Upper Extremities I and II: Muscle Locations Flashcards

1
Q

Trapezius

A

O: ext. occipital protuberance, sup. nuchal line, nuchal ligament, C7-T12 spinous processes

I: scapula - lateral third of clavicle, acromion, spine

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2
Q

Latissimus dorsi

A

O: thoracolumbar fascia, lower thoracic spinous processes, iliac crest

I: intertubercular sulcus

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3
Q

Levator scapula

A

O: C1-C4 transverse processes

I: scapula - vertebral border superior to spine

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4
Q

Rhomboid minor

A

O: nuchal ligament, C7/T1 spinous processes

I: scapula - triangle area of spine

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5
Q

Rhomboid major

A

O: upper thoracic spinous processes

I: vertebral border of scapula

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6
Q

Deltoid

A

O: scapula - (clavicular) lateral third of clavicle, (acromial) acromion, (spinous) spine

I: deltoid tuberosity

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7
Q

Subscapularis

A

O: subscapular fossa

I: lesser tubercle

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8
Q

Supraspinatus

A

O: supraspinatus fossa

I: greater tubercle

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9
Q

Infraspinatus

A

O: infraspinatus fossa

I: greater tubercle

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10
Q

Teres minor

A

O: axillary border

I: greater tubercle

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11
Q

Teres major

A

O: inferior portion of axillary border

I: medial lip of intertubercular sulcus

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12
Q

Triceps brachii

A

O: (long) infraglenoid tubercle, (lateral) lateral to radial groove, (medial) medial to radial groove

I: olecranon process

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13
Q

Brachioradialis

A

O: lateral supraepicondylar ridge

I: lateral sfc of distal radius

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14
Q

Extensor carpi radialis longus

A

O: lateral supraepicondylar ridge

I: base of metacarpal II

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15
Q

Extensor carpi radialis brevis

A

O: common extensor origin

I: base of metacarpal III

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16
Q

Extensor digitorum

A

O: common extensor origin

I: extensor expansion of digits 2-5

17
Q

Extensor digiti minimi

A

O: common extensor origin

I: extensor expansion of digit 5

18
Q

Extensor carpi ulnaris

A

O: common extensor origin

I: base of metacarpal V

19
Q

Supinator

A

O: lateral epicondyle and prox. ulna lateral sfc

I: lateral sfc. of prox. radius

20
Q

Extensor indices

A

O: distal ulna posterior and interosseous membrane

I: extensor expansion of digit 2

21
Q

Abductor pollicis longus

A

O: mid-prox. ulna lateral sfc. and interosseous membrane

I: dorsal aspect of metacarpal I

22
Q

Extensor pollicus brevis

A

O: distal radius medial sfc. and interosseous membrane

I: dorsal aspect of pollical prox. phalanx

23
Q

Extensor pollicus longus

A

O: mid-distal ulna lateral sfc and interosseous membrane

I: dorsal aspect of pollical distal phalanx