Head & Neck — Flashcards

Flashcard 151: What displacement of the globe is typically seen in orbital floor fractures?

Answer: Enophthalmos

Extra: Blowout fractures of the orbital floor result in herniation of orbital contents (fat and inferior rectus muscle) into the maxillary sinus, causing posterior displacement of the eye (enophthalmos). This may also lead to diplopia on upward gaze due to inferior rectus entrapment.

Flashcard 152: What lymph node cluster drains the apex of the tongue, floor of the mouth, and lower lip?_____

Answer: Submental lymph nodes

Flashcard 153: Esophageal carcinoma in the upper third of the esophagus spreads to _____ lymph nodes

Answer: cervical

Flashcard 154: The CD8+ T-cell response in infectious mononucleosis leads to lymphadenopathy, especially in the _____ nodes

Answer: posterior cervical (specific)

Flashcard 155: Small depression in the macula, which is the central point of the retina: _____

Answer: Fovea

Flashcard 156: Which branch of the trigeminal nerve provides general sensation to the jaw and mandibular teeth? _____

Answer: Mandibular (V3)

Flashcard 157: Which lymph node cluster drains the head and neck? _____

Answer: Cervical

Flashcard 158: Fractures to the _____ most commonly result from direct frontal trauma to the orbit due to assault, motor vehicle crashes, or sports injuries

Answer: orbital floor

Flashcard 159: The semicircular canals of the inner ear are filled with _____-lymph

Answer: endo

Flashcard 160: Patients with basilar skull fracture may present with blood in the _____ cavity of the ear

Answer: tympanic