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Body Fluids and Its Circulation question

2013 · Q57
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Body Fluids and Its Circulation question

2013 · Q57

NEETBiologyBody Fluids and Its CirculationMCQ+4 / −1
The figure shows blood circulation in humans with labels A to D. Select the option which gives correct identification of label and functions of the part. NEET 2013 (Karnataka) Biology - Body Fluids and Its Circulation Question 24 English
  1. A
    A - Artery-Thick walled and blood flows evenly
  2. B
    C - Vein-Thin walled and blood flows in jerks/spurts
  3. C
    D - Pulmonary vein-Takes oxygenated blood to heart, pO2 = 95 mmHg
  4. D
    B - Capillary-Thin without muscle layer and wall two cell layers thick
View written solutionFree

Correct answer: C

A- Artery : Carries blood from heart to different body parts. It is thick-walled and elastic. The flow of blood in it is intermittent.
B - Capillary : Nutrients, hormones, gases etc. can diffuse into tissue cells through capillaries and vice versa. It is thin-walled, and only one layer thick resting on basement membrane.
C - Vein : Brings blood from different body parts to the heart. It is thin-walled and acts as low-resistance conduct for blood flow.
D - Pulmonary vein : Two pulmonary veins from each lung transport the oxygenated blood to the left atrium.

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