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प्रश्न
What is Sinus arrhythmias?
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उत्तर
Sinus arrhythmias: During inspiration heart rate increases and during expirations it falls. This phenomenon is known as sinus arrhythmia.
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संबंधित प्रश्न
Explain the following:
Why is the SA node called the pace-maker of the heart?
Select the odd one in the following:
Artery, Vein, Capillary, Nerve.
State the Function: Chordae tendinae
What is the importance of valves in the heart?
Why are the walls of the left ventricle thicker than the other chambers of the heart?
The inner surface of the ventricle is thrown into series of irregular muscular ridges called ______
Analogy:
Skeletal muscle: Muscle of arm.
Cardiac muscle: ______.
Give the location of Pericardial fluid.
Explain the term Ligamentum arteriosum.
Match the valves of human heart in column I with the respective opening they guard in column II and select the correct option.
| Column I | Column II | ||
| i. | Eustachian valve | a. | Opening of pulmonary aorta |
| ii. | Thebesian valve | b. | Left atrioventricular aperture |
| iii. | Mitral valve | c. | Opening of inferior vena cava |
| iv. | Semilunar valve | d. | Opening of coronary sinus |
