Respiratory System

Which of the following is NOT a part of the respiratory system?

• Nose

• Pharynx

• Stomach

• Larynx

What is the function of the lungs in the respiratory system?

• To filter blood

• To exchange oxygen and carbon dioxide

• To digest food

• To produce hormones

Which part of the respiratory system is responsible for voice production?

• Nose

• Pharynx

• Larynx

• Bronchi

Which of the following is a function of the respiratory system?

• Deliver air from the atmosphere into the lungs

• Transfer nutrients into the bloodstream

• Remove waste products from the kidneys

• Produce red blood cells

Which of the following processes is involved in the respiratory system?

• Remove carbon dioxide from the blood

• Absorb nutrients from food

• Produce white blood cells

• Filter waste from the blood

What happens to the intercostal muscles and diaphragm during expiration?

• They contract

• They relax

• They expand

• They remain unchanged

During inspiration, what happens to the ribs and diaphragm?

• Ribs drop and diaphragm adopts its relaxed dome-like shape

• Ribs go upwards and outwards, diaphragm contracts downwards

• Ribs remain stationary, diaphragm contracts upwards

• Ribs go inwards, diaphragm relaxes

What effect does inspiration have on the size of the thoracic cavity?

• Decreases the size of thoracic cavity

• Increases the size of thoracic cavity

• No change in the size of thoracic cavity

• Alternates the size of thoracic cavity

What happens to air pressure between the lungs during expiration?

• Decreases to less than that of air outside the body

• Increases exceeding that of air outside the body

• Remains the same as that of air outside the body

• Fluctuates randomly

What is the general principle of gas movement mentioned in the document?

• Gases always move from areas of low pressure to high pressure

• Gases always move from areas of high pressure to lower pressure

• Gases move randomly without any pressure gradient

• Gases do not move based on pressure differences