The inferior alveolar nerve provides sensory innervation to the teeth. This nerve is responsible for transmitting sensations like pain, temperature, and touch from the teeth to the brain.
The Inferior Alveolar Nerve and its Role
The inferior alveolar nerve is a branch of the mandibular nerve, which itself is a branch of the trigeminal nerve (CN V). It plays a crucial role in providing sensory innervation to the lower teeth (mandibular teeth).
What the Inferior Alveolar Nerve Innervates:
- Teeth: Provides sensation to all the mandibular teeth (incisors, canines, premolars, and molars).
- Gingivae: Innervates the gingiva (gums) on the buccal (cheek) side of the mandibular teeth.
- Lower Lip and Chin: After exiting the mental foramen as the mental nerve, it innervates the skin of the lower lip and chin.
- Cheek: Contributes to the sensory innervation of the cheek.
Overview Table
| Nerve | Area of Innervation |
|---|---|
| Inferior Alveolar Nerve | Mandibular teeth, gingivae, lower lip, chin, cheek |
