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MOINA > Upper extremity > Flashcards

Upper extremity Flashcards

1
Q

Subscapularis

A

O: Subscapular fossa of
scapula

I: Lesser tubercle of
humerus

N: Upper and lower
subscapular nerves
(C5 - C6)

A: Shoulder joint: Arm internal
rotation; Stabilizes humeral
head in glenoid cavity

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2
Q

Teres minor

A

O: Lateral border of scapula

I: Greater tubercle of
humerus

N: Axillary nerve (C5, C6)

A: Shoulder joint: Arm
external rotation, Arm
adduction; Stabilizes
humeral head in glenoid
cavity
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3
Q

Supraspinatus

A

O: Supraspinous fossa of
scapula

I: Greater tubercle of
humerus

N: Suprascapular nerve (C5,
C6)

A: Shoulder joint: Arm
abduction; Stabilizes
humeral head in glenoid
cavity

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4
Q

Infraspinatus

A

O: Infraspinous fossa of
scapula

I: Greater tubercle of
humerus

N: Suprascapular nerve (C5,
C6)

A: Shoulder joint: Arm
external rotation; Stabilizes
humeral head in glenoid
cavity

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5
Q

Deltoid

A 
O: Clavicular part: Lateral
third of clavicle
Acromial part: Acromion
of scapula
Spinal part: Spine of
scapula

I: Deltoid tuberosity of
humerus

N: Axillary nerve (C5-C6)

A: Shoulder joint: Arm flexion,
Arm internal rotation
(clavicular part), Arm
abduction (acromial part),
Arm extension, Arm lateral
rotation (spinal part)
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6
Q

Teres major

A

O: Inferior angle and lower
part of lateral border of
scapula

I: Crest of lesser tubercle of
humerus (a.k.a. Medial lip
of intertubercular sulcus)

N: thoracodorsal nerves
(C5- C7)

A: Shoulder joint: Arm internal
rotation, Arm extension,
Arm adduction

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7
Q

Coracobrachialis

A

O: Coracoid process of
scapula

I: Anteromedial surface of
humeral shaft

N: Musculocutaneous nerve
(C5 - C6)

A: Shoulder joint: Arm flexion,
Arm adduction

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8
Q

Biceps brachii

A

O: Long head: Supraglenoid
tubercle of scapula
Short head: Coracoid
process of scapula

I:Radial tuberosity of
radius

N: Musculocutaneous nerve
(C5 - C6

A:Elbow joint: Forearm
flexion and supination;
Shoulder joint: Weak arm
flexion

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9
Q

Brachialis

A

O: Distal half of anterior
surface of humerus

I: Ulnar tuberosity,
Coronoid process of ulna

N: Musculocutaneous nerve
Radial nerve (C5-C7)

A; Elbow joint: Forearm
flexion (in all positions)

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10
Q

Triceps brachii

A 
O: Long head: Infraglenoid
tubercle of scapula
Lateral head: Posterior
surface of humerus
(superior to radial groove)
Medial head: Posterior
surface of humerus
(inferior to radial groove)

I: Olecranon of ulna and
fascia of forearm

N: Radial nerve (C6 - C8)

A: Shoulder joint: Arm
extension and adduction
(long head);
Elbow joint: Forearm
extension
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11
Q

Anconeus

A

O: Lateral epicondyle of
humerus

I: Lateral surface of
olecranon

N: Radial nerve (C7, C8)

A; Elbow joint: Assists in
forearm extension;
Stabilization of elbow joint

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12
Q

Pronator teres

A 
O; Humeral head: Medial
supracondylar ridge of
humerus
Ulnar head: Coronoid process
of ulna

I; Lateral surface of
radius (distal to
supinator)

N; Median nerve
(C6, C7)

A; Elbow joint: Forearm flexion;
Proximal radioulnar joint:
Forearm pronation

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13
Q

Flexor carpi radialis

A

O; Medial epicondyle of humerus

I; Bases of metacarpal
bones 2-3

N; Median nerve
(C6, C7)

A; Wrist joint:Wrist flexion,
Wrist abduction

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14
Q

Flexor carpi ulnaris

A

O; Medial epicondyle of
humerus, Olecranon and
posterior border of ulna

I; Pisiform bone,
Hamate bone, Base
of metacarpal bone 5

N; Ulnar nerve
(C7-T1)

A; Wrist joint:Wrist flexion,
Wrist adduction

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15
Q

Palmaris longus

A

O; Medial epicondyle of humerus

I; Flexor retinaculum,
Palmar aponeurosis

N; Median nerve
(C7, C8)

A; Wrist joint: Wrist flexion;
Tenses palmar aponeurosis

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16
Q

Flexor digitorum profundus

A

O; Proximal half of anterior
surface of ulna, Interosseous
membrane

I; Palmar surfaces of
distal phalanges of
digits 2-5

N; Digits 2-3: Median
nerve (anterior
interosseous nerve);
Digits 4-5: Ulnar
nerve (C8, T1)

A; Metacarpophalangeal and
interphalangeal joints 2-5:
Finger flexion

17
Q

Flexor pollicis longus

A

O; Anterior surface of radius and
interosseous membrane

I; Palmar surface of
distal phalanx of
thumb

N; Median nerve
(anterior
interosseous nerve)
(C7, C8)

A; Metacarpophalangeal and
interphalangeal joint 1:
Thumb flexion

18
Q

Pronator quadratus

A

O; Distal anterior surface of ulna

I; Distal anterior
surface of radius

N; Median nerve
(anterior
interosseous nerve)
(C7, C8)

A; Proximal radioulnar joint:
Forearm pronation

19
Q

Brachioradialis

A

O; Lateral supracondylar
ridge of humerus,
Lateral intermuscular
septum of arm

I; Styloid
process of radius

N; Radial Nerve (C5- C8)

A; Elbow joint: Forearm
flexion (when semi
pronated)

20
Q

Extensor carpi

radialis longus

A

O; Lateral supracondylar
ridge of humerus,
Lateral intermuscular
septum of arm

I; Posterior aspect of base
of metacarpal bone 2

N; Radial Nerve (C5- C8)

A; Wrist joints: Hand
extension, Hand
abduction (radial
deviation)

21
Q

Extensor carpi

radialis brevis

A

O; Lateral epicondyle of
humerus (common
extensor tendon)

I; Posterior aspect of base
of metacarpal bone 3

N; Radial Nerve (C5- C8)

A; Wrist joints: Hand
extension, Hand
abduction (radial
deviation)

22
Q

Extensor

digitorum

A

O; Lateral epicondyle of
humerus (common
extensor tendon)

I; Extensor expansions of
digits 2-5

N; Posterior interosseous
nerve (C7, C8)

A; Metacarpophalangeal /
Interphalangeal joints
2-5: Finger extension

23
Q

Supinator

A 
O; Lateral epicondyle of
humerus, Radial
collateral ligament,
Anular ligament,
Supinator crest of ulna

I; Lateral, posterior, and
anterior surfaces of
proximal third of radius

N; Posterior interosseous
nerve (C7, C8)

A; Proximal radioulnar
joint: Forearm
supination

24
Q

Extensor indicis

A

O; Posterior surface of
distal third of ulna and
interosseus membrane

I; Extensor expansion of
index finger

N; Posterior interosseous
nerve (C7, C8)

A; Wrist joints:
Weak hand extension
Metacarpophalangeal
and interphalangeal
joints of index finger:
Finger extension
25
Q

Opponens

pollicis

A

O; Tubercle of trapezium
bone, Flexor retinaculum

I; Radial border of metacarpal
bone 1

N; Recurrent branch of
median nerve (C8,
T1)

A; Carpometacarpal joint 1:
Thumb opposition

26
Q

Abductor

pollicis brevis

A

O; Tubercles of scaphoid and
trapezium bones, Flexor
retinaculum

I; Lateral aspect of base of
proximal phalanx 1 (via radial
sesamoid bone)

N; Recurrent branch of
median nerve (C8,
T1)

A; Carpometacarpal joint 1:
Thumb abduction

27
Q

Flexor pollicis

brevis

A 
O; Superficial head: Flexor
retinaculum, Tubercle of
trapezium bone
Deep head: Trapezoid and
capitate bones

I; Lateral aspect of base of
proximal phalanx 1 (via radial
sesamoid bone)

N; Superficial head:
Recurrent branch of
median nerve
Deep head: Deep
branch of ulnar
nerve (C8, T1)

A; Carpometacarpal and
metacarpophalangeal joint
1: Thumb flexion

28
Q

Adductor

pollicis

A 
O; Transverse head: Palmar
base of metacarpal bone 3
Oblique head: Capitate
bone, Palmar bases of
metacarpal bones 2 & 3

I; Medial base of proximal
phalanx 1 (via ulnar sesamoid
bone)

N; Deep branch of
ulnar nerve (C8, T1)

A; Carpometacarpal joint 1:
Thumb adduction

29
Q

Abductor digiti

minimi

A

O; Pisiform bone
(Pisohamate ligament,
Tendon of flexor carpi
ulnaris)

I; Ulnar side of base of proximal
phalanx of digit 5, Extensor
expansion of digit 5

N; Deep branch of ulnar
nerve (C8, T1)

A; Metacarpophalangeal joint
5: Finger abduction and
flexion; Interphalangeal
joints: Finger extension

30
Q

Flexor digiti

minimi

A

O; Hook of hamate, Flexor
retinaculum

I; Base of proximal phalanx of
digit 5

N; Deep branch of ulnar
nerve (C8, T1)

A; Metacarpophalangeal joint
5: Finger flexion (+ Finger
lateral rotation/opposition)

31
Q

Opponens digiti

minimi

A

O; Hook of hamate, Flexor
retinaculum

I; Ulnar aspect of metacarpal
bone 5

N; Deep branch of ulnar
nerve (C8, T1)

A; Carpometacarpal joint 5:
Finger flexion, Finger
lateral rotation/opposition

32
Q

Palmaris brevis

A

O; Palmar aponeurosis,
Flexor retinaculum

I; Dermis of skin of hypothenar
region

N;Superficial branch of
ulnar nerve (C8, T1)

A; Tightens palmar
aponeurosis, Tightens grip

MOINA (3 decks)

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