Tag: transport in mammals

Questions Related to transport in mammals

Neurogenic heart is characteristic of

  1. Humans

  2. Lower invertebrates

  3. Rat

  4. Rabbit.


Correct Option: B

Pulmonary artery carries

  1. Pure blood from heart to lungs

  2. Pure blood from heart to stomach

  3. Impure blood from heart to lungs

  4. Pure blood from lungs to heart.


Correct Option: C

Pulmonary artery drains deoxygenated blood from

  1. Right ventricle

  2. Right atrium

  3. Left atrium

  4. Left ventricle.


Correct Option: A

Pulmonary vein carries

  1. Deoxygenated blood

  2. Oxygenated blood

  3. Mixed blood

  4. None of the above.


Correct Option: B

Bundle of His passes stimulus of contraction to

  1. AV node

  2. SA node

  3. Purkinje fibres

  4. Atrium.


Correct Option: C

Oxygenated blood is carried to heart by

  1. Pulmonary vein

  2. Pulmonary artery

  3. Hepatic portal vein

  4. Renal vein.


Correct Option: A

To which organ does femoral artery supply blood

  1. Dorsal part of thigh

  2. Ventral part of hindlimb

  3. All parts of hind limb

  4. Rectum.


Correct Option: A

Volume of blood that enters aorta with each ventricular systole is

  1. Vital capacity

  2. Cardiac style

  3. Stroke volume

  4. Cardiac output.


Correct Option: C

Left auricle receives pure blood from

  1. Pulmonary veins

  2. Pulmonary artery

  3. Superior vena cava

  4. Inferior vena cava.


Correct Option: A

The pulmonary artery carries 

  1. Deoxygenated blood to the lungs

  2. Oxygenated blood to brain

  3. Oxygenated blood to the lungs

  4. Deoxygenated blood to the kidney


Correct Option: A
Explanation:
  • Blood enters the heart through two large veins, the inferior and superior vena cava brought from different parts of the body.
  • This oxygen-deficient blood from the body is emptied into the right atrium of the heart which is further pumped to the right ventricle. 
  • As the right ventricle contracts, blood is pumped into the pulmonary artery and to the lungs where it is oxygenated.
  • Thus, the pulmonary arteries carry deoxygenated blood from the right ventricles to the lungs. So, the correct answer is 'Deoxygenated blood to the lungs'.