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Anatomy: first med > radioulnar, wrist and hand joints > Flashcards

radioulnar, wrist and hand joints Flashcards

1
Q

what type of joint is proximal radioulnar joint

A

pivot type of synovial joint

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2
Q

articulates with head of radius in PRU joint

A

articulates with radial notch of ulna in PRU joint

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3
Q

annular ligament forms?

A

osteo-ligamentous ring

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4
Q

blood supply to proximal radioulnar joint

A

anterior and posterior interosseus arteries

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5
Q

proximal radioulnar joint innervated by

A

musculocutaneous, median, radial and ulnar nerves

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6
Q

what type of joint is distal radioulnar joint

A

pivot type synovial joint

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7
Q

articulates with distal head of ulna in DRU joint

A

articulates with ulnar notch of radius in DRU joint

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8
Q

blood supply to distal radioulnar joint

A

anterior/posterior interosseus arteries

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9
Q

innervation of distal radioulnar joint

A

anterior/posterior interosseus nerves

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10
Q

when palm is supinated radius and ulna are

A

parallel

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11
Q

when palm is pronated radius and ulna are?

A

crossed over each other
form X shape

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12
Q

what bone stabilises the forearm

A

ulna

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13
Q

is ulna lateral or medial?

A

medial

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14
Q

which of ulna and radius pivot around which

A

radius pivots around ulna

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14
Q

is radius lateral or medial?

A

lateral

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15
Q

what joints move when rotating palm?

A

proximal and distal radioulnar joints

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16
Q

pronation/supination action at the elbow

A

superior articular surface of radial head spins on capitulum

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17
Q

pronation/supination action at PRU joint

A

radial head slides against radial notch of ulna and adjacent areas of the joint capsule and anular ligament

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18
Q

pronation/supination action at DRU joint

A

ulnar notch of radius slides anteriorly over convex surface of head of ulna

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19
Q

what holds radius and ulna together during supination/pronation at PRU joint?

A

anular ligament of the radius

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20
Q

what holds the lengths radius and ulna together during supination/pronation?

A

interosseus membrane

21
Q

what holds radius and ulna together during supination/pronation at DRU joint?

A

articular disc

22
Q

muscles used in supination

A

supinator and biceps brachii (most effective at supination when arm bent)

23
Q

muscles of pronation

A

pronator teres and pronator quadratus

24
Q

what carpal bones articulate with radius to form wrist joint?

A

scaphoid and lunate

25
Q

radiocarpal joint =

A

wrist joint =

26
Q

what strengthens capsule of wrist

A

ulnar and radial collateral ligaments

27
Q

ulnar deviation

28
Q

radial deviation

29
Q

what type of joint is the wrist?

A

ellipsoid synovial (condyloid)

30
Q

location of wrist

A
  • distal end of radius
  • articular disc at distal end of ulna
  • scaphoid and lunate
31
Q

what is the midcarpal joint

A

joint between proximal and distal rows of carpal bones

32
Q

carpal bones form?

A

carpal arch

33
Q

what fills the carpal arch

A

carpal tunnel

34
Q

carpal bones of medial side of carpal arch

A

pisiform and hamate

35
Q

carpal bones of lateral side of carpal arch

A

scaphoid and trapezium

36
Q

anterior wall of carpal tunnel

A

flexor retinaculum

37
Q

nerve passing down carpal tunnel

A

median nerve

38
Q

what is/causes carpal tunnel syndrome

A

entrapment of median nerve within carpal tunnel

39
Q

potential causes of carpal tunnel

A

overuse
swelling of tendons and tendon sheaths
cysts arising for carpal joints

40
Q

symptoms of carpal tunnel syndrome

A
  • numbness
  • tingling
  • wasting of thenar muscles
41
Q

therapy for carpal tunnel syndrome

A
  • splinting
  • anti-inflammatories
  • surgery
42
Q

carpometacarpal joints

A

articulation of carpal bones with base of metacarpals

43
Q

intermetacarpal joints

A

articulation between metacarpals

44
Q

metacarpophalangeal joints

A

articulations of heads of metacarpals with proximal phalanges

45
Q

metacarpal fracture

A

boxers/brawlers fracture

46
Q

carpometacarpal joint type

A

saddle joint

47
Q

metacarpophalangeal joint type

A

condylar/ellipsoid/ovoid

48
Q

reinforcement of joint capsule of MCP joint

A

palmar ligament and medial and lateral collateral ligaments

49
Q

what do deep transverse metacarpal ligaments do

A

connect the palmar ligaments together
restrict movement of bones relative to each other

50
Q

interphalangeal joint type

A

uniaxial hinge joints

51
Q

reinforcement of IP joints

A

medial and lateral collateral ligaments and palmar ligaments

Anatomy: first med (17 decks)

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