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

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

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

Match the following columns and select the correct option. Column-I Column-II (a) Eosinophils (i) Immune response ...

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 o...

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;...

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;...

Adult human RBCs are enucleate. Which of the following statement(s) is/are most appropriate explanation for this feature? (1)  They do not n...

The hepatic portal vein drains blood to liver from

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

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

Blood pressure in the pulmonary artery is

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

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

Erythropoiesis starts in

Which one of the following is correct?

Blood pressure in the mammalian aorta is maximum during

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 a human blood cell. Identify it and give its characteristics. ...

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

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? ...

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

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

Given below is the ECG of a normal human. Which one of its components is correctly interpreted below? ...

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

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

Arteries are best defined as the vessels which

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His friend who ...

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

Fastest distribution of some injectible material/medicine and with no risk of any kind can be achieved by injecting it into the

Given below are four statements (i-iv) regarding human blood circulatory system. (i)  Arteries are thick-walled and have narrow lumen as com...

The haemoglobin content per 100 ml of blood of a normal healthy human adult is

If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?

Which two of the following changes (i $$-$$ iv) usually tend to occur in the plain dwellers when they move to high altitudes (3, 500 m or more)? (i)&n...

There is no DNA in

In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?

Compared to blood our lymph has

Globulins contained in human blood plasma are primarily involved in

In humans, blood passes from the post caval to the diastolic right atrium of heart due to

The most active phagocytic white blood cells are

Which type of white blood cells are connected with the release of histamine and the natural anticoagulant heparin?

A drop of each of the following, is placed separately on four slides. Which of them will not coagulate?

Which one of the following has an open circulatory system?

You are required to draw blood from a patient and to keep it in a test tube for analysis of blood corpuscles and plasma. You are also provided with th...

The cardiac pacemaker in a patient fails to function normally. The doctors find that an artificial pacemaker is to be grafted in him. It is likely tha...

Bundle of His is a network of

In the ABO system of blood groups, if both antigens are present but no antibody, the blood group of the individual would be

Impulse of heart beat originates from

Which of the following statements is true for lymph?

What is correct for blood group O?

Differennce between pulmonary artery and pulmonary vein is that, the pulmonary artery has

In which point, pulmonary artery is different from pulmonary vein?

Which statement is true for WBC?