A student traces inspired air posteriorly from the nasal cavity before it enters the more inferior portions of the pharynx. Which region of the pharynx does the air enter directly from the nasal cavity?

A patient develops widespread contraction of airway smooth muscle. Constriction of which portion of the respiratory tree would produce the greatest reduction in airflow because its airway diameter is strongly regulated by smooth muscle?

During forced expiration, contraction of the abdominal wall increases intra-abdominal pressure, helping push the diaphragm superiorly and decrease thoracic volume. Which muscle can actively contribute to this process?

A student traces the arterial supply of an intercostal space from the anterior thoracic wall. Which vessel provides the anterior intercostal arteries through branches originating from the subclavian artery?

During an anatomic review of the mediastinum, a student identifies a cardiovascular structure that lies primarily superior to the transverse thoracic plane separating the superior and inferior mediastina. Which structure is being identified?

Which of the following accurately describes the anatomical significance of the sternal angle?

A nursing assistant’s responsibility for the resident during discharge ends 

A student traces airflow inferiorly through the trachea to the point where the airway first divides at the carina. Which structures receive air immediately after this division?

How will a nursing assistant measure the height of a resident who cannot get out of bed? 

Why might a resident need emotional support during a physical exam?