Which of the following is responsible in the distribution of nutrients, dissolved gases and materials into the different parts of the body?

• Digestive System

• Respiratory System

• Circulatory System

• Immune System

Which of the following statement is TRUE about arteries?

• Some of the arteries are thin-walled that can withstand low pressure of the blood.

• The deoxygenated gas is brought by all the arteries which will be eliminated through respiration

• All arteries carry blood away from the heart to the different parts of the body.

• The valves are present in these structures that are inferior towards the heart.

Which of the following body organs do not belong in the group based on their coordinated function?

• Trachea

• Bronchioles

• Alveoli

• Capillaries

Ela already finished her exercise. Which of the following mechanisms does not satisfy with the meaning of exhalation?

• Air moves into the lungs

• Ribs move out

• Diaphragm moves up

• Chest space becomes larger

What is the main important role of bicuspid and triscuspid valve as one of the main parts of the heart?

• They serve as the doors and prevent the back flow of the flood from the start

• They maintain the internal temperature of the heart in different pressures.

• They pump blood towards the lungs for the exchange of the gases

• They filter the entrance and exit of the different substances in the heart.

The network of channels that convey blood to all parts of the body.

• heart

• blood vessels

• blood

• lungs

The cone-shaped organ of respiration in humans. It completely fills the spaces of the chest cavity and is surrounded by the rib cage

• 
  lungs

• 
  nose

• pharynx

• airsacs

The receiving chambers of the heart.

• Atria

• 
  Ventricle

• Capillaries

• Valve

The smallest and most numerous blood vessels.

• Capillaries

• Veins

• Arteries

• Valves

It is the largest artery.

• Arterioles

• Aorta

• venules

• Vena cava