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Anatomy > Arm > Flashcards

Arm Flashcards

1
Q

movements of anterior compartment forearm

A

flexion and pronation

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2
Q

movements of posterior compartment forearm

A

extension and supination

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3
Q

how many layers in the anterior compartment forearm

A

3
superficial
intermediate
deep

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4
Q

what is the most medial muscle in the anterior compartment of the forearm ?

A

flexor carpi ulnaris

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5
Q

what muscles are in the superficial layer of the anterior compartment of the forearm?

A

flexor carpi ulnaris
palmaris longus
flexor carpi radialis
pronator teres

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6
Q

what is the most lateral muscle in the anterior compartment of the forearm ?

A

pronator teres

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7
Q

what muscles are in the intermediate layer of the anterior compartment of the forearm?

A

flexor digitorum superficialis

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8
Q

what muscles are in the deep layer of the anterior compartment of the forearm?

A

flexor digitorum profundus
pronator quadratus
flexor pollicus longus

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9
Q

Origin, attachment, action and nerve supply of flexor carpi ulnaris

A

common flexor tendon (medial epicondyle)
and olecranon (2 heads)

5th metacarpal, hook hamate and pisiform

flexion of wrist and adduction

innervated by ulnar nerve

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10
Q

Origin, attachment, action and nerve supply of palmaris longus

A

medial epicondyle, common flexor tendon

palmar aponeurosis

flexion

median nerve

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11
Q

Origin, attachment, action and nerve supply of flexor carpi radialis

A

medial eicondyle, common flexor tendon

2nd metatarsal

flexion and abduction

median nerve

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12
Q

Origin, attachment, action and nerve supply of pronator teres

A

2 heads - medial epiondyle and coronoid process

mid shaft radius

flexion and pronation

median

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13
Q

Origin, attachment, action and nerve supply of flexor digitorum superficialis

A

2 heads
- common flexor origin and coronoid
- anterioroblique line on radius

middle phlanges

flex the PIPs

median nerve

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14
Q

Origin, attachment, action and nerve supply of flexor digitorum profundus

A

2 parts - medial and lateral

proximal 3/4 of ulnar and the interosseus membrane

medial - 4th and 5th distal phalanges
lateral - 2nd and 3rd distal phakanges

flex DIPs and wrist

medial - ulnar

lateral - AIN

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15
Q

Origin, attachment, action and nerve supply of pronator quadratus

A

distal 1/4 of radius and ulnar

primary pronator

AIN

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16
Q

Origin, attachment, action and nerve supply of flexor pollicus longus

A

anterior radius and interosseus membrane

base of thumb phalynx

flex the thumb

AIN

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17
Q

how many tunnels in the posterior compartment forearm?

A

6

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18
Q

contents of 1st tunnel in posterior forearm

A

most lateral - radial side
lateral border of anatomical snuffbox

abductor pollicis longus
extensor pollicis brevis

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19
Q

contents of 2nd tunnel in posterior forearm

A

extensor carpi radialis longus
extensor carpi radialis brevis

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20
Q

contents of 3rd tunnel in posterior forearm

A

extensor pollicis longus

21
Q

contents of 4th tunnel in posterior forearm

A

extenosr digitorum
extensor indicus

22
Q

contents of 5th tunnel in posterior forearm

A

extensor digiti minimi

23
Q

contents of 6th tunnel in posterior forearm

A

extensor carpi ulnaris

24
Q

Origin, attachment, action and nerve supply of abductor pollicus longus

A

upper 1/2 radius and ulnar ad interosseus membrane

base of 1st metacarpal

abducts and extends the thumb

PIN

25
Q

Origin, attachment, action and nerve supply of extensor pollicus brevis

A

distal 1/3 radius and interosseus membrane

phalynx thumb

PIN

extend the phalynx of thumb

26
Q

Origin, attachment, action and nerve supply of extensor carpi radialis longus

A

lateral supracondylar ridge on humerus

2nd metacarpal

radial nerve

extend and abduct

27
Q

Origin, attachment, action and nerve supply of extensor carpi radialis brevis

A

common extensor origin - lateral epicondyle

3rd metacarpal

deep radial branch

extend and abduct

28
Q

Origin, attachment, action and nerve supply of extensor pollicus longus

A

middle 1/3 ulnar and interosseus membrane

thumb phalynx

extend all joints of the thumb

PIN

29
Q

Origin, attachment, action and nerve supply of extensor digitorum

A

lateral epicondyle

extesor expansions of digitis

extend metacarpophalyngeal and interphalyngeal joints

radial

30
Q

Origin, attachment, action and nerve supply of extensor indicus

A

distal 1/3 ulnar and interousseus membrane

extensor expansion 2nd digit

extend index finger and a bit of wrist

PIN

31
Q

Origin, attachment, action and nerve supply of extensor digiti minimi

A

lateral epicondyle

extensor expansion 5th digit

extend MCPJs and IPJs

Radial

32
Q

Origin, attachment, action and nerve supply of extensor carpi ulnaris

A

lateral epicondyle and posterior ulnar

base of 5th metacarpal

extent and abduct

radial

33
Q

where do you find interossei

A

beside and infront of metacarpals
insert into extensor expansions

34
Q

what do introssei do?

A

abduct and adduct fingers

35
Q

where do you find lumbricals

A

profundus tendons
insert itno extensor expansions

36
Q

what do lumbricals do

A

extens interphalangeal and flex metacarpal phalangeal joints

37
Q

which vein runs along the medial aspet of the forearm

A

basillic

38
Q

where does the cephralic artery become deep?

A

deltopectoral fascia

39
Q

whichfascia does the cephalic vein peiece

A

clavicopectral

40
Q

what vein connects the basillic and cephalic veins

A

median cubital

41
Q

where does the axillary artery commence

A

subclavian becomes axillary at lateral border of first rib

42
Q

where does the axillary become the brachial artery

A

border of teres major

43
Q

what divides th axiallry artery into 3 parts

A

pec minor

44
Q

branches of axillary artery

A

part 1
- superior thoracic

part 2
- acromithoracic and lateral thoracic

part 3
subscap
anterior and posterior circumflex

45
Q

wjere does the brachial artery become the radial/ulnar arteries

A

neck of radius or higher

46
Q

which direction does the median nerve cross the brachial artery

A

lateral to medial at mid humerus

47
Q

does the ulna artery run deep or superficial to the common flexor orgin

A

deep

48
Q

which nerve lies medial to the axillary and brachial artery until mind humerus

A

ulnar

atmid humerus the median then crooses materal to medial

Anatomy (7 decks)

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