Organization of the upper limb
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Organization of the Upper Limb. Robert S. Staron, Ph.D. Summer Anatomy Immersion. Gray’s Anatomy 37 th ed. Grant’s Atlas of Anatomy 8 th ed. Grant’s Atlas 8 th ed. Grant’s Atlas of Anatomy 8 th ed. Antr division: flexor comp. Postr division: ext comp.

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Organization of the Upper Limb

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Organization of the upper limb

Organization of theUpper Limb

Robert S. Staron, Ph.D.

Summer Anatomy Immersion


Organization of the upper limb

Gray’s Anatomy 37th ed

Grant’s Atlas of Anatomy 8th ed


Organization of the upper limb

Grant’s Atlas 8th ed

Grant’s Atlas of Anatomy 8th ed


Organization of the upper limb

Antr division:

flexor comp.

Postr division:

ext comp.

Netter’s Atlas of Human Embryology 2002


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

5th metacarpal

Posterior


Origin of limb muscles

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


Organization of the upper limb

Hollinshead’s Textbook of Anatomy 5th ed


Organization of the upper limb

Grant’s Dissector 13th ed


Organization of the upper limb

21.

Rohen/YokochiColor Atlas of Anatomy 2nded


Organization of the upper limb

Brachial Plexus

Netter’s Atlas 2nd ed


Organization of the upper limb

hand – forearm – arm – shoulder

distal proximal

Grant’s Atlas of Anatomy 8th ed


Organization of the upper limb

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.

Extrinsic shoulder mm.

Intrinsic shoulder mm.

Anterior thorax mm.

1) pectoralis major and minor mm.

2)subclavius m.


Organization of the upper limb

trapezius m. (spinal accessory n. - CN XI + C3 & C4)

latissimusdorsi 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)

Extrinsic shoulder mm.

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)


Organization of the upper limb

Grant’s Atlas 8th ed

Grant’s Atlas of Anatomy 8th ed


Organization of the upper limb

Netter’s Atlas of Human Anatomy 2nd ed


Organization of the upper limb

Netter’s Atlas 2nd ed


Organization of the upper limb

infraspinatus m. (suprascapular n. - C5, C6)

supraspinatus m. (suprascapular n. - C5, C6)

subscapularis m. (upper + lower subscapularnn. - C5, C6)

teres minor m. (axillary n. - C5, C6)

teres major m. (lower subscapular n. - C5, C6)

deltoid m. (axillary n. - C5, C6)

Intrinsic shoulder mm.


Organization of the upper limb

Grant’s Atlas 8th ed

Grant’s Atlas of Anatomy 8th ed


Organization of the upper limb

Netter’s Atlas of Human Anatomy 2nd ed


Organization of the upper limb

rotator cuff musculature

Netter’s Atlas 2nd ed


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb - arm

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

5th metacarpal

Posterior


Organization of the upper limb

Grant’s Dissector 13th ed


Brachium

biceps brachii m.

long head

short head

brachialis m.

coracobrachialis m.

triceps brachii m.

lateral head

medial head

long head

anconeus m.

brachium

antr compartment

postr compartment


Organization of the upper limb

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


Organization of the upper limb

axillary n. (C5-C6)

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


Organization of the upper limb

Grant’s Dissector 13th ed


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb - forearm

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

5th metacarpal

Posterior


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb - forearm

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

(FCU & ulnar ½

FDP)

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

5th metacarpal

Posterior


Organization of the upper limb

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. carpiradialislongus m.

ext. carpiradialisbrevis m.

ext. carpiulnaris m.

extensor digitorum m.

extensor digitiminimi m.

extensor indicis m.

abdpollicislongus m.

ext. pollicislongus/brevis m.

supinator m.

antebrachium

antr compartment

postr compartment


Antebrachium1

pronatorteres m. (C6, C7)

flex. carpiradialis m. (C6, C7)

palmarislongus m. (C7, C8)

flex. carpiulnaris m. (C7, C8)

flex. digit. superf. m. (C7, C8, T1)

flex. digit. profund. m. (C7, C8, T1)

flex. pollicislongus m. (C8, T1)

pronatorquadratus m. (C8, T1)

antebrachium

antr compartment (median & ulnar nn.)


Antebrachium2

pronatorteres m. (C6, C7)

flex. carpiradialis m. (C6, C7)

palmarislongus m. (C7, C8)

flex. carpiulnaris m. (C7, C8)

flex. digit. superf. m. (C7, C8, T1)

flex. digit. profund. m. (C7, C8, T1)

flex. pollicislongus m. (C8, T1)

pronatorquadratus m. (C8, T1)

antebrachium

antr compartment (median & ulnar nn.)


Organization of the upper limb

ulnar n. (C7-T1)

flex carpi ulnaris m.

medial ½ FDP

+ 14 intrinsic hand

muscles

Netter’s Atlas of Human Anatomy 2nd ed


Organization of the upper limb

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


Antebrachium3

brachioradialis m. (C5, C6)

ext. carpiradialislongus m. (C6, C7)

ext. carpiradialisbrevis m. (C6, C7 or C7, C8)

ext. carpiulnaris m. (C7, C8)

extensor digitorum m. (C7, C8)

extensor digitiminimi m. (C7, C8)

extensor indicis m. (C7, C8)

abdpollicislongus m. (C7, C8)

ext. pollicislongus/brevis m. (C7, C8)

supinator m. (C5, C6)

antebrachium

postr compartment (radial n. C5-T1)


Organization of the upper limb

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


Organization of the upper limb

Grant’s Atlas of Anatomy 11th ed


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb - hand

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

(FCU & ulnar ½

FDP)

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

5th metacarpal

Posterior


Organization of the upper limb

Anterior

Muscle Compartments of the Upper Limb - hand

Grant’s Dissector 13th ed

musculocutaneous n.

Humerus

radial n.

Posterior

(including a portion

of the brachialis m.)

Anterior

median n. & ulnar n.

(FCU & ulnar ½

FDP)

Radius

Ulna

radial n.

(including ECRL & brachioradialis mm.)

Posterior

ulnar n. & median n.

Anterior

(thenar mm. & 1st, 2nd lumbricals)

5th metacarpal

Posterior


Intrinsic hand muscles c8 t1

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

intrinsic hand muscles (median & ulnarnn.)

  • 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)


Organization of the upper limb

upper limb -

cutaneous innervation

Netter’s Atlas of Human Anatomy 2nd ed


Organization of the upper limb

upper limb –

dermatome pattern

Netter’s Atlas of Human Anatomy 2nd ed


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