Q. 185.0( 3 Votes )
Match the parts of the heart in Column I with the direction of flow of blood in Column II.
The correct matches should be as follows:
(i) - (a)
(ii) - (d)
(iii) – (f)
(iv) – (b)
(v) - (e)
(vi) – (c)
The complete circulation cycle is given below:
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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)_____.NCERT - Exemplar Science
What are the components of blood?NCERT Science
Fill in the blanks.
i. The blood from the heart is transported to all parts of the body by the _________.
ii. Hemoglobin in present in ______ cells.
iii. Arteries and veins are joined by a network of _____.
iv. The rhythmic expansion and contraction of the heart is called_____.
v. The main excretory product in human beings is ______.
vi. Sweat contains water and ________.
vii. Kidneys eliminate the waste materials in the liquid form called______.
viii. Water reaches great heights in the trees because of suction pull caused by _______.NCERT Science
(a) Name the only artery that carries carbon dioxide-rich blood.
(b) Why is it called an artery if it does not carry oxygen-rich blood?NCERT - Exemplar Science
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in –NCERT - Exemplar Science
Observe Figure 11.2 and answer the given questions: Fig 11.2
(a) Name the instrument.
(b) Label the parts A, B, and C.NCERT - Exemplar Science
Name the organ which is located in the chest cavity with its lower tip slightly tilted towards the left.NCERT - Exemplar Science