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|Nerve: Thoracic nerves|
|Cutaneous distribution of thoracic nerves.|
|Gray's||subject #209 923|
- Main article: Spinal nerves
The thoracic nerves are the spinal nerves emerging from the thoracic vertebrae.
- The intercostal nerves come from thoracic nerves T1-T11, and run between the ribs ("costae"). At T2 and T3, it further branches into the intercostobrachial nerve.
- The subcostal nerve comes from nerve T12, and runs below the twelfth rib.
The medial branches (ramus medialis; internal branch) of the posterior divisions of the upper six thoracic nerves run between the Semispinalis dorsi and Multifidus, which they supply; they then pierce the Rhomboidei and Trapezius, and reach the skin by the sides of the spinous processes.
The medial branches of the lower six are distributed chiefly to the Multifidus and Longissimus dorsi, occasionally they give off filaments to the skin near the middle line.
- Dictionary at eMedicine thoracic+nerves
- Memorial University of Newfoundland - Anatomy at MUN thorax/thornerv
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
Nerves: spinal nerves
anterior (Coccygeal plexus) - posterior (Posterior branch of coccygeal nerve)
|Major nerves (also see Peripheral nervous system)|
Cranial nerves: I olfactory | II optic | III oculomotor | IV trochlear | V trigeminal | V1 ophthalmic (lacrimal, frontal, supratrochlear, supraorbital, nasociliary, ciliary ganglion) | V2 maxillary (sphenopalatine ganglion) | V3 mandibular (buccal - auriculotemporal - lingual - inferior alveolar - otic ganglion) | VI abducens | VII facial (chorda tympani, nervus intermedius) | VIII vestibulocochlear (cochlear, vestibular) | IX glossopharyngeal | X vagus (recurrent laryngeal, Alderman's nerve) | XI accessory | XII hypoglossal
C5-C8, T1 - Brachial plexus: supraclavicular branches (dorsal scapular, suprascapular, long thoracic) | lateral cord (musculocutaneous, lateral antibrachial cutaneous, lateral head of median nerve) | medial cord (ulnar, medial head of median nerve, medial antibrachial cutaneous, medial brachial cutaneous) | posterior cord (axillary, radial)
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