Respiratory System Quiz

What is the purpose of the respiratory system?

• To digest food and absorb nutrients

• To supply the blood with oxygen and remove CO2 and waste from the blood

• To pump blood throughout the body

• To control body temperature

What is the process of taking air into the body called?

• Circulation

• Digestion

• Breathing

• Filtration

Where does air enter the body at the start of the breathing process?

• Through the esophagus

• Via the nasal cavities and buccal cavity

• Directly into the lungs

• Through the pores of the skin

What is the function of the hairs and mucus in the nasal cavities?

• To cool the air down

• To produce sound

• To trap foreign particles and keep the air warm

• To absorb oxygen

What is the structure of the trachea that helps to keep it open to air?

• It is composed of smooth muscle fibers

• It is a flexible tube without any rings

• It is composed of c-shaped cartilaginous rings

• It is a solid tube made of bone

What lines the respiratory tract and helps to prevent food and drink from entering the lungs?

• Mucus

• Cilia

• Saliva

• Enzymes

What is the larynx composed of?

• Cartilage and muscle tissue

• Elastic ligaments

• Bone and cartilage

• Muscle fibers

How are sounds produced in the larynx?

• When air is exhaled through the nose

• When air passes the larynx

• When the larynx vibrates on its own

• When muscles in the chest contract

What happens during speech in relation to the vocal chords?

• The vocal chords relax completely

• The vocal chords are removed from the airway

• Muscles contract and move the vocal chords closer together

• The vocal chords expand and separate

Which statement is true regarding the vocal chords of males?

• Males typically have thinner vocal chords which produce higher voices

• Males typically have thicker vocal chords which produce lower voices

• Males typically have the same vocal chords as females

• Males typically do not have vocal chords