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Branches of Brachial Plexus
LECOM Yr 1
53
Anatomy
Graduate
08/13/2011

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Cards

Term
origin of dorsal scapular branch
Definition
C5 root
Term
spinal segment involved in dorsal scapular branch
Definition
C5
Term
muscles innervated by dorsal scapular branch
Definition
rhomboid major, rhomboid minor, levator scapulae
Term
origin of long thoracic branch
Definition
C5 to C7 roots
Term
spinal segments involved in long thoracic nerve
Definition
C5 to C7
Term
muscle innervated by long thoracic nerve
Definition
serratus anterior
Term
origin of suprascapular branch
Definition
superior trunk
Term
spinal segments involved in suprascapular branch
Definition
C5,C6
Term
muscles innervated by suprascapular branch
Definition
supraspinatus, infraspinatus
Term
origin of the nerve to subclavius
Definition
superior trunk
Term
spinal segments involved with the nerve to subclavius
Definition
C5,C6
Term
muscle innervated by the nerve to subclavius
Definition
subclavius
Term
origin of the lateral pectoral branch
Definition
lateral cord
Term
spinal segments involved with the lateral pectoral branch
Definition
C5-C7
Term
muscle innervated by the lateral pectoral branch
Definition
pectoralis major
Term
origin of the musculocutaneous branch
Definition
lateral cord
Term
spinal segments involved in musculocutaneous branch
Definition
C5-C7
Term
muscles innervated by the musculocutaneous branch
Definition
all muscles in the anterior compartment of the arm
Term
sensory innervation of the musculocutaneous branch
Definition
skin on the lateral side of the forearm
Term
origin of the medial pectoral branch
Definition
medial cord
Term
spinal segments involved with the medial pectoral branch
Definition
C8, T1
Term
muscles innervated by the medial pectoral branch
Definition
pectoralis major, pectoralis minor
Term
origin of medial cutaneous nerve of arm branch
Definition
medial cord
Term
spinal segments involved with the medial cutaneous nerve of arm
Definition
C8, T1
Term
sensory innervation of medial cutaneous nerve of arm
Definition
skin on the medial side of distal 1/3 of arm
Term
origin of medial cutaneous nerve of forearm
Definition
medial cord
Term
spinal segments involved with medial cutaneous nerve of forearm
Definition
C8, T1
Term
sensory innervation of medial cutaneous nerve of forearm
Definition
skin on the medial side of the forearm
Term
origin of the median nerve branch
Definition
medial and lateral cords
Term
spinal segments involved with the median nerve
Definition
(C5), C6-T1
Term
muscles innervated by the median nerve
Definition
all muscles in the anterior compartment of the forearm (except the flexor carpi ulnaris and medial half of flexor digitorum profundus), three thenar muscles of the thumb and two lateral lumbrical muscles
Term
sensory innervation if the median nerve
Definition
skin over the palmar surface of the lateral three and one half digits and over the lateral side of the palm and middle of the wrist
Term
origin of the ulnar nerve branch
Definition
medial cord
Term
spinal segments involved with the ulnar nerve branch
Definition
(C7), C8, T1
Term
muscle innervation of ulnar nerve branch
Definition
all intrinsic muscle of the hand (except 3 thenar muscles and 2 lateral lumbricals), also flexor carpi ulnaris and the medial half of flexor digitorum profundus in the forearm
Term
sensory innervation of the ulnar nerve
Definition
skin over the palmar surface of the medial one and one half digits and associated palm and wrist, and skin over the dorsal surface of the medial one and one half digits
Term
origin of superior subscapular branch
Definition
posterior cord
Term
spinal segments involved with the superior subscapular
Definition
C5,C6
Term
muscle innervation of the superior subscapular branch
Definition
subscapularis
Term
origin of the thoracodorsal branch
Definition
posterior cord
Term
spinal segments involved with the thoracodorsal branch
Definition
C6-C8
Term
muscle innervated by the thoracodorsal branch
Definition
latissimus dorsi
Term
origin of the inferior subscapular branch
Definition
posterior cord
Term
spinal segments involved with the inferior subscapular branch
Definition
C5,C6
Term
muscles innervated by the inferior subscapular branch
Definition
subscapularis, teres major
Term
origin of the axillary nerve
Definition
posterior cord
Term
spinal segments involved with the axillary nerve
Definition
C5,C6
Term
muscles innervated by the axillary nerve
Definition
deltoid, teres minor
Term
sensory innervation of the axillary nerve
Definition
skin over upper lateral part of the arm
Term
origin of radial nerve
Definition
posterior cord
Term
spinal segments involved with the radial nerve
Definition
C5-T1
Term
muscles innervated by the radial nerve
Definition
all muscles in the posterior compartments of the arm and forearm
Term
sensory innervation of the radial nerve
Definition
skin on the posterior aspects of the arm and forearm, the lower lateral surface of the arm and the dorsal lateral surface of the hand
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