Upper respiratory tract Clinical Anatomy

The cribriform plate forms the roof of the nasal cavity. Which cranial bone does it belong to?

• Temporal bone

• Frontal bone

• Ethmoid bone

• Sphenoid bone

Answer explanation

What is the epithelial lining of the respiratory region of the nasal cavity?

• Simple squamous

• Olfactory cells

• Pseudostratified ciliated

• Stratified columnar

Which branch of the vagus nerve provides motor innervation to the cricothyroid muscle of the larynx?

• Internal laryngeal

• Recurrent laryngeal

• Inferior laryngeal

• External laryngeal

During forced respiration, the rima glottidis of the larynx is widened to increase airflow into the trachea. Which muscle contracts to produce this affect?

• Cricothyroid

• Lateral cricoarytenoid

• Posterior cricoarytenoid

• Vocalis

A patient is seen in the neurosurgery clinic with an MRI-confirmed pituitary adenoma. Surgical resection of the adenoma is planned. When considering the surgical approach, which paranasal sinus provides access the pituitary gland?

• Maxillary

• Ethmoid

• Sphenoid

• Frontal

Which is the largest of the paranasal sinuses?

• Sphenoid sinus

• Ethmoid sinus

• Maxillary sinus

• Frontal sinus

Which of the following upper respiratory tract conditions is congenital?

• Epiglottitis

• Laryngomalacia

• Obstructive sleep Hypopnea