- 1(current)
Q. No.Figure shows a schematic plan of blood circulation in humans with labels A to D. Identify the label and give its function/s.
| 1. | B-Pulmonary artery- takes blood from heart to lungs, PO2 = 90mm Hg |
| 2. | C-Vena Cava- takes blood from body parts to right auricle, PCO2 = 45mm Hg |
| 3. | D-Dorsal aorta- takes blood from heart to body parts, PO2 = 95mm Hg |
| 4. | A- Pulmonary vein - takes impure blood from body parts, PO2 = 60mm Hg |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
| 1. | B - Capillary - thin without muscle layers and well two-cell thick |
| 2. | C - Vein - thin-walled and blood flows in jerks./spurts |
| 3. | D - Pulmonary vein - takes oxygenated blood to heart PO2=95 mm Hg |
| 4. | A - Artery- thick-walled and blood flows evenly |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | carry blood away from the heart to different organs |
| 2. | break up into capillaries which reunite to form a vein |
| 3. | carry blood from one visceral organ to another visceral organ |
| 4. | supply oxygenated blood to the different organs |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyFastest distribution of some injectible material / medicine and with no risk of any kind can be achieved by injecting it into the:
1. arteries
2. veins
3. lymph vessels
4. muscles
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGiven below are four statements (a-d) regarding human blood circulatory system:
| (a) | Arteries are thick-walled and have narrow lumen as compared to veins |
| (b) | Angina is acute chest pain when the blood circulation to the brain is reduced |
| (c) | Persons with blood group AB can donate blood to any person with any blood group under ABO system |
| (d) | Calcium ions play a very important role in blood clotting |
Which two of the above statements are correct?
1. (a) and (b)
2. (b) and (c)
3. (c) and (d)
4. (a) and (d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn humans, blood passes from the post caval to the diastolic right atrium of heart due to:
1. pushing open of the venous valves
2. suction pull
3. stimulation of the sino auricular node
4. pressure difference between the caval and atrium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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