285975
Which of the following parts of heart possess semilunar valves?
1 (i) and (iii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i), (iii) and (iv)
Explanation:
(a) Semilunar valves are pocket-like structures attached at the point at which the pulmonary artery and the aorta leave the ventricles. Aorta and pulmonary artery possess semilunar valve. The pulmonary valve guards the orifice between the right ventricle and the pulmonary artery. The aortic valve protects the orifice between the left ventricle and the aorta.
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285976
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1 P-Depolarization of the atria
2 R-Repolarization of ventricles
3 S-Start of systole
4 T-End of diastole
Explanation:
(a) The P-wave indicates atrial depolarisation.
NCERT Page-286 / N-201
BODY FLUIDS and CIRCULATION(NCERT)
285977
Bicuspid valve allows blood from
1 Right auricle to left ventricle
2 right auricle to right ventricle
3 left auricle to left ventricle
4 post caval to heart
Explanation:
(c) Bicuspid valve allows blood from left auricle to left ventricle.
NCERT Page-283 / N-198
BODY FLUIDS and CIRCULATION(NCERT)
285978
The p-wave represents
1 depolarisation of atria
2 repolarisation of atria
3 depolarisation of ventricle
4 repolarisation of ventricle
Explanation:
(a) The p-wave represents depolarisation of atria.
285975
Which of the following parts of heart possess semilunar valves?
1 (i) and (iii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i), (iii) and (iv)
Explanation:
(a) Semilunar valves are pocket-like structures attached at the point at which the pulmonary artery and the aorta leave the ventricles. Aorta and pulmonary artery possess semilunar valve. The pulmonary valve guards the orifice between the right ventricle and the pulmonary artery. The aortic valve protects the orifice between the left ventricle and the aorta.
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285976
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1 P-Depolarization of the atria
2 R-Repolarization of ventricles
3 S-Start of systole
4 T-End of diastole
Explanation:
(a) The P-wave indicates atrial depolarisation.
NCERT Page-286 / N-201
BODY FLUIDS and CIRCULATION(NCERT)
285977
Bicuspid valve allows blood from
1 Right auricle to left ventricle
2 right auricle to right ventricle
3 left auricle to left ventricle
4 post caval to heart
Explanation:
(c) Bicuspid valve allows blood from left auricle to left ventricle.
NCERT Page-283 / N-198
BODY FLUIDS and CIRCULATION(NCERT)
285978
The p-wave represents
1 depolarisation of atria
2 repolarisation of atria
3 depolarisation of ventricle
4 repolarisation of ventricle
Explanation:
(a) The p-wave represents depolarisation of atria.
285975
Which of the following parts of heart possess semilunar valves?
1 (i) and (iii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i), (iii) and (iv)
Explanation:
(a) Semilunar valves are pocket-like structures attached at the point at which the pulmonary artery and the aorta leave the ventricles. Aorta and pulmonary artery possess semilunar valve. The pulmonary valve guards the orifice between the right ventricle and the pulmonary artery. The aortic valve protects the orifice between the left ventricle and the aorta.
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285976
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1 P-Depolarization of the atria
2 R-Repolarization of ventricles
3 S-Start of systole
4 T-End of diastole
Explanation:
(a) The P-wave indicates atrial depolarisation.
NCERT Page-286 / N-201
BODY FLUIDS and CIRCULATION(NCERT)
285977
Bicuspid valve allows blood from
1 Right auricle to left ventricle
2 right auricle to right ventricle
3 left auricle to left ventricle
4 post caval to heart
Explanation:
(c) Bicuspid valve allows blood from left auricle to left ventricle.
NCERT Page-283 / N-198
BODY FLUIDS and CIRCULATION(NCERT)
285978
The p-wave represents
1 depolarisation of atria
2 repolarisation of atria
3 depolarisation of ventricle
4 repolarisation of ventricle
Explanation:
(a) The p-wave represents depolarisation of atria.
285975
Which of the following parts of heart possess semilunar valves?
1 (i) and (iii)
2 (i), (ii) and (iii)
3 (ii) and (iii)
4 (i), (iii) and (iv)
Explanation:
(a) Semilunar valves are pocket-like structures attached at the point at which the pulmonary artery and the aorta leave the ventricles. Aorta and pulmonary artery possess semilunar valve. The pulmonary valve guards the orifice between the right ventricle and the pulmonary artery. The aortic valve protects the orifice between the left ventricle and the aorta.
NCERT Page-284 / N-199
BODY FLUIDS and CIRCULATION(NCERT)
285976
In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?
1 P-Depolarization of the atria
2 R-Repolarization of ventricles
3 S-Start of systole
4 T-End of diastole
Explanation:
(a) The P-wave indicates atrial depolarisation.
NCERT Page-286 / N-201
BODY FLUIDS and CIRCULATION(NCERT)
285977
Bicuspid valve allows blood from
1 Right auricle to left ventricle
2 right auricle to right ventricle
3 left auricle to left ventricle
4 post caval to heart
Explanation:
(c) Bicuspid valve allows blood from left auricle to left ventricle.
NCERT Page-283 / N-198
BODY FLUIDS and CIRCULATION(NCERT)
285978
The p-wave represents
1 depolarisation of atria
2 repolarisation of atria
3 depolarisation of ventricle
4 repolarisation of ventricle
Explanation:
(a) The p-wave represents depolarisation of atria.
