EASY
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Which valve opens to allow blood to flow from the right atrium into the right ventricle? (Tricuspid valve/Mitral valve/Pulmonary valve)

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Important Questions on Transportation in Plants and Circulation in Animals
EASY
Match the items given in Column I with those in Column II and select the correct option given below:
Column – I | Column – II | ||
a. | Tricuspid valve | i. | Between left atrium and left ventricle. |
b. | Bicuspid valve | ii. | Between the right ventricle and pulmonary artery. |
c. | Semilunar valve | iii. | Between the right atrium and right ventricle. |

MEDIUM
Mention the exact location of the following:
(v) Pulmonary semilunar valve

EASY
Give reason for the following:
Blood cannot flow back from ventricles into the auricles.

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If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

EASY
In which one of the following pairs, two terms represent the same thing?
(i) | Lymphocyte | erythrocyte |
---|---|---|
(ii) | Plasma | serum |
(iii) | Mitral valve | bicuspid valve |
(iv) | Atrioventricular node | pacemaker |

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Name the two kinds of blood that the heart deals with. Does mixing of these two types of blood occur?

MEDIUM
Why openings of auricles into ventricles are guarded by valves?

EASY
The opening between the right atrium and the right ventricle is guarded by a valve called______Whereas______ guards the opening of the left atrium and the left ventricle -

MEDIUM
Represent the union of two sets by Venn diagram for each of the following.
is a prime number between and
is an odd number between and

MEDIUM
Read the following statements carefully.
(i) In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body parts from where deoxygenated blood is returned to the heart.
(ii) The openings of the right and the left ventricles into pulmonary artery and aorta respectively are provided with the mitral valves.
(iii) The nodal musculature has the ability to generate action potentials without any external stimuli, i.e., it is auto excitable.
(iv) The T-wave of ECG represents depolarisation of the ventricles.
Which of the above two statements are incorrect?

MEDIUM
If due to some injury, the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

MEDIUM
Select the incorrect statement from the following:

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Explain the following terms : Tricuspid valve

EASY
'Dup' sound is produced during closure of

MEDIUM
Match the items given in Column I with those in Column II and select the correct option given below.
Column I | Column II | ||
A | Tricuspid valve | (i) | Between left atrium and left ventricle |
B | Bicuspid valve | (ii) | Between right ventricle and pulmonary artery |
C | Semilunar valve | (iii) | Between right atrium and right ventricle |

EASY
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially nonfunctional, what will be the immediate effect?

MEDIUM
valve is present at the opening of coronary sinus into right atrium.

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Which of the following is not associated with atrioventricular valves?

EASY
Cotyledons are also called-

MEDIUM
Read the following (A-D) statements :-
A. The tricuspid and bicuspid valves are opened during joint diastole.
B. Atrial systole decrease the flow of blood into the ventricles by about 30 percent.
C. Ventricular systole increases the ventricular pressure.
D. Ventricular pressure falls causing the closure of semilunar valves.
How many of the above statements are correct:-

