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प्रश्न
What is the advantage of having a four-chambered heart?
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उत्तर
Four chambered heart has the following advantages
- Clear cut division of labours among different chambers
- Segregation of oxygenated and deoxygenated blood in the heart.
- Efficiency of the heart will increase.
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संबंधित प्रश्न
Sketch and label the ventral view of the human heart.
Fill in the blank with suitable word given below:
The two lower chambers of the heart are called ___________.
Multiple choice question. Tick (✓) the correct choice:
Human heart has
- one auricle and one ventricle.
- two auricles and one ventricle.
- two auricles and two ventricles.
- one auricle and two ventricles.
Describe the function of Heart.
Refer to fig. 7.3 and answer the following questions:
(i) Impure blood is received by
(ii) Which chamber has thickest wall
(iii) Function of bicuspid value
(iv) Function of tricuspid value
Choose the correct answer:
The mammalian heart is ___________
Choose the correct answer:
In mammals the opening of post caval in the right auricle is guarded by _________
The diagram given below represents the human heart in one phase of its functional activities. Study the same and answer the questions that follow:
(i) Name the phase.
(ii) Label the parts 1, 2 and 3
(iii) Which part of the heart is contracting in this phase ? Give a reason to support your answer.
Give Technical Term for the following:
What is the approximate weight of the heart of a man?
State the Function: Bundle of His
Give scientific reason.
Left ventricle is thick than all other chambers of heart.
The free edges of cuspid valves are attached to the papillary muscles of the heart by fibres are called ______.
What is the function of pericardial fluid?
‘Heart of heart’ is called ______
For which of the following reason the left ventricle of human heart has its wall thicker than the right ventricle?
How many times per healthy man beats?
Observe the diagram, Identify the parts labelled as P, Q, R, S. Choose the correct option for the conduction of cardiac impulse.
Where is Bicuspid valve located? What is its function?
The rate of heartbeat is determined by ______.
