Flashcards: Neural Pathways and Cranial Nerve Functions — 22 cartões

Fossa pterigopalatina — communication?

Connects nasal cavity, orbit, infratemporal region.

Nervul facial — segment timpanic?

Located near the middle ear cavity.

Canalul facial — pathway?

Runs through the facial canal from the internal acoustic meatus to stylomastoid foramen.

Ramuri intrapietroase — nerves?

Nervul timpanic, chorda tympani, stapedius nerve.

Ramuri extrapietroase — territories?

Innervate head muscles, glands, and sensory areas via cervical and thoracic branches.

Nervul glosofaringian — origin?

Emerges from the medulla, exits jugular foramen.

Nervul vag — origin?

From medulla, exits jugular foramen, gives cervical, thoracic, abdominal branches.

Ramuri cervicale vag — function?

Innervate muscles and viscera of the neck.

Nervul nazociliar — role?

Provides sensation to the nasal cavity and skin of the nose.

V1 — terminal branches?

Lacrimal, frontal, nazociliar nerves.

V2 — pathway?

Enters foramen rotundum, then via fissure and infraorbital nerve to face.

V2 — main branches?

Zygomatic, infraorbital, superior alveolar nerves.

Nervul mandibular — branches?

Auriculotemporal, lingual, inferior alveolar nerves.

Nervul auriculotemporal — course?

Encircles middle meningeal artery, supplies ear and temple.

Nervul lingual — innervation?

General sensation to anterior 2/3 of tongue.

Nervul maxilar V2 — function?

Sensory to midface, maxillary teeth, palate.

Nervul trigeminal V — divisions?

V1 (ophthalmic), V2 (maxillary), V3 (mandibular).

Nervul vag — recurrent laryngeal?

Loops around aortic arch (left) or subclavian artery (right), ascends to larynx.

Vagus — parasympathetic targets?

Heart, lungs, digestive tract, and abdominal organs.

Nervul glosofaringian — sensory territory?

Posterior tongue, pharynx, middle ear, carotid sinus.

Nervul vag — terminal branches?

Anterior and posterior vagal trunks, innervate thoracic and abdominal organs.

Nervul trigeminal — V1 vs V2?

V1: sensation from forehead, eye; V2: sensation from midface, maxilla.