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Pain referral
Trigger points
Cranial nerve
Spinal nerve
Historical
SPINAL NERVE SEGMENT
PLEXUS
INNERVATION OF MUSCLE & VISCERIA DERMATOME PATTERN
T1
BRACHIAL
Intercostals of Respective Level;
Levatores Costarum; Serratus Posterior & Superior; Semispinalis Thoracis;
Pectoralis Major & Minor; Transversus Thoracis; Sometimes Pronator Teres;
Flexor Digitorum Superficalis & Profundus; Interossei, Lumbricales; Flexor
Pollicis Longus & Brevis; Opponens Pollicis; Abductor Pollicis Brevis;
Thyroid; Heart Posteriorly from
about the level of T1 the pattern traverses inferiorly across the spine of
the scapula around and under the axilla anteriorly to the sternum at
approximately the level of the 2nd and 3rd rib; Additionally it traverses
from the sternum at the level of the 2nd or 3rd rib laterally to the
anterior aspect of the shoulder and down the anterior medial aspect of the
arm, forearm and terminates at the base of the thenar eminence.
T2
BRACHIAL
Transversus Thoracis; Intercostals of
Respective Level; Levatores Costarum; Serratus Posterior Superior;
Semispinalis Thoracis; Intrinsic Back Muscles; Heart, Heart Valves; Coronary
Arteries Posteriorly it
traverses from T2 inferiorly beneath the inferior angle of the scapula at
which time it ascends superiorly to the axilla and anteriorly above the
nipple line to the sternum.
T3
NONE
Transversus Thoracis; Intercostals of
Respective Level; Levatores Costarum; Serratus Posterior Superior;
Semispinalis Thoracis; Intrinsic Back Muscles; Heart; Chest; Pleura;
Bronchial Tubes; Lungs Traverses from
approximately the level of T3 inferiorly and lateral to the inferior angle
of the scapula at which time it traverses superiorly and laterally around
the thorax and terminates at the sternum just superior to the nipple line.
T4
NONE
Transversus Thoracis; Intercostals of
Respective Level; Levatores Costarum; Semispinalis Thoracis; Intrinsic Back
Muscles; Gall Bladder; Common Bile Duct; Traverses from the
level of T4 well beneath the scapula at approximately the level of the 7th
rib; anteriorly it sweeps superiorly under the axilla and across the nipple
line.
T5
NONE
Transversus Thoracis; Intercostals of
Respective Level; Levatores Costarum; Semispinalis Thoracis; Stomach; Liver;
Solar Plexus; T5 traverses in a
pattern slightly inferior to that referenced at T4 with its anterior
translation across the inferior aspect of the breast and mastic cleft and
terminating at the sternum.
T6
NONE
Transversus Thoracis: Intercostals of
Respective Level: Levatores Costarum; Semispinalis Thoracis; Stomach;
Pancreas T6 traverses from the
6th segment posteriorly along the course of the 6th or 7th rib anteriorly
and terminates at the xiphoid process.
T7
NONE
Intercostals of Respective Levels;
Levatores Costarum; Intrinsic Back Muscles; Transverse Abdominis; Rectus
Abdominis; Pancreas; Spleen; Duodenum
The dermatome pain referral for the T7 spinal nerve
traverses from the 7th segment, anteriorly along
the 7th & 8th rib and terminates slightly inferior of the xiphoid process.
T8
NONE
Intercostals of Respective Levels;
Levatores Costarum; Intrinsic Back Muscles; External Obliques; Internal
Obliques; Transverse Abdominis; Rectus Abdominis; Spleen Traverses posteriorly
from T8 to anteriorly at the mid epigastrium.
T9
NONE
Intercostals of Respective Levels;
Levatores Costarum; Intrinsic Back Muscles; External Obliques; Internal
Obliques; Transverse Abdominis; Rectus Abdominis; Adrenal Glands Traverses posteriorly
from T9 to anteriorly slightly above the umbilicus.
T10
NONE
Intercostals of Respective Levels:
Levatores Costarum; Serratus Posterior Inferior; Intrinsic Back Muscles;
External Obliques; Internal Obliques; Transverse Abdominis; Rectus Abdominis;
Kidneys; Adrenal Glands Traverses posteriorly
from T10 to anteriorly through the umbilicus.
T11
NONE
Intercostals of Respective Levels;
Levatores Costarum; Serratus Posterior Inferior; Intrinsic Back Muscles;
External Obliques; Internal Obliques; Transverse Abdominis; Rectus Abdominis;
Kidneys; Ureters Traverses posteriorly
from T11 to anteriorly slightly beneath the umbilicus.
T12
LUMBAR
Intercostals of Respective Levels;
Levatores Costarum; Serratus Posterior Inferior; Intrinsic Back Muscles;
External Obliques; Internal Obliques; Transverse Abdominis; Rectus Abdominis;
Pyramidalis; Small Intestine; Kidneys Traverses posteriorly
from T12 to anteriorly slightly above the pubis. © Copyright
Spinal nerve supply of the thoracic region