Tag: circulatory system

Quizzes (4) Questions (165)

Questions Related to circulatory system

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Which blood vessels have the smallest diameter?

  1. Capillaries

  2. Arterioles

  3. Venules

  4. Lymphatic
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Capillaries are the smallest blood vessels in the body, with a diameter just large enough to allow red blood cells to pass through in single file. This small size facilitates the efficient exchange of gases, nutrients, and waste products.

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

A vein differ from an artery in having

  1. Strong muscular walls

  2. Narrow lumen

  3. Valves that control direction of blood flow opposite to heart

  4. Valves that control direction of blood flow towards heart
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Veins drain capillaries in the tissues and organs and return the blood to the heart. Veins have a unique structural feature which is not present in arteries. They are equipped with one way valves, that prevent the back flow of blood.

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

In which of the following character a vein differs from an artery?

  1. Having valves to control flow of blood

  2. Having narrow lumen

  3. Having muscular wall

  4. Having pigmented wall to give dark look
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Arteries carry blood from the ventricles (pumping chambers) of the heart out to the capillaries in organs and tissue. The smallest arteries are called arterioles.Veins drain capillaries in the tissues and organs and return the blood to the heart. The smallest veins are the venules.
Veins have a unique structural feature not present in arteries. They are equipped with one-way valves that prevent the backflow of blood.

So, the correct answer is option A.

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

An artery can be distinguished from a vein in having

  1. Thicker wall

  2. Oxygenated blood

  3. More haemoglobin

  4. Both A and B
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • An artery carries oxygenated blood from the heart to different parts of the body. It has thick walls that allow it to withstand the high pressure of the blood.
  • Veins carry the deoxygenated blood from the different parts of the body to the heart which is further carried by the pulmonary artery for oxygenation. The veins have thin and elastic walls.
So, the correct answer is option D.
Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Arteries are the

  1. Blood vessels which carry only oxygenated blood

  2. Blood vessels which carry only deoxygenated blood

  3. Blood vessels which carry blood from the heart to different organs of the body

  4. Blood vessels which carry blood from different organs of the body to the heart
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
Arteries carry oxygenated blood away from the heart to the tissues, except for pulmonary arteries, which carry blood to the lungs for oxygenation (usually veins carry deoxygenated blood to the heart but the pulmonary veins carry oxygenated blood as well.
So, the correct option is 'Blood vessels which carry blood from the heart to different organs of the body'.
Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Deoxygenated blood

  1. Flows to lungs from the left side of the heart.

  2. Flows to lungs from the right side of the heart.

  3. Flows to right side of the heart from the lungs.

  4. Flows to left side of the heart from the.lungs.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Deoxygenated blood leaves the heart, goes to the lungs, and then re-enters the heart. Deoxygenated blood leaves through the right ventricle through the pulmonary artery. From the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.
So, the correct option is 'Flows to lungs from the right side of the heart'
Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

In which of the following ways do the veins differ from the arteries in mammals?

  1. Thicker walls

  2. Deeply present

  3. Carry blood away from heart

  4. Internal valves
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Veins have thin walls as compared to arteries and are superficially located. They carry deoxygenated blood towards the heart and have valves which prevent blood from going backward. Arteries are elastic and thick because they need to transport high-pressure blood while in veins blood flows in low pressure. 

So, the correct answer is option D.

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Blood vessels which carry blood from different organs of the body to the heart

  1. Veins

  2. Arteries

  3. Capillaries

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • These are blood vessels that take blood back to the heart,  this blood contains less oxygen and is rich in waste products that are to be excreted or removed from the body. Veins become larger as they get closer to the heart. The superior vena cava is the large vein that brings blood from the head and arms to the heart, and the inferior vena cava brings blood from the abdomen and legs into the heart.
So, the correct option is 'Veins'.

Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

Blood vessel carrying blood from the lungs to the heart is

  1. Pulmonary artery

  2. Pulmonary vein

  3. Coronary artery

  4. None of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
A blood vessel carrying blood from the lungs to the heart is pulmonary vein. There are four pulmonary veins, two from each lung that drains into the left atrium of the heart. Pulmonary veins are responsible for carrying oxygenated blood from the lungs back to the left atrium of the heart. This differentiates the pulmonary veins from other veins in the body, which are used to carry deoxygenated blood from the rest of the body back to the heart.
So, the correct answer is 'Pulmonary vein'.
Multiple choice evs transportation in living organisms circulatory system and organs blood and blood vessels circulatory system blood pressure

The left auricle opens into left ventricle through an aperture guarded by

  1. Tricuspid valve

  2. Bisuspid valve

  3. Mitral valve

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Bicuspid valve is another name for mitral valve. This valve is the valve between the left atrium and the left ventricle of the heart. It is composed of two triangular flaps, that is located between the left atrium and left ventricle and regulates blood flow between these chambers. 
Therefore, the correct answer is option D.