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Questions and Answers
Which type of muscle cell is referred to as a cardiomyocyte?
Which type of muscle cell is referred to as a cardiomyocyte?
- Red blood cell
- Working Cardiac m cell (correct)
- Smooth muscle cell
- Skeletal muscle cell
What is the length range of a relaxed cardiomyocyte?
What is the length range of a relaxed cardiomyocyte?
- 50-100 micron (correct)
- 7 micron
- 10-20 micron
- 3-60 cm
Where are the nuclei located in a cardiomyocyte?
Where are the nuclei located in a cardiomyocyte?
- In the intercalated discs
- In the center of sarcoplasm (correct)
- In the sarcoplasma
- In the T-tubules
What is the function of intercalated discs in cardiac muscle cells?
What is the function of intercalated discs in cardiac muscle cells?
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What is the term used to describe the fusion of multiple cardiomyocytes into a single functional unit?
What is the term used to describe the fusion of multiple cardiomyocytes into a single functional unit?
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Study Notes
Cardiomyocyte Characteristics
- Cardiomyocytes are a type of muscle cell found in the heart.
- The length of a relaxed cardiomyocyte ranges from 50-100 μm.
Cardiomyocyte Structure
- Nuclei are located centrally in a cardiomyocyte.
Function of Intercalated Discs
- Intercalated discs in cardiac muscle cells enable the rapid transmission of electrical impulses and coordinate contraction.
Functional Unit of Cardiomyocytes
- The term used to describe the fusion of multiple cardiomyocytes into a single functional unit is a syncytium.
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