Question:
Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body.
Differentiate between striated, unstriated and cardiac muscles on the basis of their structure and site/location in the body.
Updated On: Nov 21, 2023
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Solution and Explanation
Striated, Unstriated and Cardiac muscles are three types of muscle tissues. Their different characteristics are as follows:
| Character | Striated Muscles | Unstriated Muscles | Cardiac Muscles |
|---|---|---|---|
| 1. Shape of cells | Cells are long cylindrical, non-tapering and unbranched. | Cells are long with tapering ends (spindle shape) and unbranched. | Cells are non-tapering, cylindrical and branched. |
| 2. Nucleus | Many nuclei (multinucleated) which are situated towards the periphery of muscle fibre. | The cells have only one nucleus (uni-nucleated) situated in the center. | Each cell contains one or two nuclei situated in the center. |
| 3. Striation | Transverse alternate light and dark bands present. | Striations or strips are absent. | Cells have faint striations. |
| 4. Mode of Contraction | Voluntary contract rapidly but soon undergo fatigue. | Involuntarily not at our will. Contract comparatively slow but do not fatigue. | Involuntary, rhythmically contract and relax throughout life without fatigue under normal conditions. |
| 5. Example of location | Hands, legs and other skeletal muscles. | Stomach wall, intestine, ureter, bronchi etc. | Present in heart. |
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Concepts Used:
Animal Tissues
Human bodies, like most animal bodies, are made up of four different types of tissue:
Epithelial Tissue:
This tissue forms the outer layer of the body and also lines many of the body's cavities where it has a protective function.
General functions of epithelial tissue:-
- Provides a barrier between the external environment and the organ that it is covering.
- Specialized to function in secretion and absorption.
- Protects organisms from microorganisms, injury, and fluid loss.
Connective Tissue:
This tissue assists in the support and protection of organs and limbs and depending on the location in the body it may join or separate organs or parts of the body.
Muscle Tissue:
This tissue enables various forms of movement, both voluntary and involuntary.
Nerve Tissue:
This tissue is responsible for the carrying of electrical and chemical signals and impulses from the brain and central nervous system to the periphery, and vice versa.