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Body fluids and Circulation mcq. We covered all the Body fluids and Circulation mcq in this post for free so that you can practice well for the exam.
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mcq on Body fluids and Circulation for NEET Students
Choose the correct option based on the statements given.
Statement I: The average lifespan of red blood cells is around 30 days.
Statement II: The spleen acts as the site where old RBCs are broken down.
(A) Only Statement I is true
(B) Only Statement II is true
(C) Both statements are true
(D) Both statements are false
Option b – Only Statement II is true
Why can a person with blood Group B not donate blood to someone with blood group A?
(A) Because both have different types of antibodies
(B) Due to incompatible blood groups causing no antigen-antibody reaction
(C) Because both individuals have the same type of antibodies
(D) Because both individuals share identical antigens
Option a – Because both have different types of antibodies
Complete the following analogy:
Tricuspid valve : right atrium and right ventricle :: Bicuspid valve : ?
(A) Left atrium and left ventricle
(B) Right and left ventricles
(C) Left atrium and right ventricle
(D) Right atrium and left ventricle
Option a – Left atrium and left ventricle
In adults, red blood cells are primarily produced in:
(A) Yellow bone marrow
(B) Spleen
(C) Liver cells
(D) Red bone marrow
Option d – Red bone marrow
Identify the one that differs in terms of the number of heart chambers:
(A) Turtle
(B) Chameleon
(C) Lizard
(D) Crocodile
Option d – Crocodile
Cardiac output refers to:
(A) Amount of blood ejected by each ventricle per minute
(B) Higher values when a person is resting
(C) Volume of blood pumped by each atrium every second
(D) Amount of blood entering the aorta
Option a – Amount of blood ejected by each ventricle per minute
Which of the following is correctly stated?
(A) Plasma = Serum – Clotting factors
(B) Serum = Plasma + Fibrinogen
(C) Lymph = Plasma + RBCs
(D) Blood = Plasma + Formed elements
Option d – Blood = Plasma + Formed elements
Which situation can lead to erythroblastosis foetalis?
(A) Rh-negative mother and Rh-negative father
(B) Rh-negative mother with Rh-positive fetus
(C) Both mother and father are Rh-positive
(D) Rh-positive mother and Rh-negative fetus
Option b – Rh-negative mother with Rh-positive fetus
Choose the correct option after reading the statements below:
Statement I: Thrombokinase is responsible for converting prothrombin to thrombin.
Statement II: Fibrin is formed when thrombin acts on inactive fibrinogen in plasma.
(A) Statement I is correct, Statement II is incorrect
(B) Statement II is correct, Statement I is incorrect
(C) Both statements are correct
(D) Both statements are incorrect
Option c – Both statements are correct
The hepatic portal vein transports blood from the …… to the liver.
(A) Pancreas
(B) Lungs
(C) Intestines
(D) Kidneys
Option c – Intestines
Find the incorrect statement regarding blood vessels:
(A) Tunica media is thinner in veins
(B) Tunica intima lines the interior of blood vessels
(C) Tunica intima is composed of fibrous connective tissue and collagen
(D) Tunica media is sandwiched between tunica intima and tunica externa
Option c – Tunica intima is composed of fibrous connective tissue and collagen
Which of the following serves as the heart’s natural pacemaker?
(A) AV node
(B) SA node
(C) Bundle of His
(D) Chordae tendinae
Option b – SA node
Identify the odd one based on the presence of a nucleus:
(A) Monocyte
(B) Eosinophil
(C) Neutrophil
(D) Erythrocyte
Option d – Erythrocyte
In an ECG, the ‘P wave’ signifies:
(A) Ventricular repolarization
(B) Atrial depolarization
(C) Ventricular depolarization
(D) Atrial repolarization
Option d – Atrial repolarization
What is considered a normal blood pressure?
(A) 90/50 mm Hg
(B) 120/80 mm Hg
(C) 140/90 mm Hg
(D) 160/90 mm Hg
Option b – 120/80 mm Hg
Which of the following is not categorized as a granulocyte?
(A) Basophil
(B) Eosinophil
(C) Neutrophil
(D) Lymphocyte
Option d – Lymphocyte
The atrioventricular (AV) node is located:
(A) Near the left ventricle
(B) Bottom-left of the left atrium
(C) Bottom-left of the right atrium
(D) Near the right ventricle
Option c – Bottom-left of the right atrium
In an ECG, which wave represents the repolarization of ventricles?
(A) P wave
(B) T wave
(C) QR wave
(D) QRS complex
Option b – T wave
On average, how many times does a human heart beat per minute?
(A) 44
(B) 72
(C) 150
(D) 200
Option b – 72
Select the correctly matched pair regarding WBC types and their proportions:
(A) Basophils – 6 to 8%
(B) Neutrophils – 0.5 to 1%
(C) Monocytes – 60 to 65%
(D) Eosinophils – 2 to 3%
Option d – Eosinophils – 2 to 3%
Another name for blood platelets is:
(A) Monocytes
(B) Leucocytes
(C) Thrombocytes
(D) Lymphocytes
Option c – Thrombocytes
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