Question : Which vein brings clean blood from the lungs into the heart ?
Option 1: Renal Vein
Option 2: Pulmonary Vein
Option 3: Vena Cava
Option 4: Hepatic Vein
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Correct Answer: Pulmonary Vein
Solution : The correct answer is pulmonary vein.
Pulmonary vein carry clean blood from lungs to heart. Although veins carry impure blood from body organs to heart but pulmonary vein carries pure blood from lungs to heart and from there arteries carries it to various parts of body. On the contrary pulmonary artery carries impure blood from heart to lungs. This system of circulation is known as pulmonary circulation.
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Question : Which among the following carries impure blood to human heart ?
Option 1: Aorta
Option 2: Pulmonary vein
Option 3: Pulmonary arteries
Option 4: Vena Cava
Question : Thalassemia is a hereditary disease. It affects
Option 1: Blood
Option 2: Spleen
Option 3: Lungs
Option 4: Heart
Question : Heart attack occurs due to :
Option 1: Bacterial attack on the heart
Option 2: Stopping of heart beat
Option 3: Lack of blood supply to the heart itself
Option 4: Impairment of heart's working due to unkhown reasons
Question : Which of the following blood cells is compulsory for blood coagulation ?
Option 1: Platelets
Option 2: Red Blood Corpuscles
Option 3: White Blood Corpuscles
Option 4: Lymphocites
Question : With which of the following body organs is 'pace-maker' associated?
Option 1: Liver
Option 2: Brain
Option 3: Heart
Option 4: Lungs
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