(d) Auricular depolarization, ventricular diastole and auricular systole are the events that occur in cardiac cycle simultaneously. Cardiac cycle is the rhythmic contraction (systole) and relaxation (diastole) of the heart chambers that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood re-enters the heart from the vena cava and the pulmonary veins.
BODY FLUIDS and CIRCULATION(NCERT)
285973
A:V. Node in human heart is embedded in
1 Inter-atrial septum
2 Inter-ventricular septum
3 The wall of right atrium closer to precaval opening
4 Atrio-ventricular septum
Explanation:
(a) This node is located close to the tricuspid valve
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285974
Which is the correct route through which pulse making impulse travels in the heart? NCERT-284 & 285 / N-199, 200]#
1 SA node$\to $ AV node $\to $ Bundle of His $\to $ Purkinje fibres
2 AV node$\to $ Bundle of His $\to $ SA node $\to $ Purkinje fibres $\to $ heart muscles
3 AV node$\to $ SA node $\to $ Purkinje fibres $\to $ Bundle of $\text{His}\to $ heart muscles
4 SA node$\to $ Purkinje fibres $\to $ Bundle of His $\to $ AV node $\to $ heart muscles
Explanation:
(a) The auricular contraction initiated by the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby leading to the contraction of ventricles through the bundle of His and Purkinje fibres.
(d) Auricular depolarization, ventricular diastole and auricular systole are the events that occur in cardiac cycle simultaneously. Cardiac cycle is the rhythmic contraction (systole) and relaxation (diastole) of the heart chambers that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood re-enters the heart from the vena cava and the pulmonary veins.
BODY FLUIDS and CIRCULATION(NCERT)
285973
A:V. Node in human heart is embedded in
1 Inter-atrial septum
2 Inter-ventricular septum
3 The wall of right atrium closer to precaval opening
4 Atrio-ventricular septum
Explanation:
(a) This node is located close to the tricuspid valve
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285974
Which is the correct route through which pulse making impulse travels in the heart? NCERT-284 & 285 / N-199, 200]#
1 SA node$\to $ AV node $\to $ Bundle of His $\to $ Purkinje fibres
2 AV node$\to $ Bundle of His $\to $ SA node $\to $ Purkinje fibres $\to $ heart muscles
3 AV node$\to $ SA node $\to $ Purkinje fibres $\to $ Bundle of $\text{His}\to $ heart muscles
4 SA node$\to $ Purkinje fibres $\to $ Bundle of His $\to $ AV node $\to $ heart muscles
Explanation:
(a) The auricular contraction initiated by the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby leading to the contraction of ventricles through the bundle of His and Purkinje fibres.
(d) Auricular depolarization, ventricular diastole and auricular systole are the events that occur in cardiac cycle simultaneously. Cardiac cycle is the rhythmic contraction (systole) and relaxation (diastole) of the heart chambers that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood re-enters the heart from the vena cava and the pulmonary veins.
BODY FLUIDS and CIRCULATION(NCERT)
285973
A:V. Node in human heart is embedded in
1 Inter-atrial septum
2 Inter-ventricular septum
3 The wall of right atrium closer to precaval opening
4 Atrio-ventricular septum
Explanation:
(a) This node is located close to the tricuspid valve
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285974
Which is the correct route through which pulse making impulse travels in the heart? NCERT-284 & 285 / N-199, 200]#
1 SA node$\to $ AV node $\to $ Bundle of His $\to $ Purkinje fibres
2 AV node$\to $ Bundle of His $\to $ SA node $\to $ Purkinje fibres $\to $ heart muscles
3 AV node$\to $ SA node $\to $ Purkinje fibres $\to $ Bundle of $\text{His}\to $ heart muscles
4 SA node$\to $ Purkinje fibres $\to $ Bundle of His $\to $ AV node $\to $ heart muscles
Explanation:
(a) The auricular contraction initiated by the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby leading to the contraction of ventricles through the bundle of His and Purkinje fibres.
(d) Auricular depolarization, ventricular diastole and auricular systole are the events that occur in cardiac cycle simultaneously. Cardiac cycle is the rhythmic contraction (systole) and relaxation (diastole) of the heart chambers that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood re-enters the heart from the vena cava and the pulmonary veins.
BODY FLUIDS and CIRCULATION(NCERT)
285973
A:V. Node in human heart is embedded in
1 Inter-atrial septum
2 Inter-ventricular septum
3 The wall of right atrium closer to precaval opening
4 Atrio-ventricular septum
Explanation:
(a) This node is located close to the tricuspid valve
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285974
Which is the correct route through which pulse making impulse travels in the heart? NCERT-284 & 285 / N-199, 200]#
1 SA node$\to $ AV node $\to $ Bundle of His $\to $ Purkinje fibres
2 AV node$\to $ Bundle of His $\to $ SA node $\to $ Purkinje fibres $\to $ heart muscles
3 AV node$\to $ SA node $\to $ Purkinje fibres $\to $ Bundle of $\text{His}\to $ heart muscles
4 SA node$\to $ Purkinje fibres $\to $ Bundle of His $\to $ AV node $\to $ heart muscles
Explanation:
(a) The auricular contraction initiated by the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby leading to the contraction of ventricles through the bundle of His and Purkinje fibres.
(d) Auricular depolarization, ventricular diastole and auricular systole are the events that occur in cardiac cycle simultaneously. Cardiac cycle is the rhythmic contraction (systole) and relaxation (diastole) of the heart chambers that corresponds to one heartbeat. During the cardiac cycle, blood is pumped out of the heart into the aorta and the pulmonary artery, and blood re-enters the heart from the vena cava and the pulmonary veins.
BODY FLUIDS and CIRCULATION(NCERT)
285973
A:V. Node in human heart is embedded in
1 Inter-atrial septum
2 Inter-ventricular septum
3 The wall of right atrium closer to precaval opening
4 Atrio-ventricular septum
Explanation:
(a) This node is located close to the tricuspid valve
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285974
Which is the correct route through which pulse making impulse travels in the heart? NCERT-284 & 285 / N-199, 200]#
1 SA node$\to $ AV node $\to $ Bundle of His $\to $ Purkinje fibres
2 AV node$\to $ Bundle of His $\to $ SA node $\to $ Purkinje fibres $\to $ heart muscles
3 AV node$\to $ SA node $\to $ Purkinje fibres $\to $ Bundle of $\text{His}\to $ heart muscles
4 SA node$\to $ Purkinje fibres $\to $ Bundle of His $\to $ AV node $\to $ heart muscles
Explanation:
(a) The auricular contraction initiated by the wave of excitation from the sino-atrial node (SA node) stimulates the atrio-ventricular node, thereby leading to the contraction of ventricles through the bundle of His and Purkinje fibres.
