Organization of the Upper Limb
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Transcript of Organization of the Upper Limb
Organization of theUpper Limb
Robert S. Staron, Ph.D.Summer Anatomy Immersion
Grant’s Atlas of Anatomy 8th ed
Grant’s Atlas 8th ed
Antr division: flexor comp.
Postr division: ext comp.
Netter’s Atlas of Human Embry 2002
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
Brachial Plexus
Netter’s Atlas 2nd ed
1) trapezius m.2) latissimus dorsi
m.3) levator scapulae
m.4) rhomboideus
major m.5) rhomboideus
minor m.6) serratus anterior
m.
1) infraspinatus m.
2) supraspinatus m.
3) subscapularis m.
4) teres minor m.
5) teres major m.
6) deltoid m.
Extrinsic shoulder mm.Intrinsic shoulder mm.
Anterior thorax mm.1) pectoralis major and minor mm.2) subclavius m.
Netter’s Atlas of Human Anatomy 2nd ed
rotator cuff musculature
Netter’s Atlas 2nd ed
Netter’s Atlas 2nd ed
Grant’s Dissector 13th ed
brachium
biceps brachii m.
long head short
head brachialis m. coracobrachial
is m.
triceps brachii m.
lateral head
medial head
long head anconeus m.
antr compartment
postr compartment
musculocutaneous n.
(C5-C7)
Netter’s Atlas of Human Anatomy 2nd ed
biceps brachii m.brachialis m.coracobrachialis m.
axillary n. (C5-C6)
radial n. (C5-T1)
Netter’s Atlas of Human Anatomy 2nd ed
deltoid m.teres minor m.
triceps brachii m.anconeus m.(brachialis m.)
Grant’s Dissector 13th ed
Grant’s Dissector 13th ed
antebrachium 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.
antr compartment
postr compartment
radial n. (C5-T1)
Netter’s Atlas of Human Anatomy 2nd ed
triceps brachii m., anconeus m.(brachialis m.)
BR, ECRL, ECRB, ED, EDM, supinator, ECU, EI, AbdPL, EPL, EPB
ulnar n. (C7-T1)
Netter’s Atlas of Human Anatomy 2nd ed
flex carpi ulnaris m.medial ½ FDP
+ 14 intrinsic handmuscles
median n. (C5-T1)
Netter’s Atlas of Human Anatomy 2nd ed
PT, FCR, PL, FDS, lat ½ FDP, FPL, PQ
+ 5 intrinsic handmuscles
Grant’s Atlas of Anatomy 11th ed
intrinsic hand muscles 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 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) (median n.) (ulnar n.)
upper limb - cutaneous innervation
Netter’s Atlas of Human Anatomy 2nd ed
upper limb –
dermatome pattern
Netter’s Atlas of Human Anatomy 2nd ed