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Circulatory System - 2

Description: 20
Number of Questions: 15
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Tags: 20 Composition of Blood Circulatory System
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When can Erythroblastosis foetalis occur?

  1. Man is Rh positive and woman is Rh negative

  2. Man is Rh positive and woman is Rh positive

  3. Man is Rh negative and woman is Rh negative

  4. Man is Rh negative and woman is Rh positive

  5. Blood group of the man is O positive


Correct Option: A
Explanation:

Erythroblastosis foetalis can occur when man is Rh positive and woman is Rh negative.

The chief function of lymph nodes in mammals is to _________.

  1. produce enzymes

  2. produce hormones

  3. destroy pathogens

  4. destroy old RBC

  5. production of RBC


Correct Option: C
Explanation:

The chief function of lymph nodes in mammals is to destroy pathogens.

Which of the following is odd man out?

  1. RBC

  2. ATP

  3. Granuloctes

  4. Platelets

  5. Agranulocytes


Correct Option: B
Explanation:

Adenosine triphosphate. It is not a kind of blood cell, it is a form of energy.

The process in which the WBCs squeeze through the walls of the capillaries into the tissue spaces is _________.

  1. dialysis

  2. phagocytosis

  3. diapedesis

  4. diffusion

  5. active transport


Correct Option: C
Explanation:

The process in which the WBCs squeeze through the walls of the capillaries into the tissue is diapedesis.

An instrument, which is used to hear heart sounds is ________.

  1. ECG

  2. EEG

  3. EMG

  4. Stethoscope

  5. Thermocouple


Correct Option: D
Explanation:

Stethoscope is an instrument,  which is used to hear heart sounds.

Which of the following pairs of blood cells are agranulocytes?

  1. neutrophils and basophils

  2. basophils and eosinophils

  3. lymphocytes and basophils

  4. monocytes and eocinophils

  5. lymphocytes and monocytes


Correct Option: E
Explanation:

Lymphocytes and Monocytes are agranulocytes.

What is the approximate weight of heart of a healthy average man?

  1. 300 gm (approx.)

  2. 200 gm (approx.)

  3. 350 gm (approx.)

  4. 400 gm (approx.)

  5. 150 gm (approx.)


Correct Option: A
Explanation:

The weight of the heart of a man is approximately 300 gms.

Which mineral element is essential for the clotting of blood?

  1. Calcium

  2. Sodium

  3. Potassium

  4. Phosphorus

  5. Fluoride


Correct Option: A
Explanation:

Calcium is essential for the clotting of blood.

Which of the following is the name of a fluid that transports fatty acids and glycerols in the body?

  1. Water

  2. Lymph

  3. Serum

  4. Blood

  5. Blood plasma


Correct Option: B
Explanation:

A fluid that transports fatty acids and glycerols in the body is Lymph.

The metallic element in RBCs is ________.

  1. zinc

  2. sodium

  3. silver

  4. aluminium

  5. iron


Correct Option: E
Explanation:

The metallic element in RBCs is Iron.

The phase of cardiac cycle in which the Auricles contract is _______.

  1. ventricular systole

  2. ventricular fibrillation

  3. atricular systole

  4. atricular diastole

  5. ventricular diastole


Correct Option: C
Explanation:

The phase of cardiac cycle in which the Ventricles contract is Ventricular systole.

Which of the following statements is not correct with respect to the arteries?

  1. They carry blood from the heart to different organs of the body.

  2. They contain oxygenated blood.

  3. Blood flows rapidly with jerks under pressure.

  4. The walls are thick and elastic.

  5. Valves are present.


Correct Option: E
Explanation:

This statement is wrong. Valves are absent.

Which of the following blood components is used in preventing clotting of blood?

  1. Albumin

  2. Heparin

  3. Fibrinogen

  4. Globulin

  5. Fibrin


Correct Option: B
Explanation:

Heparin also known as unfractionated heparin, a highly sulfated glycosaminoglycan is widely used as an injectable anticoagulant and has the highest negative charge density of any known biological molecule. It can also be used to form an inner anticoagulant surface on various experimental, and medical devices such as test tubes and renal dialysis machines.

The function of WBC is

  1. to distribute heat

  2. to protect enzymes

  3. to cause blood clotting

  4. to destroy bacteria

  5. to distribute hormones to the respective sites


Correct Option: D
Explanation:

WBC act as the line of defense of the body. It destroys bacteria and other germs.

Which of the following options is correct?

  1. RBCs are of several kinds whereas WBCs are of one kind.

  2. Leukocytes show amoeboid movement.

  3. WBC contains hemoglobin.

  4. The walls of auricles are thicker than that of ventricles.

  5. The average life of RBCs in our body is about 120 hours.


Correct Option: B
Explanation:

This statement is correct.

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