Circulatory system

What is the role of Circulatory system in our body?

• To transfer waste materials

• To transfer nutrients

• To transfer hormones

• All of the above

Which type of blood vessels carry blood away from heart?

• Veins

• Arteries

• Capillaries

• Pulmonary artery

Why is the blood that flows from the lungs to the heart bright red rather than dark red?

• As it is rich in oxygen

• As it is rich in CO2

• As it flows with high speed

• The lungs add a pigment to the blood

Blood consists of a fluid medium called

Assertion-Ventricles have thicker walls than auricles. Reason-Ventricles are lower most chamber of heart

• Both Assertion and Reason are true and reason is the correct explanation of assertion

• Both Assertion and Reason are true but reason is not the correct explanation of assertion

• Assertion is true Reason is false

• Both Assertion and Reason are false

Oxygen rich blood enter the heart from the lungs via the

When the right atrium contracts what is the status of corresponding right ventricle?

• The ventricle dilates

• The ventricle contracts

• There is no change in the size of ventricles

• Initially the ventricles contract and then relaxes

Blood pressure of a normal healthy adult is

• 140/90

• 110/70

• 120/90

• 120/80

Arteries have thicker walls then veins as

• They carry blood in one direction

• They carry oxygenated blood

• They carry blood under high pressure

• Both option 3 and 4 are correct

Which of the following would be least likely to be found in lymph tissue?

• WBC

• RBC

• Fatty acid

• Proteins