Respiratory System

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

• Obtains oxygen and remove carbon dioxide from the body

• Transports oxygen and nutrients to the body cells

• Protects the body from invading organisms

Which of the following is the main muscle for breathing?

• Intercostal Muscle

• Diaphragm

• Sternocleidomastoid

What is the anatomically correct name of the windpipe?

• Pharynx

• Larynx

• Trachea

Which of the following is the function of alveoli in respiration?

• Helping the lungs to stay inflated

• Gaseous exchange

• Relaxation

It is the network of organs and tissues that help you breathe.

• digestive system

• nervous system

• circulatory system

• respiratory system

What is the purpose of the respiratory system?

• takes in oxygen and releases nitrogen

• takes in carbon dioxide and releases oxygen

• takes in oxygen and releases carbon dioxide

• takes in nitrogen and releases oxygen

Openings that pull air from outside your body into your respiratory system.

• sinuses

• mouth and nose

• bronchial tubes

• lungs

Passage connecting your throat and lungs.

• pharynx

• bronchial tubes

• diaphragm

• trachea

Bones that surround and protect your lungs and heart.

• ribs

• diaphragm

• pleura

• larynx

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

• bronchioles

• lung lobes

• alveoli

• capillaries