Advertisements
Advertisements
Question
Write the features that distinguish between the two.
Sino-atrial node and Atrio-ventricular node
Solution
| Sino-atrial node | Atrio-ventricular node |
| 1. SA node is present in the right upper comer of the right atrium | 1. AV node is present in the lower left comer of the right atrium |
| 2. It initiates and maintains the rhythmic contractile activity of the heart | 2. It passes the electrical impulses from SA node to AV bundle |
| 3. It is also called pace-maker | 3. It is also called pace-setter |
APPEARS IN
RELATED QUESTIONS
Describe the evolutionary change in the pattern of heart among the vertebrates.
A patient’s chart reveals that he has a cardiac output of 7500 mL per minute and a stroke volume of 50 mL. What is his pulse rate (in beats/min)
Distinguish between mitral valve and semi lunar valve.
Right ventricular wall is thinner than the left ventricular wall. Why?
What are the heart sounds? When and how are these sounds produced?
Which among the followings is correct during each cardiac cycle?
Define the following terms and give their location?
Purkinje fibre
The walls of ventricles are much thicker than atria. Explain.
Answer the following:
Which part of heart is responsible for initating and maintaining its rhythmic activity?
In the diagrammatic presentation of heart given below, mark and label, SAN, AVN, AV bundles, bundle of His and Purkinje fibres.
