Nerve Root Supply of Muscles - Upper Body

Name the nerve roots which supply the following muscles of the upper extremity. Source: Gray's Anatomy for Students, 4th ed.

Answers must be entered in the following format: C#-C# or C#-T#

For muscles with a cranial nerve supply and anterior rami supply, name one to recieve a correct answer.

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Last updated: August 8, 2021

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Muscle	Nerve Roots
Deltoid	C5-C6
Pectoralis Major Clavicular Head	C5-C6
Pectoralis Major Sternal Head	C5-T1
Pectoralis Minor	C8-T1
Serratus Anterior	C5-C7
Trapezius (Cranial Nerve or Rami)	CNX11, C3-C4
Levator Scapula	C3-C5
Rhomboid Major	C4-C5
Rhomboid Minor	C4-C5
Latissimus Dorsi	C6-C8
Teres Major	C5-C7
Supraspinatus	C5-C6
Infraspinatus	C5-C6
Subscapularis	C5-C7
Teres Minor	C5-C6
Coracobrachialis	C5-C7
Biceps Brachii	C5-C6
Brachialis	C5-C7
Triceps Brachii	C6-C8
Anconeus	C6-C8
Pronator Teres	C6-C7
Flexor Carpi Radialis	C6-C7
Palmaris Longus	C7-C8
Flexor Carpi Ulnaris	C7-T1
Flexor Digitorum Superficialis	C8-T1
Flexor Digitorum Profundus (D2-3)	C8-T1

Muscle	Nerve Roots
Flexor Digitorum Profundus (D4-5)	C8-T1
Flexor Pollicis Longus	C7-C8
Pronator Quadratus	C7-C8
Brachioradialis	C5-C6
Extensor Carpi Radialis Longus	C6-C7
Extensor Carpi Radialis Brevis	C7-C8
Supinator	C6-C7
Extensor Digitorum	C7-C8
Extensor Digiti Minimi	C7-C8
Extensor Carpi Ulnaris	C7-C8
Extensor Pollicis Longus	C7-C8
Extensor Pollicis Brevis	C7-C8
Abductor Pollicis Longus	C7-C8
Extensor Indicis	C7-C8
Flexor Pollicis Brevis	C8-T1
Abductor Pollicis Brevis	C8-T1
Opponens Pollicis	C8-T1
Flexor Digiti Minimi Brevis	C8-T1
Abductor Digiti Minimi	C8-T1
Opponens Digiti Minimi	C8-T1
Adductor Pollicis	C8-T1
Lumbricals (1-2)	C8-T1
Lumbricals (3-4)	C8-T1
Palmar Interossei	C8-T1
Dorsal Interossei	C8-T1