Organization of the Upper Limb Robert S. Staron, Ph.D. Summer Anatomy Immersion
Grant’s Atlas of Anatomy 8th ed Gray’s Anatomy 37th ed Grant’s Atlas of Anatomy 8th ed
Grant’s Atlas of Anatomy 8th ed Grant’s Atlas 8th ed Grant’s Atlas of Anatomy 8th ed
Antr division: flexor comp. Postr division: ext comp. Netter’s Atlas of Human Embryology 2002
Muscle Compartments of the Upper Limb Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.)
Origin of Limb Muscles Dorsal muscle mass forms extensors and supinators in upper limb, extensors and abductors in lower limb. Ventral muscle mass forms flexors and pronators in upper limb and flexors and adductors in lower limb. Morphogenesis guided by CT, not myoblasts Split into individual muscles, cell death involved Carlson l999 Human Embryology Larsen 1993
Hollinshead’s Textbook of Anatomy 5th ed
Grant’s Dissector 13th ed
21. Rohen/Yokochi Color Atlas of Anatomy 2nd ed
Brachial Plexus Netter’s Atlas 2nd ed
hand – forearm – arm – shoulder distal proximal Grant’s Atlas of Anatomy 8th ed
Extrinsic shoulder mm. Intrinsic shoulder mm. trapezius m. latissimus dorsi m. levator scapulae m. rhomboideus major m. rhomboideus minor m. serratus anterior m. infraspinatus m. supraspinatus m. subscapularis m. teres minor m. teres major m. deltoid m. Anterior thorax mm. 1) pectoralis major and minor mm. 2) subclavius m.
trapezius m. (spinal accessory n. - CN XI + C3 & C4) Extrinsic shoulder mm. trapezius m. (spinal accessory n. - CN XI + C3 & C4) latissimus dorsi m. (thoracodorsal n. - C6, C7, C8) levator scapulae m. (C3 & C4 + dorsal scapular n. - C5) rhomboideus major m. (dorsal scapular n. - C5) rhomboideus minor m. (dorsal scapular n. - C5) serratus anterior m. (long thoracic n. - C5, C6, C7) Anterior thorax mm. 1) pectoralis major ( C5-T1) & minor (C6-C8) mm. med/lat pect nn. 2) subclavius m. (n. to subclavius m. - C5, C6)
Grant’s Atlas of Anatomy 8th ed Grant’s Atlas 8th ed Grant’s Atlas of Anatomy 8th ed
Netter’s Atlas of Human Anatomy 2nd ed
Netter’s Atlas 2nd ed
Intrinsic shoulder mm. infraspinatus m. (suprascapular n. - C5, C6) supraspinatus m. (suprascapular n. - C5, C6) subscapularis m. (upper + lower subscapular nn. - C5, C6) teres minor m. (axillary n. - C5, C6) teres major m. (lower subscapular n. - C5, C6) deltoid m. (axillary n. - C5, C6)
Grant’s Atlas of Anatomy 8th ed Grant’s Atlas 8th ed Grant’s Atlas of Anatomy 8th ed
Netter’s Atlas of Human Anatomy 2nd ed
rotator cuff musculature Netter’s Atlas 2nd ed
Muscle Compartments of the Upper Limb - arm Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.)
Grant’s Dissector 13th ed
brachium antr compartment postr compartment biceps brachii m. long head short head brachialis m. coracobrachialis m. triceps brachii m. lateral head medial head long head anconeus m.
coracobrachialis m. (C5-C7) musculocutaneous n. (C5-C7) biceps brachii m. (C5, C6) brachialis m. (C5, C6) coracobrachialis m. (C5-C7) Netter’s Atlas of Human Anatomy 2nd ed
axillary n. (C5-C6) radial n. (C5-T1) deltoid m. (C5, C6) teres minor m. (C5, C6) radial n. (C5-T1) triceps brachii m. (C6-C8) anconeus m. (C7, C8) (brachialis m. C5, C6) Netter’s Atlas of Human Anatomy 2nd ed
Grant’s Dissector 13th ed
Muscle Compartments of the Upper Limb - forearm Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.)
Muscle Compartments of the Upper Limb - forearm Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.) (FCU & ulnar ½ FDP)
Grant’s Dissector 13th ed
antebrachium antr compartment postr compartment pronator teres m. flex. carpi radialis m. palmaris longus m. flex. carpi ulnaris m. flex. digit. superf. m. flex. digit. profund. m. flex. pollicis longus m. pronator quadratus m. brachioradialis m. ext. carpi radialis longus m. ext. carpi radialis brevis m. ext. carpi ulnaris m. extensor digitorum m. extensor digiti minimi m. extensor indicis m. abd pollicis longus m. ext. pollicis longus/brevis m. supinator m.
antebrachium antr compartment (median & ulnar nn.) pronator teres m. (C6, C7) flex. carpi radialis m. (C6, C7) palmaris longus m. (C7, C8) flex. carpi ulnaris m. (C7, C8) flex. digit. superf. m. (C7, C8, T1) flex. digit. profund. m. (C7, C8, T1) flex. pollicis longus m. (C8, T1) pronator quadratus m. (C8, T1)
antebrachium antr compartment (median & ulnar nn.) pronator teres m. (C6, C7) flex. carpi radialis m. (C6, C7) palmaris longus m. (C7, C8) flex. carpi ulnaris m. (C7, C8) flex. digit. superf. m. (C7, C8, T1) flex. digit. profund. m. (C7, C8, T1) flex. pollicis longus m. (C8, T1) pronator quadratus m. (C8, T1)
ulnar n. (C7-T1) flex carpi ulnaris m. medial ½ FDP + 14 intrinsic hand muscles Netter’s Atlas of Human Anatomy 2nd ed
median n. (C5-T1) PT, FCR, PL, FDS, lat ½ FDP, FPL, PQ + 5 intrinsic hand muscles Netter’s Atlas of Human Anatomy 2nd ed
antebrachium postr compartment (radial n. C5-T1) brachioradialis m. (C5, C6) ext. carpi radialis longus m. (C6, C7) ext. carpi radialis brevis m. (C6, C7 or C7, C8) ext. carpi ulnaris m. (C7, C8) extensor digitorum m. (C7, C8) extensor digiti minimi m. (C7, C8) extensor indicis m. (C7, C8) abd pollicis longus m. (C7, C8) ext. pollicis longus/brevis m. (C7, C8) supinator m. (C5, C6)
radial n. (C5-T1) triceps brachii m., anconeus m. (brachialis m.) BR, ECRL, ECRB, ED, EDM, supinator, ECU, EI, AbdPL, EPL, EPB Netter’s Atlas of Human Anatomy 2nd ed
Grant’s Atlas of Anatomy 11th ed
Muscle Compartments of the Upper Limb - hand Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.) (FCU & ulnar ½ FDP)
Muscle Compartments of the Upper Limb - hand Anterior musculocutaneous n. Humerus radial n. Ulna Radius median n. & ulnar n. (including ECRL & brachioradialis mm.) 5th metacarpal ulnar n. & median n. Posterior Grant’s Dissector 13th ed (including a portion of the brachialis m.) (FCU & ulnar ½ FDP) (thenar mm. & 1st, 2nd lumbricals)
intrinsic hand muscles (C8, T1) 7 interosseii mm. (4 dorsal/3 palmar) 4 lumbrical mm. (1, 2, 3, 4) palmaris brevis m. adductor pollicis m. three thenar mm. (OP, abd.PB, FPB) three hypothenar mm. (ODM, abd.DM, FDMB)
intrinsic hand muscles (median & ulnar nn.) 7 interosseii mm. (4 dorsal/3 palmar) 4 lumbrical mm. (1, 2, 3, 4) palmaris brevis m. adductor pollicis m. three thenar mm. (OP, abd.PB, FPB) three hypothenar mm. (ODM, abd.DM, FDMB)
upper limb - cutaneous innervation Netter’s Atlas of Human Anatomy 2nd ed
upper limb – dermatome pattern Netter’s Atlas of Human Anatomy 2nd ed