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Anatomy 2nd Half > Arm And Forearm > Flashcards

Arm And Forearm Flashcards

1
Q

Coracobrachialis

A

O: Coracoid process
I: mid point medial shaft of humerus
I; musculocutaneus
Flexion and addiction

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2
Q

Biceps brachii

A

O: Long head - supraglenoid fossa
Short head - coracoid process
I: radial tuberosity
I: musculocutaneus
Prime supination
Flexor of elbow
Assists in shoulder flexion

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3
Q

Brachialis

A

O: Anterior shaft lower half of humerus
I: ulnar tuberosity
I: musculocutaneus
Prime flexor of elbow

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4
Q

Triceps Brachii

A

O: long head - infraglenoid tubercle
Lateral head - shaft of humerus lateral to radial groove
Medial head - shaft medial to radial groove
I: olecranon process of ulna
I: Radial
Prime extensor of the know
Some shoulder extension

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5
Q

Anconeus

A

O: lateral epicodyle
I: upper shaft ulnar
I: radial
Extension of elbow

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6
Q

Median N pathway

A

2 inches below coracoid process
Accompanies brachial A in medial bicepetal groove
Cubical fossa
Between 2 heads of pronator teres
Found between FDS and FDP

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7
Q

Ulnar N pathway

A

2 inches below coracoid process Accompanies brachial A in medial bicepetal groove
No branches in arm
Penetrates inter muscular septum and midpoint of medial arm
Passes behind medial epicondyle
Deep to flexor carpi ulnaris and through tunnel of guyon

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8
Q

Musculocutaneus N pathway

A

1 inch below coracoid process Penetrates coracoid brachialis
Enters between biceps brachii and brachialis
Passes in front of lateral epicondyle
Changes to lateral cutaneous never of forearm that goes to styloid process

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9
Q

Radial N pathway

A

Through triangular interval
Passes through radial/spiral groove
3 motor branches
4 sensory
- poster cutaneous N of arm & forearm
- inferior lateral cutaneous N of arm
- superficial radial nerve

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10
Q

Brachial A branches

A

Deep brachial (follows radial N in spiral groove)
- supplies tricep
- divides into middle and radial collateral A for elbow supply
Superior ulnar Collateral A and inferior ulnar collateral artery for elbow supply
2 terminal branches 1-2 inches after passing in front of elbow: radial (superficial to bicepetal aponeurosis) and ulnar artery (medial)

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11
Q

Pronator Teres

A

O: humeral head - medial epicondyle
Ulnar head - coronoid process of ulnar
I: mid shaft of radius
I: median nerve
Prime pronator
Elbow flexion

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12
Q

Flexor carpi radialis

A

O: medial epicondyle
I: proximal end 2nd and 3rd MC base
I: median nerve
Radial deviation
Wrist flexion
Elbow flexion

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13
Q

Palmaris longus

A

O: medial epicondyle
I: apex of palmar aponeurosis
I: median nerve
Wrist flexion
Elbow flexion

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14
Q

Flexor carpi ulnaris

A

O: humeral head: medial epicondyle
Ulnar head - olecranon process of ulnar
I: pisiform (indirectly the tendon continues as ligament inserting into hamate via pisihamate lig and base of 5th MC via pisi carpal lig
I: ulnar nerve
Ulnar deviation
Wrist flexion
Elbow flexion

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15
Q

Flexor digitotum superficial is

A

O; humero ulnar head: medial epicondyle and coronoid process
Radial head: anterior shaft of radius
I: turns into 4 tendons inserting on either side of middle phalanges digit 2-5
I: median N
MCP and PIP digits 2-5
Elbow flexion

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16
Q

Flexor digitorum profundus

A

O: anterior shaft ulnar
I: distal phalanges 2-5
I: medial half - ulnar nerve
Lateral half anterior interoseus (branch of median N)
Prime mover MCP wrist PIP DIP flexion 2-5

17
Q

Flexor policies longus

A

O: shaft of radius (some medial epicondyle)
I: distal phalanx thumb
I: anterior interrosseus N
Prime flexor of thumb
Radial deviation
Weak Wrist and elbow flexion

18
Q

Pronator quadratus

A

O: anterior shaft Ulna
I: anterior shaft radius
I: anterior interosseous
Pronator

19
Q

Brachioradialis

A

O: lateral supercondylar ridge
I: styloid process radius
I: radial
Flexes elbow

20
Q

Externsor carpi radialis longus

A

O: lateral supracondylar ridge
I: prox end 2nd MC
I: radial N
Extend elbow & wrist + radial deviation

21
Q

Extensor carpi radialis brevis

A

O: lateral epicondyle
I: prox end 3rd MC
I: deep radial N
Extend elbow& wrist + radial deviation

22
Q

Extensor digitorum

A

O: Lateral epicondyle
I: 4 tendons insert to proximal pharynx DDE digits 2-5 (through which they reach mid and distal phalynx)
I: posterior Interosseous
Prime extensor of wrist, carpo-phalangeal joint and digit 3,4 PIP DIP
Elbow extension

23
Q

Extensor digiti minimi

A

O: lateral epicondyle
I: DDE digit 5
I: posterior interosseous
Prime extensor digit 5
Wrist and elbow extension
Ulnar deviation

24
Q

Extensor carpi ulnaris

A

O: lateral epicondyle and posterior border of ulnar
I: prox end 5th MC bone
I: posterior interosseous

Wrist and elbow extension
Ulnar deviation

25
Q

Abductor policis longus

A

O: posterior ulnar and radius + interosseous membrane
I: lateral side prox end 1st MC
I: posterior interosseous
Prime Thumb abductor

26
Q

Extensor policis longus

A

O: posterior ulna and adjacent interosseous membrane
I: prox end distal phalynx 1st digit
I: posterior interosseous
Prime thumb extensor

27
Q

Extensor policis brevis

A

O: posterior radius and adjacent interosseous membrane
I: prox phalynx 1st digit
I: posterior interosseous
Extend thumb
Extend and abduct wrist

28
Q

Extensor indices

A

O: post ulna and adjacent interosseous membrane
I: DDE digit 2
I: posterior interosseous
Prime index finger extension
Extend wrist

29
Q

Supinator

A

O: superficial head - lateral epi
Deep head - supinator crest (short bony crest on ulna)
I: the 2 heads meet posterior to neck of radius and insert to shaft of radius
I: deep radial or posterior interosseous
Supinate

30
Q

Movement of mid carpal vs radiocarpal in flexion and extension of wrist

A

Extension: first 50 degrees are at midcarpal and next 30 at radio carpal

Flexion: first 50 degrees are at radiocarpal and next 30 at mid carpal

31
Q

Anatomical snuff box borders and structures

A

Tendons of EPL & EPL
cephalic vein
Radial A
Superficial radial N

32
Q

Carpal tunnel border and content

A

Roof: flexor retinaculum
Floor: carpal bone
Content: 4 tendons FDS, 4 tendons FDP, tendon of flexor policis longus

Anatomy 2nd Half (5 decks)

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