Final Exam

The conducting passageways of the respiratory system include all of the following structures EXCEPT:

• trachea

• nose

• alveoli

• pharynx

• larynx

What is the role of the mucus in the nasal cavity?

• act as a resonance chamber for sound

• increase the air turbulence in the nasal cavity

• trap incoming bacteria and other foreign substances

• lighten the skull

The nasal cavity is separated from the oral cavity by:

• both the hard and soft palate

• the nasal conchae

• the hard palate

• the soft palate

The flap of elastic cartilage that protects food from entering the larynx when swallowing is:

• thyroid cartilage

• epiglottis

• trachea

• Adam's apple

Following the removal of the larynx, a person would be unable to:

• eat

• breathe

• sneeze

• speak

A very deep inspiration that ventilates all alveoli is:

• crying

• yawning

• coughing

• sneezing

The bluish cast that results from inadequate oxygenation of the skin and mucosa is called:

• xanthosis

• cyanosis

• albinism

• erythema

Cessation of breathing is called:

• dyspnea

• apnea

• eupnea

• tachypnea

The thick layer of the heart wall that contains contractile muscle tissue is the:

• endocardium

• epicardium

• myocardium

• parietal pericardium

Which area of the heart receives blood from the systemic veins:

• right ventricle

• left atrium

• right atrium

• left ventricle