ANATOMY OF URT

What structure keeps the nasopharynx open and prevents it from collapsing?

• Thyrohyoid ligament

• Pharyngobasilar fascia

• Soft palate

• Cricothyroid ligament

Answer explanation

Which bones form the posterior part of the nasal septum?

• Palatine and sphenoid

• Nasal and frontal bones
  

• Maxilla and inferior concha

• Vomer and perpendicular plate of ethmoid

Answer explanation

Which sinuses open into the middle meatus of the nasal cavity?

• Sphenoidal

• Maxillary

• Posterior ethmoidal

• Frontal

Answer explanation

Inflammation of the paranasal sinuses can easily occur because:

• They are lined by keratinized epithelium

• They are isolated from the nasal cavity

• They are continuous with the nasal cavity

• They have no drainage system

Answer explanation

The soft palate prevents:

• Food from entering the larynx

• Food from regurgitating into the nasal cavity

• Nasal breathing

• Air from entering the lungs

Answer explanation

The sulcus terminalis separates:

• Oral and pharyngeal parts of the tongue

• Hard and soft palate

• Pharynx and larynx

• Tongue and epiglottis

Answer explanation

Relaxation of the genioglossus muscle during deep sleep can lead to:

• Cough reflex

• Hoarseness

• Difficulty swallowing

• Obstructive sleep apnea

Answer explanation

The movable part of the external nose is composed mainly of:

• Elastic cartilage

• Hyaline cartilage

• Fibrocartilage

• Bony plates

Answer explanation

The piriform fossa is located in the:

• Nasopharynx

• Oropharynx

• Laryngopharynx

• Oral cavity

Answer explanation

The aryepiglottic folds form:

• The floor of the larynx

• The vocal cords

• The wall of the trachea

• The sides of the laryngeal inlet

Answer explanation