Home
Class 11
BIOLOGY
Heartbeat initiates from...

Heartbeat initiates from

A

auriculo-ventricular node

B

sino-auricular node

C

bundle of His

D

purkinje fibres

Text Solution

AI Generated Solution

The correct Answer is:
To answer the question "Heartbeat initiates from," we will follow these steps: ### Step-by-Step Solution: 1. **Identify the Heart's Electrical Conduction System**: - The heart has a specialized conduction system that controls the heartbeat. This system includes various nodes and fibers that generate and transmit electrical impulses. 2. **Locate the Sinoatrial Node (SAN)**: - The Sinoatrial Node (SAN), also known as the sinoauricular node, is located in the upper part of the right atrium (auricle) of the heart. 3. **Function of the Sinoatrial Node**: - The SAN generates electrical impulses that initiate the heartbeat. It is responsible for the rhythmic contraction of the heart muscles. 4. **Natural Pacemaker**: - The SAN is often referred to as the natural pacemaker of the heart because it sets the pace for the heart rate by generating impulses that trigger heart contractions. 5. **Conclusion**: - Therefore, the heartbeat initiates from the Sinoatrial Node (SAN). ### Final Answer: The heartbeat initiates from the Sinoatrial Node (SAN). ---
To answer the question "Heartbeat initiates from," we will follow these steps: ### Step-by-Step Solution: 1. **Identify the Heart's Electrical Conduction System**: - The heart has a specialized conduction system that controls the heartbeat. This system includes various nodes and fibers that generate and transmit electrical impulses. 2. **Locate the Sinoatrial Node (SAN)**: ...
Promotional Banner

Topper's Solved these Questions

  • BODY FLUIDS AND CIRCULATION

    ICSE|Exercise REVIEW QUESTIONS( II. FILL IN THE BLANKS )|14 Videos

  • BODY FLUIDS AND CIRCULATION

    ICSE|Exercise REVIEW QUESTIONS( III. MATCH COLUMN I WITH COLUMN II )|1 Videos

  • BIOMOLECULES

    ICSE|Exercise REVIEW QUESTIONS (LONG ANSWER TYPE QUESTIONS)|9 Videos

  • BREATHING AND EXCHANGE OF GASES

    ICSE|Exercise REVIEW QUESTIONS (LONG ANSWER TYPE QUESTIONS)|8 Videos

Similar Questions

Explore conceptually related problems

Impulse of heartbeat originates from

Heartbeat in vertebrates is

Diffraction initiated from obstacle, depends upon the

The developmenf of Funaria gametophyte always initiated from : 1) Antheredium 2) Protenema 3) Archegonia 4) Capsule

A person has cardiac output 5600ml / minute and stroke volume 70 ml . What would be the number of heartbeat in 2 minutes in this person

The stretching and relaxing of arteries with each heartbeat felt as throbbing is called _________

All the unconscious activities like heartbeat, involuntary breathing and gut peristalsis are controlled by

Fill in the blanks with suitable words : Auxins were isolated initially from the urine of humans who suffered from a disease called …………

Fill in the blanks with suitable words : Auxins were isolated initially from the urine of humans who suffered from a disease called …………

Two identical blocks are attached by a massless string running over a pulley as shown in figure. The rope initially runs over the pulley at its (the rope's) midpoint, and the surface that block 1 rests on is frictionless. Blocks 1 and 2 are initially at rest when block 2 is released with the string taut and horizontal. Assume that the initial distance from block 1 to the pulley is the same as the initial distance from block 2 to the wall.