Brachial Plexus Flashcards
Dorsal Scapular Origin & Segmentation
Posterior aspect of anterior ramus of C5 w/ contribution from C4
-So… (C5,C4)
Dorsal Scapular Innervation-2
- Rhomboids
- Levator Scapulae
Long Thoracic Origin & Segmentation
Posterior aspect of anterior rami of C5, C6, C7
Long Thoracic Innervation
Serratus Anterior
Suprascapular Origin & Segmentation
Superior Trunk
C4, C5, C6
Suprascapular Innervation-3
- Supraspinatous
- Infraspinatous
- Gelenohumeral Joint
Subclavian Nerve Origin & Segmentation
Superior Trunk
C4, C5, C6
Subclavian Nerve Innervation-2
- Subclavius
- Sternoclavicular Joint
Lateral Pectoral Origin & Segmentation
Side branch of lateral cord
C5, C6, C7
Lateral Pectoral Innervation
Pectoralis Major
Musculocutaneous Origin & Segmentation
Terminal branch of lateral cord
C5, C6, C7
Musculocutaneous Innervation
- Muscles of anterior compartment of arm
- Skin of lateral aspect of forearm
Median Origin & Segmentation
Lateral root-terminal branch of lateral cord
-C6, C7
Medial root-terminal branch of medial cord
-C8, T1
Median Innervation-2
- Muscles of anterior forearm
- Intrinsic muscles of hand
Medial Pectoral Origin & Segmentation
Side branches of medial cord
C8, T1