Read the following statements and select the correct option.Statement ...
Cardiac muscle tissue fibres show the characters of both striated and unstriated muscle fibres. The myofibrils have dark and light bands, thus they are striated but they are not under the control of the will of the animal, there they are involuntary They have intercalated discs at interval. The deer permit the wave of muscle contraction to be transmitted from one cardiac libre to another. This provides quick, powerful and rhythmic contractions to the heart.
View all questions of this test
Read the following statements and select the correct option.Statement ...
**Explanation:**
The correct answer is option **B**.
Statement 1: Cardiac muscle of the heart is striated and has intercalated discs between its fibers (cells).
This statement is correct. Cardiac muscle, also known as myocardium, is a type of muscle tissue that is found in the walls of the heart. It is striated, which means it has a striped appearance when viewed under a microscope. The striations are due to the arrangement of contractile proteins within the muscle fibers.
Intercalated discs are specialized structures found between cardiac muscle fibers. These discs provide a strong physical and electrical connection between adjacent cells, allowing for coordinated contractions of the heart.
Statement 2: It provides quick, powerful, and rhythmic contractions to the heart.
This statement is also correct. The cardiac muscle is responsible for the contraction of the heart, which allows it to pump blood throughout the body. The contractions of the cardiac muscle are quick, powerful, and rhythmic, ensuring an efficient pumping action.
The intercalated discs play a crucial role in the coordinated contractions of the cardiac muscle. They allow for the rapid transmission of electrical signals between adjacent cells, allowing the heart to contract in a synchronized manner.
Therefore, both statements 1 and 2 are correct. However, statement 2 is not the correct explanation of statement 1. The striated and intercalated disc features of the cardiac muscle are independent characteristics of the tissue and do not directly explain its quick, powerful, and rhythmic contractions.
Read the following statements and select the correct option.Statement ...
The correct answer should be 'A'.?????
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.