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प्रश्न
Diagrammatically, show the difference between the three types of muscle fibres.
उत्तर
- Striated muscles: These muscles are long and without branches. We can move these muscles as per our wishes, or we can stop their movement. These muscles are usually present in our hands and legs. They are directly connected to the skeleton.
- Unlined muscles: These muscles are long but their ends are pointed. Unlined muscles control those activities which we cannot control ourselves. These muscles are found in our eyelids, ureters, etc. These are found in the walls of our internal organs.
- Cardiac muscles: Cardiac muscles are small and flat-ended. They keep expanding and contracting throughout life. They are also called involuntary muscles. They are found in our heart and are found in the walls of the heart.
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संबंधित प्रश्न
Name the kind of tissue that Brings about movements in animals
Write true or false of the statement. Rewrite the false statement correctly.
Cardiac muscles have dark and light bands.
Distinguish between the following pairs in one or two sentences
(E) striated and unstriated muscles
Give structure, types and functions in brief of the following:
Muscular tissue
Answer the following question.
What enables the ear pinna to be folded and twisted while the nose tip can’t be twisted?
Mention the most abundant muscular tissue found in our body.State its function.
Which muscles act involuntarily?
- Striated muscles
- Smooth muscles
- Cardiac muscles
- Skeletal muslces
Differentiate the following activities on the basis of voluntary (V) or involuntary (IV) muscles.
Movement of chocolate in your intestine
Cells of cork contain a chemical called ______
Assertion: Non-striated muscles are said to be voluntary in nature.
Reason: Non-striated muscles are under the control of our will.
