The Breathing System

What is the primary organ of the breathing system?

• lungs

• heart

• liver

• stomach

What is the process by which oxygen is taken in and carbon dioxide is expelled?

• Respiration

• Digestion

• Photosynthesis

• Fermentation

What is the name of the muscle that controls breathing?

• biceps

• quadriceps

• diaphragm

• abdomen

What is the role of the diaphragm in the breathing process?

• The diaphragm has no role in the breathing process

• The diaphragm only helps with speaking, not breathing

• The diaphragm is responsible for pumping blood, not breathing

• The diaphragm plays a crucial role in the breathing process by contracting and relaxing to facilitate inhalation and exhalation.

What are the tiny air sacs in the lungs where gas exchange takes place called?

• Alveoli

• Bronchioles

• Pleura

• Trachea

What is the medical term for difficulty breathing?

• apnea

• dyspnea

• hypoxia

• tachypnea

What is the average number of breaths an adult takes per minute at rest?

• 5-10 breaths per minute

• 12-20 breaths per minute

• 25-30 breaths per minute

• 40-50 breaths per minute

What is the term for the volume of air that remains in the lungs after maximum exhalation?

• residual volume

• extra volume

• surplus air

• spare capacity

What is the name of the tube that carries air to the lungs?

• bronchi

• trachea

• esophagus

• pharynx

What is the term for the process of breathing in oxygen and breathing out carbon dioxide?

• respiration

• digestion

• inhalation

• exhalation