Anatomy study note · Head and neck

Maxillary nerve

The second division of the trigeminal nerve (V2), purely sensory, supplying the middle of the face, the upper teeth, maxillary sinus, nose and palate.

Key points

• V2: sensory; foramen rotundum → pterygopalatine fossa.
• Infraorbital nerve: cheek, side of the nose, upper teeth.
• Pterygopalatine ganglion: lacrimal and nasal gland secretion.
• Whole upper lip skin: maxillary nerve.
• Motor nuclei: basal lamina. Sensory nuclei: alar lamina.
• Nerve: epineurium → perineurium (blood–nerve barrier) → endoneurium.
• Cut nerve: Wallerian degeneration; regrows 0.5–3 mm/day.

The full note in the atlas also covers

Course · Branches · Histology · Development

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Written from

• Snell’s Clinical Anatomy by Regions, 10th ed., ch. 12, PDF pp. 1610–1611, 1667–1669
• Inderbir Singh’s Human Embryology, ch. 17, PDF pp. 312, 318; ch. 11, PDF pp. 149–150
• BRS Cell Biology & Histology, 7th ed., ch. 9, PDF pp. 163–166, 166, 171–172

More from the head and neck

• Medial pterygoid
• Medial rectus
• Medulla oblongata
• Midbrain
• Middle cerebral artery
• Muscles of facial expression
• Musculus uvulae
• Mylohyoid
• Nasal bone
• Occipital bone
• Occipital lobe
• Occipitofrontalis

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