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29 Cards in this Set
- Front
- Back
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Brachial plexus originates from
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ventral primary rami of C5-T1
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Address for brachial plexus
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53635
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Pneumonic for brachial plexus
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randy travis drinks cold beer
(roots, trunks, divisions, cords, branches |
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upper trunk formed by union of...
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C5, C6
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middle trunk formed by..
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continuation of C7
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lower trunk formed by...
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union of C8, T1
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describe divisions...
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each trunk divides into a posterior and anterior division.
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Cords are named according to...
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their position relative to the axillary a.
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Lateral cord is formed by...
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anterior divisions of upper and middle trunks (567)
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medial cord is formed by...
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continuaton of anterior division of lower trunk (81)
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posterior cord is formed by
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posterior division of upper, middle, and lower trunks (56781)
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Branches of lateral cord....
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lateral pectoral 567, musculocutaneous (terminal)567, lateral root of median nerve
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branches of medial cord...
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medial pectoral 81, medial brachial cutaneous 81, medial antebrachial cutaneous 81, medial root of median nerve, ulnar nerve 81
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branches of posterior cord...
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thoracodorsal 678, upper subscapular 56, lower subscapular 56, axillary 56, radial 56781
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Erb's palsy can be caused by..
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excessive separation of shoulder and neck (athletic, motorcycle accident, infant during delivery), damage to C5 C6
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Describe muscle damage from Erb's Palsy
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paralyzed- deltoid, supraspinatus, infraspinatus, teres minor and subscapularis mm.
weakened- flexors of elbow |
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Another name for Erb's Palsy
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Erb-Duchenne paralysis
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Describe presentation of Erb's Palsy
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adduction and medial rotation of arm, extension of the elbow, flexion of hand, loss of sensation in C5C6 dermatomes supplied by dorsal and ventral primary rami of C5C6
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Loss of sensation will occur where in Erb's Palsy pt.
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skin of back and lateral surface of upper extremity
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damage to lower part of plexus...
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Klumpke's-Dejerne paralysis
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Klumpke's can be caused by...
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upper extremity is pulled upward suddenly.
ex. shoulder pulled during birth, catching yourself on a tree limb |
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Klumpke's affects skin and muscles innervated by...
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ulnar n.
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Klumpke's would effect muscles controlling what movements?
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flexion of wrist, along with other intrinsic muscles of hand
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Klumpke's would cause a decreased sensation in what regions?
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medial side of arm, forearm, and hand
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Can Klumpke's cause impairment on growth?
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Yes, if occurs at birth, damaged extremity will not grow to size of undamaged extremity.
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Extensions of lower cervical transverse processes cause..
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cervical rib syndrom, or thoracic outlet syndrome
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cervical rib syndrome causes...
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chronic injury to brachial plexus in lower part of neck, often involves injury to subclavian a.
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symptoms of cervical rib syndrome...
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pain in fingers, hand, and forearm, arm, and shoulder, paresthesia perceived in dermatomes C8-T1
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injury from cervical rib syndrome occurs...
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where nerve bundle crosses the 1st rib
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