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प्रश्न
Give the exact location of the pericardium.
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उत्तर
Outside our chest cavity, the pericardium surrounds the heart walls. It is a double-layered membrane that protects the heart from shock and injury.
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संबंधित प्रश्न
Name any four heart conditions that occur commonly.
Given alongside is a highly diagrammatic sketch of the internal structure of the human heart:
(i) Name the parts numbered 1-11.
(ii) What is the main difference in the quality of blood contained in parts 6 and 7?
Name the heart valve associated with the major arteries leaving the ventricles.
For which of the following reason the left ventricle of human heart has its wall thicker than the right ventricle?
______ is the nodal tissue located in the lower-left corner of the right atrium.
______ is the opening of the upper chamber of the heart into the lower chamber.
Give the location of Pericardial fluid.
Fill in the blanks of the following paragraph using just two words – arteries and veins.
___(a)___ carry oxygen-rich blood from the heart to all parts of the body and ___(b)___ carry carbon dioxide-rich blood from all parts of the body back to the heart. ___(c)___ have thin walls and ___(d)___ have thick elastic walls. Blood flows at high pressure in ___(e)___. Valves are present in ___(f)___ which allow blood to flow only towards the heart. ___(g)___ divide into smaller vessels. These vessels further divide into extremely thin tubes called capillaries. The capillaries join up to form ___(h)___.
The rate of heartbeat is determined by ______.
The diagram below depicts the human heart in one of its phases. Answer the questions that follow:
- Which part of the heart is in the contraction phase?
- Give a suitable reason to justify your answer in (a).
- Distinguish between Systole and Diastole.
