The middle superior alveolar nerve or middle superior dental nerve is a
nerve
A nerve is an enclosed, cable-like bundle of nerve fibers (called axons). Nerves have historically been considered the basic units of the peripheral nervous system. A nerve provides a common pathway for the Electrochemistry, electrochemical nerv ...
that drops from the
infraorbital portion of the
maxillary nerve
In neuroanatomy, the maxillary nerve (V) is one of the three branches or divisions of the trigeminal nerve, the fifth (CN V) cranial nerve. It comprises the principal functions of Sense, sensation from the maxilla, nasal cavity, Sinus (anatomy ...
to supply the
sinus mucosa, the roots of the
maxillary premolar
The premolars, also called premolar teeth, or bicuspids, are transitional teeth located between the canine and molar teeth. In humans, there are two premolars per quadrant in the permanent set of teeth, making eight premolars total in the mout ...
s, and the
mesiobuccal root of the first maxillary molar.
It is not always present; in 72% of cases it is non existent with the
anterior superior alveolar nerve innervating the premolars and the
posterior superior alveolar nerve innervating the molars, including the mesiobuccal root of the first molar.
See also
*
Alveolar nerve (
Dental nerve)
:*
Superior alveolar nerve (
Superior dental nerve)
::*
Anterior superior alveolar nerve (
Anterior superior dental nerve)
::*
Posterior superior alveolar nerve (
Posterior superior dental nerve)
:*
Inferior alveolar nerve
The inferior alveolar nerve (IAN) (also the inferior dental nerve) is a sensory branch of the mandibular nerve (CN V3) (which is itself the third branch of the trigeminal nerve (CN V)). The nerve provides sensory innervation to the lower/mandibu ...
(
Inferior dental nerve)
External links
*
Maxillary nerve
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