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IPAP A&P 1 Upper Limbs > 52X Upper Limbs > Flashcards

52X Upper Limbs Flashcards

1
Q

Which nerve supplies cutaneous innervation to the lateral/anterior aspect of the forearm & what nerve does it originate from?

A

Lateral antebrachial cutaneous nerve of forearm

O: musculocutaneous nerve

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2
Q

Which 2 nerves have no branches in the arm?

A

median

ulnar

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3
Q

What is the articular capsule reinforced by and what are their names?

A

Collateral ligaments;

Radial collateral
ulnar collateral

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4
Q

This extends from the lateral epicondyle of the humerus to the radial notch of the ulna

A

radial collateral ligament

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5
Q

This surrounds the head of the radius?

A

anular ligament

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6
Q

this connects from the medial epicondyle of humerus to coronoid process & olecranon of ulna?

A

Ulnar collateral ligament

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7
Q

This is a thin, strong, fibrous membrane that joins the radius & ulna of forearm & serves as attachment for som deep forearm muscles

A

interosseous membrane

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8
Q

What type of muscles are contained in the anterior compartment of the forearm?

A

Flexors & pronators

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9
Q

What type of muscles are contained in the posterior compartment of the forearm?

A

extensors & supinators

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10
Q

The posterior & anterior compartments can be further classified into 2 groups?

A

superficial & deep

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11
Q

Where do the muscles of the superficial anterior compartment of the forearm originate & what is their function?

A

O: medial epicondyle of humerus

function: flexion

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12
Q

What are the muscles of the superficial anterior compartmet of the forearm?

A 
Flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis
PRONATOR TERES
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13
Q

What is the Insertion / Action / innervation of Flexor Carpi Radialis

A

Insert: radial anterior hand (base of 2nd/3rd metacarpals)
Act: flex & abducts hand @ wrist (radial deviation)
Inner: median nerve

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14
Q

The flexor carpi radialis causes flexion & abduction of the hand @ the wrist. what is this known as?

A

radial deviation

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15
Q

What is the insertion / action / inervation of Palmaris Longus?

A

Insert: flexor retinaculum & palmar aponeurosis
Act: flex hand @ wrist & tightens palmar aponeurosis
Inner: median nerve

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16
Q

What is the insertion / action / innervation of Flexor Carpi Ulnaris?

A

Insert: Ulnar anterior hand carpals (Pisiform, hook of hamate, & base of 5th metacarpal)
Act: Flex & adduct hand @ wrist (Ulnar deviation)
Inner: Ulnar nerve

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17
Q

What is the Origin / insertion / action / innervation of Flexor Digitorum superficialis?

A

O: medial epicondyle of humerus & upper radius & ulna
Insert: anterior surface of middle phalanges of fingers (2-5)
Act: flex fingers, flex hand @ wrist
Inner: Median nerve

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18
Q

What is the origin insertion action innervation of Pronator teres

A

O: medial epicondyle of humerus
Inser: radius
Act: pronates forearm @ elbow
Inner: median nerve

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19
Q

The muscles of the Deep Anterior (flexor) compartment of the forearm all insert @ and function as?

A

insert on the BASE of distal phalanges

fubction as a flexors

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20
Q

What are the muscles of the deep anterior compartment of the forearm are?

A

Flexor Pollicis longus
Flexor digitorum profundus
pronator quadratus

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21
Q

What is the origin / insertion / action / innervation of flexor pollicis longus?

A

O: radius & interosseous membrane
Insert: disital phalanx of thumb
Act: flew distal phalanx of thumb
Inner: median nerve

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22
Q

What is the origin / insertion / action / innervation of Flexor Digitorum Profundus?

A

O: Ulna & Interosseous membrane
Insert: anterior surface of digits 2-5 distal phalanx
Act: flex fingers @ distal phalanx & assists w/ flexion of hand
inner: median & ulnar nerve

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23
Q

What is the difference in insertion sites of flexor digitorum Superficialis & profundus?

A

FD Superficialis: inserts @ anterior surface of middle phalanges

FD Profundus inserts @ anterior surface of distal phalanges

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24
Q

When conducting a test of the flexion of interphalangeal joint this is assessing?

A

function of flexor digitorum profundus

&/or

median nerve which innervates both FDP & FDS

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25
Q

What is characterized by catching, snapping, or locking of involved finger flexor tendon, associated with dysfunction & pain?

A

Stenosing tenosynovitis “Trigger Finger”

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26
Q

What are the muscle, in order from lateral to medial, of the superficial posterior (extensor) compartment?

A 
Brachioradialis
Extensor Carpi radialis longus
Extensor Carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor Carpi ulnaris
27
Q

Which muscles of the superficial poterior compartment originate on the more distal portion of humerus & innervated by radial nerve?

A

Brachioradialis

Extensor Carpi radialis longus

28
Q

Which muscles of the superficial poterior compartment originate on epicondyle of humerus & innervated by deep radial nerve?

A

Extensor Carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor Carpi ulnaris

29
Q

What is the origin / insertion / action/ innervation of brachioradialis?

A

O: Humerus
Insert: Radius near styloid process
Act: flex forearm @ elbow Supinates / Pronates forearm back to neutral
Inner: radial nerve

30
Q

What is the origin / insertion/ action / innervation of extensor carpi radialis longus?

A

O: distal humerus
Insert: radial posterior hand base of 2nd metacarpal
Act: extends & abducts hand @ wrist ( radial deviation)
Inner: radial nerve

31
Q

What is the origin / insertion/ action / innervation of extensor carpi radialis brevis?

A

O: lateral epicondyle of humerus
Insert: radial posterior hand base of 3rd metacarpal
Act: extends & abducts hand @ wrist (radial deviation)
Inner: deep radial nerve

32
Q

What is the Origin / insertion / action / innervation of extensor digitorum?

A

O: lateral epicondyle of humerus
insert: phalanges of digits of medial 4 digits
Act: extend digits 2-4
Inner: Deep radial nerve

33
Q

What is the Origin / insertion / action / innervation of extensor digiti minimi?

A

O: lateral epichondyle of humerus
Insert: phalanx of little finger
Act: extends 5th digit
Inner: deep radial nerve

34
Q

What is the origin / insertion/ action / innervation of extensor carpi ulnaris?

A

O: lateral epicondyle of humerus
Insert: ulnar posterior hand base of 5th metacarpal
Act: extends & adducts hand @ wrist (Ulnar deviation)
Inner: deep radial nerve

35
Q

What muscles make up the deep posterior compartment of the forarm?

A 
Supinator
Abductor pollicis longus
Extensor Pollicis longus
Extensor Pollicis brevis
Extensor indicis
36
Q

What is the origin / insertion/ action / innervation of Abductor pollicis longus?

A

O: posterior radius & ulna
Inser: Base of thum @ 1st metacarpal
Act: Abducts & extends thumb
Inner: deep radial nerve

37
Q

What is the origin / insertion/ action / innervation of Extensor Pollicis brevis?

A

O: posterior radius & interosseous membrane
Insert: proximal phalanx of thumb
Act: extends thumb
Inner: deep radial nerve

38
Q

What is the origin / insertion/ action / innervation of Extensor Pollicis Longus?

A

O: Posterior Ulna & IM
Insert: distal phalanx of thumb
Act: extends thumb
Inner: deep radial nerve

39
Q

What is the origin / insertion/ action / innervation of Extensor indicis?

A

O: ulna & IM
Insert: Index
Act: extends 2nd digit
Inner: deep radial nerve

40
Q

Rotating the hand medially so the palm faces posteriorly is what and is a function what nerve?

A

pronation

median nerve

41
Q

rotating the hand laterally so the hand faces anteriorly is what & a function of what nerve?

A

Supination

musculocutaneous & radial nerves

42
Q

Which muscle pronates & supinates back to neutral?

A

Brachioradialis

43
Q

Because Pronators move the radius their insertion and origins are?

A

Insertion: radius

Origin: ulna

44
Q

What are the pronators of the forearm?

A

Pronator teres
Pronator quadratus
Brachioradialis

45
Q

What is the origin insertion action and innervation of pronator teres?

A

O: medial epicondyle of humerus
Insert: radius
Act: pronates forearm @ elbow
Inner: median nerve

46
Q

What is the origin insertion action and innervation of pronator quadratus?

A

O: Ulnar (distal shaft)
Insert: radius (distal shaft)
Act: pronates forearm @ radioulnar joint
inner: median nerve

47
Q

What are the Supination muscles?

A

Supinator muscle
biceps brachii
brachioradialis

48
Q

What is the origin insertion action and innervation of Supinator muscle?

A

O; Humerus @ lateral epicondyle & ulna proximal portion
Insert: proximal radius
Action supinates forearm
Inner: deep radial

49
Q

Where does the brachial artery end and what does it divide into?

A

ends @ inferior part of cubital fossa

ulnar & radial arteries

50
Q

What are the superficial veins of the forearm?

A

Cephalic
basilic
median antebrachial

51
Q

Assessing the radial pulse is to compress it against the radius between which 2 tendons

A

flexor carpi radialis &

abductor pollicis longus

52
Q

This is a transverse band that is formed from the antebrachial facia thicking posteriorly over distal ends of radius & ulna is known as?

A

Retinacula

53
Q

What does the retinacula do?

A

retains extensor tendons in position & prevents bowstringing

54
Q

These 2 anterior structures of the wrist are also formed by a thickening of the antebrachial fascia

A

Palmar carpal ligament

flexor retinaculum (AKA transverse carpal ligament)

55
Q

The flexor retinaculum streches from where to where?

A

From scaphoid & trapezium bones on radial side to hamate & pisiform bones on ulnar side

56
Q

What stuctre forms the carpal tunnel?

A

The carpals and the flexor retinaculum

57
Q

What lies between the the palmar carpal ligament & flexor retinaculum?

A

Tendon of Palmaris longus muscle & ulnar nerve & artery

58
Q

What tendon lies in the Y-shaped split of the flexor retinaculum?

A

tendon of flexor carpu radialis

59
Q

The tendons of what muscles and what nerve travels through the carpal tunnel

A

Tendons:
Flexor Pollicis longus, flexor digitorum sperficialis, & flexor digitorum profundus

Median Nerve

60
Q

What is the most superficial structure of the hand and what is it an extension of?

A

Palmar aponeurosis

extension of the tendon of the palmaris longus

61
Q

What are the intrinsic muscles of the hand?

A 
Thenar muscles
hypothenar muscles
adductor muscle
lumbrical muscles
interosseus muscles
62
Q

What muscle compartment controls the thumb & what are the muscles?

A

Thenar compartment;

abductor pollicis brevis
flexor pollicis brevis
opponens pollicis

63
Q

Where is the thenar eminence locates

A

lateral surface of the palm

64
Q

what nerve supplies the thenar compartment?

A

the motor branch of the median nerve (AKA recurrent branch)

IPAP A&P 1 Upper Limbs (5 decks)

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