Innervation Flashcards
Brachialis
Musculocutaneous C5-C6, (C7)
Biceps brachii
Musculocutaneous C5-C6
Brachioradialis
Radial C5-C6, (C7)
Pronator teres
Median C6-C7
Flexor carpi ulnaris
Ulnar C7-C8
Triceps
Radial C6-C8
Anconeus
Radial C7-C8, (TI)
Supinator
Posterior interosseous (radial) C5-C6
Pronator quadratus
Anterior interosseous (median) C8, TI
Flexor carpi radialis
Median C6-C7
Extensor carpi radialis longus
Radial C6-C7
Extensor carpi radialis brevis
Posterior interosseous (radial) C7-C8
Extensor carpi ulnaris
Posterior interosseous (radial) C7-C8
Deltoid (anterior fibers)
Axillary (circumflex) C5-C6 (posterior cord)
Pectoralis major (clavicular fibers)
Lateral pectoral C5-C6 (lateral cord)
Coracobrachialis
Musculocutaneous C5-C7 (lateral cord)
Biceps
Musculocutaneous C5-C7 (lateral cord)
Deltoid (posterior fibers)
Axillary (circumflex) C5-C6 (posterior cord)
Teres major
Subscapular C5-C6 (posterior cord)
Teres minor
Axillary (circumflex) C5-C6 (posterior cord)
Latissimus dorsi
Thoracodorsal C6-C8 (posterior cord)
Pectoralis major
(sternocostal fibers)
Lateral pectoral C5-C6 (lateral cord)
Medial pectoral C8, Tl (medial cord)
Triceps (long head)
Radial C5-C8, T1 (posterior cord)
Infraspinatus
Suprascapular CS-C6 (brachial plexus trunk)
Supraspinatus
Suprascapular CS-C6 (brachial plexus trunk)
Subscapularis
Subscapular CS-C6 (posterior cord)
Rhomboid major
Dorsal scapular (C4), C5
Rhomboid minor
Dorsal scapular (C4), C5
Levator scapulae
C3-C4 nerve roots C3-C4
Dorsal scapular
Pectoralis minor
Medial pectoral C8, Tl (medial cord)
Trapezius (upper and lower fibers)
Accessory Cranial nerve XI
C3-C4 nerve roots (C3-C4)
Serratus anterior
Long thoracic C5-C6, (C7)
Lateral (external) pterygoid)(ipsilateral muscle)
Mandibular (CN V)
Mylohyoid
Inferior alveolar (CN V)
Geniohyoid
Hypoglossal (Cl XII)
Digastric
Inferior alveolar (CN V) Facial (CN VII)
Masseter
Mandibular (CN V)
Temporalis
Mandibular (CN V)
Medial (internal) pterygoid (contralateral muscle)
Mandibular (CN V)
Stylohyoid
Facial (CN VII)
Rectus capitis anterior
CI-C2
Rectus capitis lateralis
CI-C2
Longus capitis
CI-C3
Hyoid muscles
Inferior alveolar nerve
Facial nerve
Hypoglossal nerve
Ansa cervicalis
Obliquus capitis superior
CI
Sternocleidomastoid
Accessory C2
Splenius capitis
C4-C6
Semispinalis capitis
CI-C8
Longissimus capitis
C6-C8
Spinalis capitis
C6-C8
Rectus capitis posterior minor
CI
Rectus capitis posterior major
CI
Obliquus capitis inferior
CI
Semispinalis capitis
CI-C8