UE Muscle Innervations Flashcards
What innervates the Trapezius muscle?
Spinal part of the accessory nerve (cranial nerve XII)
What innervates the Latissimus Dorsi muscle?
Thoracodorsal
What innervates the Levator Scapulae muscle?
Dorsal scapular nerve
What innervates the Rhomboid Major and Minor muscles?
Dorsal scapular nerve
What innervates the Serratus Posterior Superior muscle?
Intercostal nerves 2-5
What innervates the Serratus Posterior Inferior muscle?
Intercostal nerves 9-12
What innervates the Splenius Capitus muscle?
Dorsal rami of the cervical nerve
What innervates the Erector Spinae (Iliocostalis, Longissimus, Spinalis) muscles?
Dorsal rami of the cervical, thoracic, and lumbar spinal nerves
What innervates the Deltoid muscle?
Axillary nerve
What innervates the Supraspinatus muscle?
Suprascapular nerve
What innervates the Teres Minor muscle?
Axillary nerve (has a pseudoganglion)
What innervates the Teres Major muscle?
Lower subscapular nerve
What innervates the Subscapularis muscle?
Upper and lower subscapular nerves
What innervates the Triceps (long head, lateral head, medial head) muscle?
Radial Nerve
What innervates the Anconeus muscle?
Radial Nerve
What innervates the Brachioradialis muscle?
Radial nerve (above the elbow)
What innervates the Extensor Carpi Radialis Longus muscle?
Radial nerve (above the elbow)
What innervates the Extensor Carpi Radialis Brevis muscle?
Deep branch of the radial nerve, posterior interosseous nerve (before piercing the supinator)
What innervates the Extensor Digitorum muscle?
Deep branch of the radial nerve
What innervates the Extensor Digiti Minimi muscle?
Deep branch of the radial nerve
What innervates the Extensor Carpi Ulnaris muscle?
Deep branch of the radial nerve
What innervates the Supinator muscle?
Deep branch of the radial nerve
What innervates the Semi Spinalis muscle?
Dorsal rami of the spinal nerves
What innervates the Abductor Pollicis Longus muscle?
Deep branch of the radial nerve
What innervates the Extensor Pollicis Brevis muscle?
Deep branch of the radial nerve
What innervates the Extensor Pollicis Longus muscle?
Deep branch of the radial nerve
What innervates the Extensor Indicis muscle?
Deep branch of the radial nerve
What innervates the Pectoralis Major muscle?
Medial and Lateral pectoral nerve
What innervates the Pectoralis Minor muscle?
Medial pectoral nerve
What innervates the Serratus Anterior muscle?
Long Thoracic Nerve (nerve of bell)
What innervates the Biceps Brachii muscle?
Musculocutaneous nerve
What innervates the Coracobrachialis muscle?
Musculocutaneous nerve
What innervates the Brachialis muscle?
Major part by the musculocutaneous nerve and a small lateral part by the radial nerve
What innervates the Pronator Teres muscle?
Median nerve
What innervates the Flexor Carpi Radialis muscle?
Median Nerve
What innervates the Palmaris Longus muscle?
Median Nerve
What innervates the Flexor Carpi Ulnaris muscle?
Ulnar nerve
What innervates the Flexor Digitorum Superficialis muscles?
Median Nerve
What innervates the Flexor Pollicis Longus muscle?
Median nerve (anterior interosseous branch)
What innervates the Flexor Digitorum Profundus muscle?
Medial part of the ulnar nerve and lateral part by the median nerve (anterior interosseous branch)
What innervates the Pronator Quadratus muscle?
Median Nerve (anterior interosseous branch)
What innervates the Flexor Pollicis Brevis muscle?
Median Nerve
What innervates the Abductor Pollicis Brevis muscle?
Median Nerve
What innervates the Opponens Pollicis muscle?
Median nerve
What innervates the Flexor Digiti Minimi muscle?
Ulnar nerve
What innervates the Abductor Digiti Minimi muscle?
Ulnar nerve
What innervates the Opponens Digiti Minimi muscle?
Ulnar nerve
What innervates the Palmaris Brevis muscle?
Ulnar nerve
What innervates the Adductor Pollicis muscle?
Ulnar nerve and Median Nerve
What innervates Lumbricals 1 and 2 (index and long finger) muscles?
Median Nerve
What innervates Lumbricals 3 and 4 (ring and pinky) muscles?
ulnar nerve
What innervates the Palmar and Dorsal Interossei muscles?
Ulnar nerve
What Innervates the Infraspinatus muscle?
Suprascapular Nerve