Alveolar nerve
Alveolar nerve
The Alveolar nerve is a branch of the trigeminal nerve, which is the fifth cranial nerve. It is divided into two parts: the Inferior alveolar nerve and the Superior alveolar nerve. These nerves are responsible for transmitting sensation from the teeth and gums.
Etymology[edit | edit source]
The term "alveolar" is derived from the Latin word "alveolus" meaning "small cavity". This refers to the small cavities or sockets in the jawbone where the roots of the teeth are embedded.
Inferior alveolar nerve[edit | edit source]
The Inferior alveolar nerve is a branch of the mandibular nerve, which is the third division of the trigeminal nerve. It provides sensory innervation to the lower teeth, while its motor fibers, known as the mylohyoid nerve, supply the mylohyoid muscle and the anterior belly of the digastric muscle.
Superior alveolar nerve[edit | edit source]
The Superior alveolar nerve is divided into the anterior, middle, and posterior superior alveolar nerves. These nerves are branches of the maxillary nerve, the second division of the trigeminal nerve. They provide sensory innervation to the upper teeth and the maxillary sinus.
Clinical significance[edit | edit source]
Damage to the alveolar nerves can result in paresthesia, which is an abnormal sensation in the mouth. This can occur due to various reasons such as trauma, infection, or as a complication of dental procedures. Treatment usually involves managing the underlying cause.
Related terms[edit | edit source]
- Trigeminal nerve
- Inferior alveolar nerve
- Superior alveolar nerve
- Mandibular nerve
- Maxillary nerve
- Mylohyoid nerve
- Paresthesia
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Contributors: Prab R. Tumpati, MD