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BPK 326 > Lecture 7: The Arm & Forearm > Flashcards

Lecture 7: The Arm & Forearm Flashcards

1
Q

Biceps Brachii long head OIA

A

O: supraglenoid tubercle of scapula

I: radial tuberosity

A: flexes/supinates forearm at elbow

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2
Q

Biceps Brachii short head OIA

A

O: caracoid process

I: bicipital aponeruosis & fascia of the medial forearm

A: flexes/supinates forearm at elbow

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3
Q

Brachialis OIA

A

O: body of humerus

I: ulnar tuberosity

A: flexes the forearm at the elbow

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4
Q

Triceps Brachii long head OIA

A

O: infraglenoid tubercle of the scapula

I: posterior olecranon process of the ulna

A: extends forearm at elbow, extends arm at shoulder

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5
Q

Triceps Brachii lateral head OIA

A

O: body of the humerus, superior to the radial groove

I: posterior olecranon process

A: extends the forearm at the elbow

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6
Q

Triceps brachii medial head OIA

A

O: body of the humerus, inferior to the radial groove

I: posterior olecranon process

A: extends the forearm at the elbow

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7
Q

flexors and pronators are found in the

A

anterior forearm

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8
Q

extensors and supinators are found in the

A

posterior forearm

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9
Q

Supination definition

A

palm up

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10
Q

Pronation definition

A

palm down

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11
Q

Supination muscles

A
  • supinator
  • biceps brachii
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12
Q

Pronation muscles

A
  • pronator teres
  • pronator quadratus
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13
Q

Pronator teres OIA

A

O: medial epicondyle of humerus

I: lateral surface of radius

A: pronates the forearm at elbow

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14
Q

Flexor carpi radialis OIA

A

O: medial epicondyle of humerus

I: base of the 2nd metacarpal

A: flexes hand at wrist, abducts hand at wrist

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15
Q

Palmaris longus OIA

A

O: medial epicondyle of humerus

I: palmar aponeurosis

A: flexes hand at wrist, tenses palmar aponeurosis

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16
Q

Flexor carpi ulnaris OIA

A

O: medial epicondyle of humerus, olecranon of ulna

I: base of 5th metacarpal, hamate/pisiform bones

A: flexes hand at wrist, adducts hand at wrist

17
Q

Flexor digitorum superficialis OIA

A

O: medial epicondyle of humerus, coronoid process of ulna, upper surface of the radius

I: middle phalanges of the hand

A: flexes middle phalanges, flexes hand at wrist

18
Q

Flexor digitorum profundus OIA

A

O: anterior surface of the ulna, interosseous membrane

I: distal phalanges of digits 2-5

A: flexes hand at wrist, flexes fingers

19
Q

Brachioradialis OIA

A

O: lateral supracondylar ridge of the humerus

I: styloid process of the radius

A: flexes arm at the elbow, pronates arm at the elbow

20
Q

Extensor carpi longus OIA

A

O: lateral supracondylear ridge of humerus

I: base of the 2nd metacarpal

A: extends hand at wrst, abducts hand at wrist

21
Q

Extensor carpi radialis brevis OIA

A

O: lateral epicondyle of humerus

I: base of 3rd metacarpal

A: extends hand at wrist, abducts hand at wrist

22
Q

Extensor digiti minimi OIA

A

O: lateral epicondyle of humerus

I: dorsal aponeurosis of 5th digit

A: extends 5th digit, contributes to extension of hand at wrist

23
Q

Extensor carpi ulnaris OIA

A

O: lateral epicondyle of humerus, posterior surface of ulna

I: base of 5th metacarpal

A: extends hand at wrst, adducts hand at wrist

24
Q

Anconeus OIA

A

O: lateral epicondyle of the humerus

I: olecranon of the ulna

A: extends the forearm at elbow, stablizers in pronation/supination

25
Q

Supinator OIA

A

O: lateral epicondyle of humerus, supinator crest of ulna

I: posterior surface of radius

A: supinates forearm at elbow

26
Q

Extensor Indicis OIA

A

O: posterior surface of ulna, interosseous membrane

I: distal aponeurosis of 2nd digit

A: extends the 2nd digit, extends hand at wrist

27
Q

Coracobrachialis Action

A
  • Flexes/Adducts arm at GHJ
  • Interally rotates arm at GHJ
28
Q

Teres Major Action

A

Internal rotation/Adduction/Extension of the arm at the GHJ

29
Q

Supraspinatus Action

A

External rotation/Abduction of the arm at the GHJ

30
Q

Infraspinatus action

A

external rotation of the arm at the GHJ

31
Q

Teres Minor Action

A

external roation of the arm at the GHJ

32
Q

Subscapularis Action

A

internal rotation of the arm at the GHJ

33
Q

Rotator Cuff Muscles and combined action

A
  • subscapularis
  • supraspinatus
  • infraspinatus
  • teres minor

CIRCUMDUCTION

BPK 326 (24 decks)

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