special senses review

A 35-year-old patient presents with a complete loss of the ability to detect both a cotton swab touch (general sensation) and a sugar solution (taste) on the anterior two-thirds of her tongue. The ability to move the tongue remains intact. This presentation strongly suggests a concurrent lesion affecting the sensory branches of which two cranial nerves/structures?

• Hypoglossal Nerve (CN XII) and Vagus Nerve (CN X)

• Glossopharyngeal Nerve (CN IX) and Facial Nerve (CN VII)

• Lingual Nerve (branch of CN V) and Glossopharyngeal Nerve (CN IX)

• Facial Nerve (CN VII) and Lingual Nerve (branch of CN V)

• Vagus Nerve (CN X) and Glossopharyngeal Nerve (CN IX)

A 6-year-old boy is diagnosed with Ankyloglossia after persistent difficulty with articulation and phonetics. The physical examination confirms that the band of tissue under his tongue is short and restrictive, tethering the tongue to the floor of his mouth. Which procedure is the appropriate intervention for this congenital disorder?

• Surgical stripping to reduce the size of the tongue mass.

• Surgical clipping of the lingual frenulum.

• Insertion of a shunt to manage fluid build-up.

• High-dose steroid therapy to reduce inflammation.

• No treatment is available for this condition.

An 82-year-old woman complains that food is no longer appetizing and sometimes she struggles to tell if her milk has spoiled. She recently got full upper dentures. What is the most likely cause of her symptoms?

• Loss of taste buds due to aging

• Reduced olfactory sensation

• Poor denture fit affecting taste sensation

• Vitamin B12 deficiency

• Oral candidiasis

A nutritionist advises a patient to increase their intake of aged cheese, mushrooms, and high-protein broths to satisfy a fundamental craving that helps guide the body's need for protein. Which specific taste sensation and corresponding receptor ligand are being targeted?

• Sweet, due to carbohydrate receptors

• Bitter, due to alkaloid protection receptors

• Salty, due to mineral ion channels

• Sour, due to Vitamin C receptors

• Umami, due to L-Glutamate receptors

A patient notices a startling black discoloration on their tongue that appeared rapidly over a few days. They report a history of recent diarrhea treated with an over-the-counter medication containing Bismuth subsalicylate. Which of the following is the most likely cause of this reversible discoloration?

• Early-stage Lingual Tonsil hypertrophy

• Acute Iron deficiency anemia

• Undiagnosed oral cancer (Carcinoma)

• Chronic dehydration and fever

• Bismuth-containing stomach preparation

A dentist performs an oral cancer screening and finds a hard, painless, non-healing lump. Based on anatomical predilection, which location of the tongue is the most critical area for the initial development of most oral cancers?

• Floor of the mouth or the lateral borders of the tongue

• The central dorsum (top) of the tongue, near the median sulcus

• The area immediately anterior to the epiglottis

• The Filiform papillae on the tip of the tongue

• The palatine tonsils, due to chronic inflammation

A food scientist is developing a material that mimics the texture and friction of the tongue for a prosthetic device. They are most interested in the rough, conical projections that are the most numerous on the dorsal surface but do not contain any taste buds. Which papillae must their material successfully replicate?

• A. Fungiform papillae

• B. Filiform papillae

• C. Circumvallate papillae

A 25-year-old male competitive swimmer complains of chronic nasal obstruction, primarily affecting the right nostril, and frequent nosebleeds due to turbulent, drying airflow. An ENT specialist notes that the cartilage wall dividing the nasal cavity is visibly bent. This condition is known as:

• Chronic Rhinitis

• Nasal Polyps

• Deviated Nasal Septum (DNS)

• Epistaxis at Kiesselbach’s Plexus

• Ethmoiditis

A patient reports a complete and sudden loss of the sense of smell (anosmia) following a severe head trauma that resulted in a fracture of the ethmoid bone. The fracture likely caused damage to which specific neurological structure?

• Nasolacrimal duct (causing chronic tear leakage)

• Sphenopalatine artery (causing severe epistaxis)

• Inferior concha (blocking airflow)

• Olfactory Nerve (CN I) axons passing through the cribriform plate

• Vomer bone (shifting the nasal septum)

A 3-year-old child is crying heavily. Their nose begins to run almost immediately after their eyes well up. This common physiological observation is directly linked to the drainage of excess tears into which specific area of the nasal cavity?

• Superior meatus, via the ethmoid air cells

• Middle meatus, via the maxillary sinus

• Inferior meatus via the nasolacrimal duct

• Cribriform plate, via the olfactory nerves

• Kiesselbach’s Plexus, via arterial convergence