Question

Multinucleate muscle cells are
a. Cardiac muscles
b. Smooth muscles
c. Skeletal muscles
d. All of the above

Answer 1

Muscle is the soft tissue, found in most of the animals, muscle function is to provide movement in the body and locomotion, and they also for the movement of internal organs such as contraction of the heart, and digestive system and this functions of muscle is due to the presence of actin and myosin proteins, which are contractile in nature.

Complete answer:
Muscle is derived from the mesoderm of the embryonic germ layers.
Muscle is mainly divided into 3 types, they are:
- Skeletal or striated
- Smooth muscle
- Cardiac muscle
Out of all these muscles, smooth and cardiac muscles are involuntary in action. But the skeletal muscle is voluntary in action, it is acted upon only by any command.

Skeletal muscle: This muscle is a volunteer muscle and it is also called striated or striped muscle, and it is multinucleated, This skeletal muscles are anchored to the bones by tendons, and they help to maintain the posture of the body, and also help in locomotion.

Smooth muscle: This muscle is fusiform in shape, involuntary in action and they are uninucleate, this is the muscles present as the lining of internal organs such as the stomach and intestine, and the contraction of smooth muscles in the stomach helps to break the food, and all these actions are taking place none consciously, so this are involuntary muscles.

Cardiac muscle: This is an involuntary muscle with uninucleate and these muscles are also arranged in bundles, hence they called as stripped or straight A’s same like skeletal muscle, and cardiac muscle is present in the heart, which helps In contraction, and this muscle continuously pumps the blood, and this muscle has more mitochondria to produce energy.
So from the above explanation skeletal muscle is the answer.

Hence, the correct answer is option (C).

Note: Skeletal muscle has two types of twitch muscles, one is the slow-twitch muscle and fast-twitch muscle, slow-twitch muscles are useful for long-distance work such as running, marathon, etc. While fast-twitch muscles show action during sprinting, weight lifting, etc.