The heat pumps blood to the pulmonary and aortic arches. For this to happen, the four chambers of the heart have to contract in a definite sequence. What is the sequence in which the contraction takes place?
(a) Left ventricle
(b) Right auricle
(c) Right ventricle
(d) Left auricle

(b), (d), (c), (a)

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(a), (c), (b), (d)

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(a), (d), (c), (b)

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(d), (b), (c), (a)

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Solution

The correct option is A (b), (d), (c), (a)
Option: (a)

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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. Match the terms given in Column I with terms in Column II:

Column I	Column II
(i) Left-auricle	(a) Clotting
(ii) Right auricle	(b) Thebasius value
(iii) Left ventricle	(c) Pulmonary vein
(iv) Right-ventricle	(d) Aorta
(v) Fibrin	(e) Pulmonary arch

Given below is a set of five terms. Arrange and rewrite each set of terms in the correct order to be in a logical sequence.
(i) Water molecules, oxygen, grana, hydrogen and hydroxyl ions, protons.
(ii) Right auricle, left ventricle, vena cava, pulmonary vein, lungs, right ventricle, pulmonary artery, aorta, left auricle
(iii) Graafian follicle, oviducal funnel, fallopian tube, ovum uterus
(iv) Metaphase, telophase, prophase, anaphase , interphase
(v) Spongy cell, upper epidermis, stoma, palisade tissue, sub-stomatal space

Q. Fill in the empty boxes with suitable answers with respect to the valves of a mammalian heart.

Valve(s)	Location	Function
Bicuspid valve or Mitral valve	A.	Prevents the backward flow of blood from left ventricle to left auricle
B.	At the right auricular venticular aperture	Regulates the flow of blood from right auricle to right ventricle
Aortic valve	At the base of Aorta	C.
Semilunar valve	D.	Regulates the flow of blood from right ventricle to pulmonary artery

Q. Match the following chambers of the heart with the respective blood vessels:

	Column A		Column B
$1.$	Right atrium	$a .$	Pulmonary vein
$2.$	Left atrium	$b .$	Aorta
$3.$	Right ventricle	$c .$	Superior vena cava
$4.$	Left ventricle	$d .$	Pulmonary artery

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The heat pumps blood to the pulmonary and aortic arches. For this to happen, the four chambers of the heart have to contract in a definite sequence. What is the sequence in which the contraction takes place? (a) Left ventricle (b) Right auricle (c) Right ventricle (d) Left auricle

The correct option is A (b), (d), (c), (a) Option: (a)

The heat pumps blood to the pulmonary and aortic arches. For this to happen, the four chambers of the heart have to contract in a definite sequence. What is the sequence in which the contraction takes place?
(a) Left ventricle
(b) Right auricle
(c) Right ventricle
(d) Left auricle

The correct option is A (b), (d), (c), (a)
Option: (a)