Respiratory&Circulatory system

​ (a)   help form clots to stop bleeding.

• Platelets
• Red blood cells
• White blood cells
• Plasma

Where does the exchange of gases takes place and blood is oxygenated -

• Heart

• Lungs

• Brain

• Kidney

Which of the following does not form part of the circulatory system?

• Heart

• Arteries

• kidney

• blood

Select all the blood vessels among the following?

• Esophagus

• Artery

• Vein

• Capillaries

Which composition of the blood carries oxygen through the body?

• red blood cells

• platelets

• white blood cells

• plasma

This type of blood cell is responsible for fighting disease.

• red blood cell
• plasma
• white blood cell

These are the oxygen carrying cells of the blood.

• red blood cells
• plasma
• white blood cells

The cardiovascular system is made up of which of the following?

• Heart

• Blood Vessels

• Blood

• All of the Above

How many chambers does the heart consist of?

• 2

• 3

• 4

• 6

The valves..

• allow two way direction of blood in the heart

• prevent back-flow of blood

• prevent high pressure exerted in the vessels

• allow lower pressure of blood flow in the heart