Question:
Neurogenic heart receives stimulus for contraction from ______________ fibres.
Neurogenic heart receives stimulus for contraction from ______________ fibres.
Show Hint
Neurogenic heart = nerve-controlled heartbeat; Myogenic heart = muscle-controlled heartbeat.
Updated On: Mar 6, 2026
- elastin
- collagen
- nerve
- muscle
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: Understanding neurogenic heart.
A neurogenic heart is one in which the heartbeat is initiated and controlled by nervous impulses rather than originating within the heart muscle itself.
Step 2: Source of contraction stimulus.
In neurogenic hearts, contraction begins only when a nerve impulse reaches the cardiac muscle. This type of heart is commonly seen in arthropods like insects.
Step 3: Elimination of incorrect options.
Elastin and collagen are structural proteins and do not generate impulses.
Muscle fibres contract but do not initiate impulses in neurogenic hearts.
Step 4: Conclusion.
The stimulus for contraction in a neurogenic heart comes from nerve fibres.
A neurogenic heart is one in which the heartbeat is initiated and controlled by nervous impulses rather than originating within the heart muscle itself.
Step 2: Source of contraction stimulus.
In neurogenic hearts, contraction begins only when a nerve impulse reaches the cardiac muscle. This type of heart is commonly seen in arthropods like insects.
Step 3: Elimination of incorrect options.
Elastin and collagen are structural proteins and do not generate impulses.
Muscle fibres contract but do not initiate impulses in neurogenic hearts.
Step 4: Conclusion.
The stimulus for contraction in a neurogenic heart comes from nerve fibres.
Was this answer helpful?
0
0
Top MHT CET Biology Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- Important sperm lysin used for dissolving egg covering is
- In biogas plant, the role of acidogenic bacteria is to
- In $C_{3}$ plants, the first stable product of photosynthesis during the dark reaction is
- In case of anaerobic respiration, the RQ is ___________
View More Questions
Top MHT CET Photosynthesis in higher plants Questions
- In $C_{3}$ plants, the first stable product of photosynthesis during the dark reaction is
- Number of chlorophyll molecules present in a quantasome is
- Which one does not show HSK pathway ?
- Final product of HSK cycle is formed in
- Final electron acceptor in PS II during light reaction is
View More Questions
Top MHT CET Questions
- During r- DNA technology, which one of the following enzymes is used for cleaving DNA molecule ?
- In non uniform circular motion, the ratio of tangential to radial acceleration is (r = radius of circle, $v =$ speed of the particle, $\alpha =$ angular acceleration)
- The temperature of $32^{\circ}C$ is equivalent to
- The line $5x + y - 1 = 0$ coincides with one of the lines given by $5x^2 + xy - kx - 2y + 2 = 0 $ then the value of k is
- The heat of formation of water is $ 260\, kJ $ . How much $ H_2O $ is decomposed by $ 130\, kJ $ of heat ?
View More Questions