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Muscle Attachment Sites in the Upper Limb

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Muscle Attachment Sites in the Upper Limb This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. Muscle Attachment Sites in the Upper Limb The Clavicle Pectoralis major Smooth superior surface of the shaft, under the platysma muscle Deltoid tubercle: Right clavicle attachment of the deltoid Deltoid Axillary nerve Acromial facet Trapezius Sternocleidomastoid and Trapezius innervated by the Spinal Accessory nerve Sternocleidomastoid Conoid tubercle, attachment of the conoid ligament which is the medial part of the Sternal facet coracoclavicular ligament Conoid ligament Costoclavicular ligament Acromial facet Impression for the Trapezoid line, attachment of the costoclavicular ligament Subclavian groove: Subclavius trapezoid ligament which binds the clavicle to site of attachment of the Innervated by Nerve to Subclavius which is the lateral part of the the first rib subclavius muscle coracoclavicular ligament Trapezoid ligament This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The Scapula Trapezius Right scapula: posterior Levator scapulae Supraspinatus Deltoid Deltoid and Teres Minor are innervated by the Axillary nerve Rhomboid minor Levator Scapulae, Rhomboid minor and Rhomboid Major are innervated by the Dorsal Scapular Nerve Supraspinatus and Infraspinatus innervated by the Suprascapular nerve Infraspinatus Long head of triceps Rhomboid major Teres Minor Teres Major Teres Major innervated by Lower Subscapular Nerve Latissimus dorsi Latissimus dorsi innervated by the Thoracodorsal nerve Right scapula: anterior Innervated by the medial pectoral nerve Deltoid Pectoralis minor Biceps brachii: short head Serratus anterior Serratus anterior is innervated by the Coracobrachialis and Biceps Brachii are innervated by the Long Thoracic nerve Musculocutaneous nerve Coracobrachialis Subscapularis Subscapularis innervated by the Upper and lower Subscapular nerves Long head of triceps Innervated by the Radial nerve This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The Humerus Right Humerus: anterior Right Humerus: posterior Subscapularis Teres minor Supraspinatus Infraspinatus (lesser tubercle) Axillary nerve (greater tubercle) Upper and lower Subscapular nerves (greater tuberosity Suprascapular nerve Suprascapular nerve Latissimus dorsi Thoracodorsal nerve The bicipital groove Covered by the transverse Triceps brachii: ligament Teres major Lateral head Lower Subscapular Nerve Pectoralis major Innervated by the Lateral and me dial pectoral nerves Deltoid Deltoid Axillary nerve Axillary nerve All heads of the triceps are Coracobrachialis innervated by the Radial nerve Musculocutaneous nerve Triceps brachii: Medial head Brachialis Musculocutaneous nerve Brachioradialis Radial nerve Anconeus Radial nerve Extensor carpi Pronator teres Flexor carpi ulnaris radialis longus Median nerve Ulnar nerve Supinator (Radial Nerve) Deep branch of radial nerve Common extensor origin: - Extensor carpi radialis brevis (deep branch of the radial nerve) Common flexor origin: - Extensor digitorum (posterior interosseous nerve) - Flexor carpi radialis (Median nerve) - Extensor digiti minimi(posterior interosseous nerve) - Palmaris longus (Median nerve) - Extensor carpi ulnaris (posterior interosseous nerve) - Humeroulnar head of the FLEXOR DIGITORUM SUPERFICIALIS - (Median nerve) - - This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The Radius and Ulna: Flexor compartment Brachialis Musculocutaneous nerve Biceps brachii Musculocutaneous nerve Supinator Flexor digitorum Deep branch of superficialis radial nerve; (Median nerve) actually a part of the extensor compartment Flexor digitorum Pronator teres: superficialis the ulnar head originates here (Median nerve) innervated by the Median nerve Flexor carpii ulnaris Pronator teres Ulnar head originates here (Median nerve) Innervated by the Ulnar nerve Flexor digitorum Flexor pollicis longus profundis Anterior interosseous nerve Radial half innervated by the Median nerve Ulnar Half innervated by the ulnar nerve Pronator quadratus Brachioradialis ORIGINATES at the ULNA Radial nerve INSERTS into the RADIUS This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The Radius and Ulna: dorsal surface Triceps brachii Radial nerve Anconeus Radial nerve Supinator Deep branch of Supinator radial nerve Deep branch of radial nerve Abductor pollicis longus (posterior interosseous nerve) Pronator teres (Median nerve) Extensor pollicis longus (posterior interosseous nerve) Posterior oblique line Extensor pollicis brevis (posterior interosseous nerve) Extensor indices (posterior interosseous nerve) This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The carpus and hand: palmar surface Flexor digitorum superficialis (Median nerve – index and middle finger) (Ulnar nerve – ring and pinky fingers) Inserts into the distal phalanges Adductor pollices (Median nerve) Flexor digitorum superficialis (Median nerve) Inserts into the middle phalanges Flexor pollicis longus (Anterior interosseous nerve) Flexor digiti minimi brevis (deep branch of ulnar nerve) Flexor pollicis longus (deep branch of ulnar nerve) Abductor digit minimi Flexor pollicis brevis (deep branch of ulnar nerve) (recurrent branch of Median nerve) Opponens digit minimi Abductor pollicis brevis (deep branch of ulnar nerve) (recurrent branch of Median nerve) Opponens pollicis (recurrent branch of Median nerve) Flexor carpii ulnaris Abductor pollicis longus Unique among anterior (recurrent branch of Median nerve) compartment muscles because it is WHOLELY innervated by the Ulnar nerve Abductor digit minimi Flexor Carpi radialis (deep branch of ulnar nerve) (Median nerve) Palmaris longus (Median nerve) Inserts into the flexor retinaculum Opponens pollicis brevis, abductor pollicis brevis and flexor pollicis brevis all originate from the flexor retinaculum This document was created by Alex Yartsev ([email protected]); if I have used your data or images and forgot to reference you, please email me. The carpus and hand: dorsal surface Extensor digitorum (posterior interosseous nerve) Extensor indices (posterior interosseous nerve) Extensor digit minimi (posterior interosseous nerve) Extensor carpi radialis longus (radial nerve) Extensor pollicis longus Extensor carpi radialis brevis (posterior interosseous nerve) Deep branch of radial nerve Dorsal interossei Deep branch of ulnar nerve Extensor pollicis brevis (posterior interosseous nerve) Extensor carpi ulnaris Deep branch of radial nerve Abductor pollicis longus (posterior interosseous nerve) .
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