Biology - Mock Test 67

Question 661

Oval depression of fossa is observed over?

A) interatrial septum B) interventricular septum C) right auriculo-ventricular septum D) left auriculoventricular septum

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Question 662

Origin of heart beat and its conduction is represented by?

A) A V node – Bundle of His – SA node – Purkinje fibres B) SA node – Purkinje fibres – AV node – Bundle of His C) Purkinje fibres – AV node – SA node – Bundle of His D) SA node – AV node – Bundle of His – Purkinje fibres

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Question 663

Open vascular system occurs in?

A) Fish B) Prawns / Periplneta C) Snake D) Earthworm

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Question 664

Open blood vascular system is seen in?

A) Earthworm B) Sepia C) Man D) Cockroach

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Question 665

Number of WBCs present in one mm3 of blood is?

A) 5000 B) 7000 C) 1000 D) 20000

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Question 666

Number of RBC/mm3 in healthy female is?

A) 4.5 – 5.0 million B) 5.5 – 6.0 million C) 3.5 – 4.0 million D) 6.5 – 7.0 million

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Question 667

Muscles which help in circulation of blood of Cockroach are?

A) Cardiac muscles B) Dartos muscles C) Detrusor muscles D) Alary muscles

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Question 668

Murmur occurs due to defect in?

A) Heart valves B) SA node C) AV node D) Purkinje fibres

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Question 669

Mitral/Bicuspid valve connects?

A) Left atrium and left ventricle B) Left atrium and right ventricle C) Right atrium and left ventricle D) Right atrium and right ventricle

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Question 670

Mitral valve is also called?

A) Tricuspid valve B) Semilunar valve C) Bicuspid valve D) None of the above

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