Portal Circulation

Q.

The ___(i)___ carries blood from the digestive tract to the liver and ____(ii)_____carries blood from the liver to the inferior vena cava.

1. (i)Hepatic artery, (ii) hepatic portal vein

2. (i)Hepatic vein, (ii)hepatic portal vein

3. (i)Hepatic portal vein, (ii)hepatic vein

4. (i)Hepatic portal vein, (ii)hepatic artery

Q.

Statement 1: Portal vein begins from one organ as capillaries and ends in another organ as a vein.

Statement 2: The hepatic portal system is an example of the portal circulation.

1. Both the statements are false.

2. Statement 1 is true but statement 2 is false.

3. Statement 1 is false but statement 2 is true.

4. Both the statements are true.

Q.

Assertion (A): A complex of blood vessels beginning and ending in capillaries through which blood circulates before returning to the heart is called a portal system.

Reason (R): All mammals have a hepatic portal system.

1. Both A and R is true and R is the correct explanation of A.

2. Both A and R is true but R is not the correct explanation of A.

3. Both A and R is false.

4. A is true but R is false.

Q. Sort the flow of blood in coronary circulation. (Top to Bottom)

1. Coronary artery
2. Coronary veins
3. Aorta
4. Cardiac muscles
5. Right atrium

Q.

Atrio-ventricular septum is made of ___ tisue:

Q.

The function of the coronary circulation is____.

1. To carry blood from the intestines to the liver for glycogen formation.

2. To supply blood to the musculature of heart.

3. To remove deoxygenated blood from intestines.

4. To supply oxygenated blood to the thymus.

Q.

What happens during systole?

Q.

Identify the labelled parts (I), (II) and (III) depicted in the image.

1. (I) Inferior vena cava, (II) Aorta, (III) Hepatic portal vein

2. (I) Aorta, (II) Hepatic portal vein, (III) Inferior vena cava

3. (I) Hepatic portal vein, (II) Aorta, (III) Inferior vena cava

4. (I) Hepatic portal vein, (II) Inferior vena cava, (III) Aorta

Q.

Name the blood vessel which supplies blood to the liver.

Q.

Identify the labelled parts depicted in the image .

1. 1 Inferior vena cava, 2. Aorta, 3. Hepatic portal vein

2. 1. Aorta, 2. Hepatic portal vein, 3. Inferior vena cava

3. 1. Hepatic portal vein, 2. Aorta, 3. Inferior vena cava

4. 1. Aorta, 2. Hepatic portal vein, 3. Inferior vena cava

Q.

Lacteals are lymphatic vessels found in the

1. Bone marrow

2. Mammary glands

3. Digestive tract

4. Gonads

Q. Name the blood vessel which supplies blood to the liver.

Q.

Statement 1: A complex of blood vessels beginning and ending in capillaries through which blood circulates before returning to the heart is called a portal system.

Statement 2: All mammals have a hepatic portal system.

1. Both A and R is true and R is the correct explanation of A.

2. Both A and R is true but R is not the correct explanation of A.

3. Both A and R is false.

4. A is true but R is false.

Q. Given below is a highly schematic diagram of the human blood circulatory system.
Which part (state the number) represents the heart? Give reason in support of your answer.

Q. Give the biological technical term for the vein which drains the blood from the intestine to the liver.

Q. Given below is a highly schematic diagram of the human blood circulatory system.
Which numbers represent the following respectively?
Aorta
Renal Vein
Hepatic portal vein
Stomach
Pulmonary artery
Stomach
Superior vena cava
Dorsal aorta

Q. Which one of the following blood vessels in mammals would normally carry the largest amount of urea?

1. Hepatic portal vein
2. Hepatic vein
3. Renal artery
4. Hepatic artery

Q. Sort the route of blood in a hepatic portal system. (Top to Bottom)

1. Vena cava
2. Hepatic veins
3. Portal vein
4. Veins
5. Capillaries

Q. Assertion :In fishes, heart is venous Reason: Only veins are present in the heart of fishes

1. If both the assertion and the reason are true and the reason
   is a correct explanation of the assertion
2. If both the assertion and reason are true but the reason is
   not a correct explanation of the assertion
3. If the assertion is true but the reason is false
4. If both the assertion and reason are false

Q. Very short answer type.
Which blood vessel carries blood from intestine to liver?

Q. Very short answer type.
An action potential consists of depolarization and repolarization. Which are the channels open during depolarization and during repolarization?

Q. Which one of the following vein breaks up into capillaries?

1. Renal vein
2. Hepatic portal vein
3. Pelvic vein
4. Pulmonary vein

Q. Hepatic portal system starts from

1. Liver to heart
2. Kidney to liver
3. Liver to kidney
4. Gastrointestinal tract to liver

Q.

If coronary circulation is removed from the human body, which of the following effects do you think it will have on the body?

1. Nutrients from digestive tract will not be transported to the liver.

2. Mixing of deoxygenated and oxygenated blood in the heart.

3. No transmission of nerve impulses from vasomotor centre to the sympathetic nerves.

4. The heart muscles will stop contracting.

Q. Given below is a diagrammatic representation of the duct systems of Liver, gall bladder and pancreas. If the duct labelled as 'A' is blocked which of the following will not occur in body ?

Q. Very short answer type.
Name the heart sounds as heard by stethoscope, caused due to:
closure of semilunar valves at the beginning of ventricular diastole.

Q.

The blood vessels that carry blood from organ to organ are called ___.

1. veins

2. capillaries

3. portal veins

4. arteries

Q. Mark the correct statement about lymph.

1. It Maintains the volume of blood.
2. Both A and B are true for lymph
3. It destroys the invading microbes.
4. None of these

Q. Explain the flow of blood through the hepatic portal system

Q. Which of the following pairs are correctly matched?
A. Crocodile 4-chambered heart
B. Sea Urchin Parapodia
C. Obelia Metagenesis
D. Lemur Thecodont

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