1
Question
Read the following statements and select the correct option:
Statement 1: Cardiac muscle of the heart is striated and has intercalated discs between its fibres (cells)
Statement 2: It provides for quick, powerful and rhythmic contractions of the heart.
Read the following statements and select the correct option:
Statement 1: Cardiac muscle of the heart is striated and has intercalated discs between its fibres (cells)
Statement 2: It provides for quick, powerful and rhythmic contractions of the heart.
Statement 1: Cardiac muscle of the heart is striated and has intercalated discs between its fibres (cells)
Statement 2: It provides for quick, powerful and rhythmic contractions of the heart.
Open in App
Solution
The correct option is A Both statements 1 and 2 are correct
Cardiac muscles are present in the heart. Cardiac muscle tissue fibres are striated and involuntary 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, thus they are involuntary. They have intercalated discs at intervals. These discs permit the wave of muscle contractions to be transmitted from one cardiac fibre to another. This provides quick powerful and rhythmic contractions to the heart.So the correct answer is 'Both statements 1 and 2 are correct'.
Cardiac muscles are present in the heart. Cardiac muscle tissue fibres are striated and involuntary 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, thus they are involuntary. They have intercalated discs at intervals. These discs permit the wave of muscle contractions to be transmitted from one cardiac fibre to another. This provides quick powerful and rhythmic contractions to the heart.
So the correct answer is 'Both statements 1 and 2 are correct'.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
