defined as a band or bundle of tissues. That can contract., Produce movement. Muscles play a central role in the life of humans as well as animals. It also helps in movement of other parts of the body.

Complete answer:
Striated muscles - These humerus muscle fascicles. Each of these muscle fascicles has a number of muscle fibres. Also each of these muscle fibers have multiple nuclei, they are cross striated as well as they have cylindrical cells that are called myocytes.
Non striated muscles - These muscles are also known as smooth muscles. These muscles contain myofilaments. They have two types of muscles. that are known as cardiac muscle and skeletal muscles.
Cardiac muscle - Myocardium has three types of muscle fibres. One of the muscle fibers contains a contractile unit of the heart. Second muscle fibre has a pacemaker. And the third form of muscle fibre has a conductive system.
There are two types of muscles voluntary muscles and involuntary muscles voluntary muscles are those in which movement can be seen from outside. And involuntary muscles are those in which movement cannot be seen with the naked eye. Skeletal muscles are the involuntary muscles. The number of skeletal muscles inside the human body are around 635.
So, from the above discussion we can conclude that the correct answer is option C.

Note: Muscles are very sensual for the living organism. They help in body movement. If humans were not provided with muscle humans will also be stuck to one place like that of plants. The human muscle that remains into work throughout life is cardiac muscle.