Exploring the Human Respiratory System

How many times do humans breathe in a day?

• 8,000 to 12,000 times

• 16,000 to 24,000 times

• 20,000 to 30,000 times

• 10,000 to 15,000 times

Which parts are included in the upper respiratory system?

• Trachea, Bronchi, Lungs

• Nasal cavity, Pharynx, Larynx

• Alveoli, Bronchioles, Lungs

• Diaphragm, Ribcage, Lungs

What is the function of the pharynx?

• Acts as a passage for air and food

• Regulates breathing rate

• Produces sound

• Filters dust and microbes

Which bones form the framework of the nasal cavity?

• Mandible, Zygomatic, Temporal, Parietal

• Hyoid, Palatine, Inferior Nasal Concha, Vomer

• Frontal, Maxilla, Ethmoid, Vomer

• Sphenoid, Occipital, Nasal, Lacrimal

What supports the trachea and allows it to change shape?

• Bone structures

• Muscular rings

• Elastic fibers

• C-shaped cartilaginous rings

How many lobes does the right lung have?

• Two

• Three

• Four

• Five

Where does the exchange of oxygen and carbon dioxide occur in the lungs?

• Pharynx

• Alveoli

• Trachea

• Bronchi

What is the process of moving air in and out of the lungs called?

• Cellular respiration

• External respiration

• Internal respiration

• Pulmonary ventilation

Which part of the brain regulates breathing?

• Medulla oblongata

• Cerebellum

• Hypothalamus

• Cerebrum

What is the normal breathing rate per minute?

• 15 to 18 breaths

• 12 to 15 breaths

• 10 to 12 breaths

• 8 to 10 breaths