Question : Oxygenated blood is carried by _____.

Option 1: pulmonary vein

Option 2: pulmonary artery

Option 3: hepatic portal vein

Option 4: renal vein

Question : ______ are the vessels which carry blood away from the heart to various organs of the body.

Option 1: Veins

Option 2: Tracheas

Option 3: Arteries

Option 4: Plasma

Question : _______ are the vessels which carry carbon dioxide-rich blood back to the heart.

Option 1: Veins

Option 2: Neurons

Option 3: Capillaries

Option 4: Arteries

Question : which of the following is correct about Insulin?

Option 1: increases blood sugar

Option 2: decreases blood sugar

Option 3: constricts blood vessels

Option 4: stimulates lactation

Question : Which among the following organs in the human body is most affected by Pneumonia disease?

Option 1: Kidneys

Option 2: Urinary bladder

Option 3: Heart

Option 4: Lungs