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phi 203 Flashcards

1
Q

Quadrangular Space

A

Humerus surgical neck, Subscapularis/ Teres Minor

A: Posterior Circumflex Artery
I: Axillary nerve

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2
Q

Triangular Space

A

Teres Major, Teres Minor

A: Circumflex Scapular Artery
I: —-

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3
Q

Triangular Interval

A

Triceps long head, Triceps lateral head

A: Profundus brachii artery
I: Radial nerve

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4
Q

Pectoralis major

A

A:
FAdIR (Flexion, Adduction,
Internal rotation)

O:
Clavicular head: anterior
medial clavicle
Sternocostal head:
sternum, costal cartilages
(upper 6)

I:
Lateral lip of the bicipital
groove

N:
Medial & lateral pectoral
nerves

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5
Q

Latissimus dorsi

A 
A:
ExAdIR (Extension,
Adduction, IR)
Raises body if upper
extremities are fixed
(e.g. climbing)
O:
Spinous process (T7-T12)
Last 3 or 4 ribs
Iliac crest
Thoracolumbar fascia

I:
Floor of the bicipital groove

N:
Thoracodorsal nerve
(middle subscapular nerve)

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6
Q

Teres Major

A

A: Internal rotation

O: Inferior angle of scapula

I: Medial lip of the bicipital
groove

N: Lower subscapular nerve

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7
Q

Supraspinatus

A

A: Abduction

O: Supraspinous fossa

I: Greater tubercle (superior
facet)

N: Suprascapular nerve

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8
Q

Infraspinatus

A

A: External rotation

O: Infraspinous fossa

I: Greater tubercle (middle
facet)

N: Suprascapular nerve

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9
Q

Teres Minor

A

A: External rotation

O: Lateral border of scapula

I: Greater tubercle (inferior
facet)

N: Axillary nerve

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10
Q

Subscapularis

A

A: Internal rotation

O: Subscapular fossa

I: Lesser tubercle

N: Upper & lower subscapular
nerves

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11
Q

Deltoid

A

A:
Anterior: flexion, IR
Middle: abduction
Posterior: extension, ER

O:
Clavicle, Acromion,
Scapular Spine

I: Deltoid tuberosity

N: Axillary nerve

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12
Q

Rotator Cuff Muscles

A

Supraspinatus
Infraspinatus
Teres Minor
subscapularis

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13
Q

Trapezius

A 
A: Upper (descending fibers):
elevation
Middle: retraction
Lower (ascending fibers):
depression
All fibers: upward rotation
O: 
Superior nuchal line
External occipital
protuberance
Nuchal ligament
Spinous process (C7-T12)

I:
Clavicle
Acromion
Scapular Spine

N:
CN XI Spinal accessory
nerve
C3, C4 Spinal nerves

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14
Q

Levator scapulae

A

A:
Elevation
Downward rotation

O:
Transverse process
(C1-C4)

I:
Medial border of scapula

N:
Dorsal scapular nerve
C3, C4 Spinal nerves

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15
Q

Rhomboid minor & major

A

A:
Retraction
Downward rotation

O:
Minor: nuchal ligament,
spinous process (C7-T1)
Major: spinous process
(T2-T5)
I:
Minor: medial end of
scapular spine
Major: medial border of
scapula

N:
Dorsal scapular nerve

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16
Q

Pectoralis Minor

A

A:
Scapular stabilization
Draws scapula anteriorly &
inferiorly

O:
3rd - 5th ribs

I:
Coracoid process

N:
Medial pectoral nerve

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17
Q

Serratus Anterior

A

A:
Protraction
Scapular stabilization
Upward rotation

O:
1st - 8th ribs

I:
Medial border of scapula

N:
Long thoracic nerve

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18
Q

Subclavius

A

A:
Clavicular depression

O:
1st rib

I:
Clavicle

N:
Nerve to subclavius

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19
Q

Biceps brachii

A

A:
Shoulder flexion
Elbow flexion
Forearm supination

O;
Long head: supraglenoid
tubercle of scapula
Short head: coracoid
process

I:
Radial tuberosity
Bicipital aponeurosis

N:
Musculocutaneous nerve

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20
Q

Coracobrachialis

A

A:
Shoulder flexion &
adduction

O:
Coracoid process

I:
Humerus medial surface

N:
Musculocutaneous nerve

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21
Q

Brachialis

A

A:
Elbow flexion

O:
Distal anterior humerus

I:
Coronoid process of ulna

N:
Musculocutaneous nerve

22
Q

Triceps brachii

A

A:
Shoulder extension-long
head
Elbow extension

O: 
Long head: infraglenoid
tubercle of scapula
Lateral head: humerus
above radial groove
Medial head: humerus
below radial groove

I:
Olecranon process of ulna

N:
Radial nerve

23
Q

Anconeus

A

A:
Elbow extension

O:
Lateral epicondyle of
humerus

I:
Olecranon process of ulna

N:
Radial nerve

24
Q

Pronator teres

A

A:
Forearm pronatio

O: 
 Ulnar head: coronoid
process
Humeral head: medial
epicondyle

I:
Radius lateral surface

N:
Median nerve

25
Q

Flexor carpi radialis

A

A:
Wrist flexion & abduction

O:
Medial epicondyle

I:
Base of 2nd metacarpal

N:
Median nerve

26
Q

Flexor carpi ulnaris

A

A:
Wrist flexion & adduction

O: 
 Ulnar head: olecranon
process
Humeral head: medial
epicondyle

I:
Pisiform
Hook of hamate
5th metacarpal

N:
Ulnar nerve

27
Q

Flexor digitorum

superficialis

A 
A:
Proximal interphalangeal
(PIP) joint flexion
Metacarpophalangeal
(MCP) joint flexion
(acts only on 2nd-5th digits)

O:
Humeroulnar head: medial
epicondyle
Radial head: anterior radius

I:
Middle phalang

N:
Median nerve

28
Q

Flexor digitorum profundus

A

A:
Distal interphalangeal (DIP)
joint flexion of 2nd-5th
digits

O:
Medial & anterior ulna
Interosseous membrane

I:
Medial half: 4th-5th distal
phalanx
Lateral half: 2nd-3rd distal
phalanx

N:
Medial half: ulnar nerve
Lateral half: median
(anterior interosseous)

29
Q

Flexor pollicis longus

A

A:
Thumb IP joint flexion

O:
Anterior radius
Interosseous membrane

I:
Thumb distal phalanx

N:
Median nerve (anterior
30
Q

Pronator quadratus

A

A:
Forearm pronation

O:
Distal anterior ulna

I:
Distal anterior radius

N:
Median nerve (anterior
31
Q

Palmaris longus

A

A:
Wrist flexion, tenses palmar
aponeurosis

O:
Medial epicondyle

I:

N:
Flexor retinaculum, palmar
aponeurosis

32
Q

Brachioradialis

A

A:
Elbow flexion

O:
Lateral supracondylar ridge
of humerus

I:
Distal radius

N:
Radial nerve

33
Q

Extensor carpi radialis

longus

A

A:
Wrist extension &
abduction

O:
Lateral supracondylar ridge
of humerus

I:
Base of 2nd metacarpal

N:
Radial nerve

34
Q

Extensor carpi radialis

brevis

A

A:
Wrist extension &
abduction

O:
Lateral epicondyle of
humerus

I:
Base of 3rd metacarpal

N:
Radial nerve

35
Q

Extensor digit

A

A:
MCP, IP extension od
2nd-5th digits

O:
Lateral epicondyle of
humerus

I:
Extensor expansion

N:
Radial nerve

36
Q

Extensor digiti minimi

A

A:
MCP, IP extension of 5th
digit

O:
Lateral epicondyle of
humerus

I:
Extensor expansion of 5th
digit

N:
Radial nerve

37
Q

Extensor carpi ulnaris

A

A:
Wrist extension &
adduction

O:
Lateral epicondyle of
humerus

I:
Base of 5th metacarpal

N:
Radial nerve

38
Q

Supinator

A

A:
Forearm supination

O: 
Lateral epicondyle, radial
collateral & annular
ligaments, supinator fossa,
ulnar crest

I:
Proximal ⅓ of radius

N:
Radial nerve

39
Q

Extensor indicis

A

A:
MCP, IP extension of 2nd
digit

O:
Distal ⅓ of ulna

I:
Extensor expansion of 2nd
digit

N:
Radial nerve

40
Q

Abductor pollicis longus

A

A:
Carpometacarpal (CMC)
joint abduction & extension
of thumb

O: 
Proximal radius & ulna,
interosseous membrane
I:
Base of 1st metacarpal

N:
Radial nerve

41
Q

Extensor pollicis longus

A

A:
Thumb IP, MCP, CMC
extension

O:
Mid ⅓ of ulna, interosseous
membrane

I:
Base of thumb distal
phalanx

N:
Radial nerve

42
Q

Extensor pollicis brevis

A

A:
Thumb MCP, CMC
extension

O:
Distal ⅓ of radius,
interosseous membrane

I:
Base of thumb proximal
phalanx

N:
Radial nerve

43
Q

Opponens pollicis

A

A:
Thumb opposition

O:
Flexor retinaculum
Tubercles of scaphoid &
trapezium

I:
1st metacarpal lateral side

N:
Median nerve

44
Q

Abductor pollicis brevis

A

A:
Thumb abduction

O:
Flexor retinaculum
Tubercles of scaphoid &
trapezium

I:
Base of thumb proximal
phalanx lateral side

N:
Median nerve

45
Q

Flexor pollicis brevis

A

A:
Thumb flexion

O:
Flexor retinaculum
Tubercles of scaphoid &
trapezium

I:
Base of thumb proximal
phalanx lateral side

N:
Median nerve

46
Q

Adductor pollicis

A

A:
Thumb adduction

O:
Oblique head: base od 2nd
& 3rd metacarpals, capitate

I:
Base of thumb proximal
phalanx medial side
Transverse head: shaft of
3rd metacarpal

N:
Ulnar nerve

47
Q

Abductor digiti minimi

A

A:
5th digit abduction

O:
Pisiform

I:
Base of 5th digit proximal
phalanx medial side

N:
Ulnar nerve

48
Q

Flexor digiti minimi

A

A:
5th digit flexion

O:
Hook of hamate
Flexor retinaculum

I:
Base of 5th digit proximal
phalanx medial side

N:
Ulnar nerve

49
Q

Opponens digiti minimi

A

A:
5th digit opposition with
thumb

O:
Hook of hamate
Flexor retinaculum

I:
5th metacarpal medial
border

N:

50
Q

Lumbricals

A

A:
MCP flexion, IP extension
of 2nd -5th digits

O:
Tendons of flexor digitorum
profundus

I:
Extensor expansion of
2nd-5th digits

N:
1st & 2nd (lateral): median
3rd & 4th (medial): ulnar

51
Q

Dorsal interossei

A 
A:
Abduction of 2nd-5th digits
(DAB-Dorsal Abduction)
MCP flexion, IP extension
of 2nd -5th digits

O:
Adjacent sides of two
metacarpals

I:
Extensor expansion of
2nd-5th digits
Bases of proximal
phalanges

N:
Ulnar nerve

52
Q

Palmar interossei

A 
A:
Adduction of 2nd-5th digits
(PAD-Palmar Adduction)
MCP flexion, IP extension
of 2nd -5th digits

O:
Palmar surface of 2nd, 4th,
& 5th metacarpals

I:
Extensor expansion of 2nd,
4th, & 5th digits
Bases of proximal
phalanges

N:
Ulnar nerve

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