brachial plexus

4
BRACHIAL PLEXUS A network of nerves that conducts signals from the spinal cord, which is housed in the spinal canal of the vertebral column (or spine), to the shoulder, arm and hand. C5, C6, C7, C8, T1 Position Roots: Posterior to the scalenus muscle Trunk: Posterior triangle of the neck Divisions: Behind clavicle Reach To Drink Cold Beer Root Trunks Divisions Cords Branches Triangle of the neck Apex: Union of the sternocleidomastoid and the trapezius muscles at the superior nuchal line of the occipital bone Anterior: Posterior border of the sternocleidomastoideus Posterior: Anterior border of the trapezius Base: Middle one third of the clavicle

Upload: awatif-afzal

Post on 01-Feb-2016

13 views

Category:

Documents


0 download

DESCRIPTION

brachial plexus notes

TRANSCRIPT

Page 1: Brachial Plexus

BRACHIAL PLEXUSA network of nerves that conducts signals from the spinal cord, which is housed in the spinal canal of the vertebral column (or spine), to the shoulder, arm and hand.

C5, C6, C7, C8, T1

Position

Roots: Posterior to the scalenus muscleTrunk: Posterior triangle of the neckDivisions: Behind clavicle

Reach To Drink Cold BeerRoot Trunks Divisions Cords Branches

Triangle of the neck

Apex: Union of the sternocleidomastoid and

the trapezius muscles at the superior nuchal line of the occipital

bone

Anterior: Posterior border of the sternocleidomastoideus

Posterior: Anterior border of the trapezius

Base: Middle one third of the clavicle

Page 2: Brachial Plexus

Brachial Plexus: Terminal Branches in Arm and Forearm

Carpal Tunnel Syndrome

Cause:Tendonitis (inflammation) of flexor retinaculum from overuseMedian nerve entrapment

Findings:-Numbness-Tingling or sensory loss-Atrophy of Thenar Eminence

Associated factors:MEDIAN TRAPMyexedemaEdemaDiabetesIdiopathicAcromegalyNeoplasmTraumaRheumatoid arthritisAmyloidosisPregnancy

Lesion of Brachial Plexus

From roots:

5 6 7, Wing to HeavenLong thoracic nerve=winging scapula

From roots/trunks:

Erb Duchenne Palsy

Page 3: Brachial Plexus

Upper trunk lesion C5-C6Cause:

Trauma Traumatic birth

Findings: Limb hanging by side Medially rotated Pronated forearm

Klumpke’s Palsy

Lower trunk lesion C8-T1Cause:

Pancoast tumour Traumatic birth (hand pulled, affect T1)

Findings:RUM (Radial, Ulnar, Median nerves)

Loss of all lumbricals (all fingers are clawed) Forearm flexors and extensors lost