Body Fluids and Circulation

The WBC count of a person's blood sample is 8000/cu.mm. How many eosinophils and lymphocytes would be in the same blood sample approximately ?

1. 300 – 500/cu.mm and 500 – 700/cu.mm, respectively
2. 300 – 500/cu.mm and 1200 – 1500/cu.mm, respectively
3. 100 – 120/cu.mm and 160 – 200/cu.mm, respectively
4. 160 – 240/cu.mm and 1600 – 2000/cu.mm, respectively

Select the incorrect statements with reference to Rh grouping. Choose the answer from the options given below:

1. A and B only
2. C and D only
3. A and E only
4. B and C only

Which of the following statements is incorrect?

1. Fibrinogen is produced from fibrin
2. Blood coagulates in response to an injury
3. Blood clot consists of fibrins
4. Fibrin is produced from fibrinogen

The number of action potentials generated by sino-atrial node (SAN) in a healthy human is per minute.

1. 120–140
2. 28–30
3. 70–75
4. 100–110

The opening between the right atrium and the right ventricle is guarded by .

1. sino-atrial node
2. bicuspid valve
3. tricuspid valve
4. semilunar valve

Cardiac activities of the heart are regulated by: Choose the correct answer from the options given below :

1. A, C and D Only
2. A, B and D Only
3. A, B and C Only
4. A, B, C and D

Following are the stages of pathway for conduction of an action potential through the heart Choose the correct sequence of pathway from the options given below

1. E-C-A-D-B
2. A-E-C-B-D
3. B-D-E-C-A
4. E-A-D-B-C

A person with blood group ARh- can receive the blood transfusion from which of the following types? Choose the correct answer from the options given below :

1. D and E only
2. D only
3. A and B only
4. C and D only

'Lub' sound of Heart is caused by the .

1. closure of the semilunar valves
2. opening of tricuspid and bicuspid valves
3. opening of the semilunar valves
4. closure of the tricuspid and bicuspid valves

Which of the following statements are correct? Choose the correct answer from the options given below:

1. C and E only
2. B and C only
3. A and B only
4. D and E only

Given below are two statements: In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct
2. Both Statement I and Statement II are incorrect
3. Statement I is correct but Statement II is incorrect
4. Statement I is incorrect but Statement II is correct

Which one of the following statements is correct?

1. The atrio-ventricular node (AVN) generates an action potential to stimulate atrial contraction
2. The tricuspid and the bicuspid valves open due to the pressure exerted by the simultaneous contraction of the atria
3. Blood moves freely from atrium to the ventricle during joint diastole.
4. Increased ventricular pressure causes closing of the semilunar valves.

A unique vascular connection between the digestive tract and liver is called.

1. Hepato-cystic system
2. Hepato-pancreatic system
3. Hepatic portal system
4. Renal portal system

Arrange the following formed elements in the decreasing order of their abundance in blood in humans: Choose the most appropriate answer from the options given below:

1. A, C, B, D, E
2. C, A, B, E, D
3. C, B, A, E, D
4. D, E, B, A, C

Persons with 'AB' blood group are called as "Universal recipients". This is due to :

1. Absence of antibodies, anti-A and anti-B, in plasma
2. Absence of antigens A and B on the surface of RBCs
3. Absence of antigens A and B in plasma
4. Presence of antibodies, anti-A and anti-B, on RBCs

Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?

1. Thrombokinase
2. Thrombin
3. Renin
4. Epinephrine

The QRS complex in a standard ECG represents

1. Repolarisation of ventricles
2. Repolarisation of auricles
3. Depolarisation of auricles
4. Depolarisation of ventricles

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

1. 100 beats per minute
2. 125 beats per minute
3. 50 beats per minute
4. 75 beats per minute

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?

1. A only
2. A, C and D only
3. B and C only
4. D only

The hepatic portal vein drains blood to liver from

1. stomach
2. kidneys
3. intestine
4. heart.

Blood pressure in the pulmonary artery is

1. more than that in the pulmonary vein
2. less than that in the venae cavae
3. same as that in the aorta
4. more than that in the carotid.

Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body.

1. Erythrocytes
2. Leucocytes
3. Neutrophils
4. Thrombocytes

Serum differs from blood in

1. lacking globulins
2. lacking albumins
3. lacking clotting factors
4. lacking antibodies.

Which one of the following animals has two separate circulatory pathways?

1. Whale
2. Shark
3. Frog
4. Lizard

Doctors use stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when

1. AV node receives signal from SA node
2. AV valves open up
3. Ventricular walls vibrate due to gushing in of blood from atria
4. Semilunar valves close down after the blood flows into vessels from ventricles.

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence ?

1. Fibrinogen in plasma
2. Haemocytes
3. Serum albumins
4. Serum globulins

Erythropoiesis starts in

1. spleen
2. red bone marrow
3. kidney
4. liver

Which one of the following is correct?

1. Lymph = Plasma + RBC + WBC
2. Blood = plasma + RBC + WBC + Platelets
3. Plasma = Blood - Lymphocytes
4. Serum = Blood + Fibrinogen

Blood pressure in the mammalian aorta is maximum during

1. systole of the left ventricle
2. diastole of the right atrium
3. systole of the left atrium
4. diastole of the right ventricle.

Person with blood group AB is considered as universal recipient because he has

1. both A and B antigens on RBC but no antibodies in the plasma
2. both A and B antibodies in the plasma
3. no antigen on RBC and no antibody in the plasma
4. both A and B antigens in the plasma but no antibodies.