Body Fluids and Its Circulation

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

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

Which of the following statements is incorrect?

Select the incorrect statement with reference to Rh grouping.
A. Erythroblastosis foetalis is a condition observed having foetus with $\mathrm{Rh}^{-\mathrm{ve}}$ blood and mother with $\mathrm{Rh}^{+\mathrm{ve}}$ blood.
B. Rh antigen is ob...

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

What is the name of the blood vessel that carries deoxygenated blood from the body to the heart in a frog?

A person with blood group ARh– can receive the blood transfusion from which of the following types?
A. BRh\(^–\)
B. ABRh\(^–\)
C. ORh\(^–\)
D. ARh\(^–\)
E. ARh\(^+\)
Choose the correct answer from the options given below :

Diuresis is prevented by:

'Lub' sound of Heart is caused by the _________.

Following are the stages of pathway for conduction of an action potential through the heart
A. AV bundle
B. Purkinje fibres
C. AV node
D. Bundle branches
E. SA node
Choose the correct sequence of pathway from the options given below

Match List I with List II :

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;...

Match List-I with List-II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

Match List-I with List-II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;...

Which of the following statements are correct?
A. Basophils are most abundant cells of the total WBCs
B. Basophils secrete histamine, serotonin and heparin
C. Basophils are involved in inflammatory response
D. Basophils have kidney shaped n...

Match List I with List II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

Arrange the following formed elements in the decreasing order of their abundance in blood in humans:
(a) Platelets (b) Neutrophils (c) Erythrocytes (d) Eosinophils (e) Monocytes
Choose the most appropriate answer from the options given belo...

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

Which one of the following statements is correct?

Given below are two statements:
Statement I : The coagulum is formed of network of threads called thrombins.
Statement II : Spleen is the graveyard of erythrocytes.
In the light of the above statements, choose the most appropriate answer fr...

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

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

Match the following columns and select the
correct option.



Column-I
Column-II




(a) Eosinophils
(i) Immune response


(b) Basophils
(ii) Phagocytosis


(c) Neutrophils
(iii) Release
hist...

The QRS complex in a standard ECG represents

Match the Column-I with Column-II :

Select the correct option.

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

Match the items given in column I with those in
column II and select the correct option given
below.

.tg {border-collapse:collapse;border-spacing:0;width:100%}
.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-st...

Match the items given in column I with those in
column II and select the correct option given
below.

.tg {border-collapse:collapse;border-spacing:0;width:100%}
.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-st...

The hepatic portal vein drains blood to liver from

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature?
(1)  They do not need to reproduce.
(2)  They are somatic cells.
(3)  They do not metabolise.
(4)  All their internal ...

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

Serum differs from blood in

Blood pressure in the pulmonary artery is

In mammals, which blood vessel would normally carry largest amount of urea?

Erythropoiesis starts in

Which one of the following is correct?

Blood pressure in the mammalian aorta is maximum during

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

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

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

How do parasympathetic neutral signals affect the working of the heart?

The figure shows blood circulation in humans with
labels A to D. Select the option which gives correct
identification of label and functions of the part.

The figure shows a human blood cell. Identify
it and give its characteristics.

The diagram given here is the standard ECG of a normal person. The P-wave represents the

The given figure shows schematic plan of blood
circulation in humans with labels A to D.
Identify the label and give its functions?

A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donar?

Which one of the following human organs is often called the ''graveyard'' of RBCs?

'Bundle of his' is a part of which one of the following organs in humans?

Which one of the following statements is correct regarding blood pressure?

Arteries are best defined as the vessels which

Which one of the following plasma proteins is involved in the coagulation of blood?