The figure shows the schematic plan of blood circulation in humans with labels A to D. Identify the option which correctly matches the organ to its function/s

A - Pulmonary vein - takes impure blood from body parts,

P O_{2} = 60

mm Hg

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B - Pulmonary artery - takes blood from heart to lungs,

P O_{2} = 90

mm Hg

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C - Vena Cava - takes blood from body to right auricle,

P C O_{2} = 45

mm Hg

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d - Dorsal aorta - takes blood from heart to body parts,

P O_{2} - 95

mm Hg

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Solution

The correct option is C C - Vena Cava - takes blood from body to right auricle, $P C O_{2} = 45$ mm Hg
In this diagram
A - Pulmonary vein - takes pure blood from lungs to heart, $P O_{2}$ = 95 mm Hg.
B - Dorsal aorta - takes blood from heart to body parts, $P O_{2}$ = 95 mm Hg.
C - Vena cava - takes blood from body to right auricle, $P O_{2}$ = 45 mm Hg.
D - Pulmonary artery - takes blood from heart to lungs, $P O_{2}$ = 40 mm Hg.
Thus, the correct answer is option C.

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Similar questions

Q. Draw the diagram of human heart and label the following parts which
(i) receives deoxygenated blood from vena cava,
(ii) send deoxygenated blood to lung through pulmonary artery,
(iii) receives oxygenated blood from lungs and
(iv) sends oxygenated blood to all parts of the body through aorta.

Match the parts of the heart in Column I with the direction of flow of blood in Column II
$\begin{matrix} C o l u m n I & C o l u m n I I (i) R i g h t V e n t r i c l e & (a) P u m p s d e o x y g e n a t e d b l o o d i n t o t h e p u l m o n a r y a r t e r y (i i) P u l m o n a r y V e i n s & (b) T a k e s d e o x y g e n a t e d b l o o d (i i i) L e f t A t r i u m & (c) R e c e i v e s b l o o d f r o m d i f f e r e n t p a r t s o f t h e b o d y . (i v) P u l m o n a r y A r t e r i e s & (d) B r i n g o x y g e n a t e d b l o o d f r o m l u n g s t o t h e h e a r t . (v) L e f t V e n t r i c l e & (e) P u m p s b l o o d i n t o t h e a o r t a . (v i) R i g h t A u r i c l e & (f) R e c e i v e s d e o x y g e n a t e d b l o o d f r o m t h e p u l m o n a r y v e i n s . \end{matrix}$

Q. Blood from the lungs enters the heart through the
(a) pulmonary artery
(b) pulmonary vein
(c) aorta
(d) vena cava

Q. Match the blood vessels of Column (A) with their functions in Column (B) with respect to the human heart.

\begin{matrix} C o l u m n (A) & C o l u m n (B) a . V e n a c a v a & (i) T a k e s a w a y o x y g e n a t e d b l o o d b . P u l m o n a r y v e i n & (i i) B r i n g s d e o x y g e n a t e d b l o o d c . A o r t a & (i i i) T a k e s a w a y d e o x y g e n a t e d b l o o d d . P u l m o n a r y a r t e r y & (i v) B r i n g s o x y g e n a t e d b l o o d \end{matrix}

Q. Match the following

\begin{matrix} Column I & Column II 1.Aorta & i. Carries deoxygenated blood from upper part of the body to the heart 2.Inferior vena cava & ii. Carries oxygenated blood from the lungs to heart 3.Superior vena cava & iii. Carries oxygenated blood from the heart to the other parts of the body 4.Pulmonary vein & iv. Carries deoxygenated blood from lower part of the body to the heart \end{matrix}

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