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Gross > Joints Of The Hand > Flashcards

Joints Of The Hand Flashcards

0
Q

radiocarpal joint articulation

A

distal end of radius and articular disc with proximal row of carpal bones (except pisiform)

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1
Q

radiocarpal joint type

A

condyloid synovial

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2
Q

radiocarpal joint joint capsule

A

fibrous layer of joint capsule surrounds joint and attaches to distal ends of radius and ulna and proximal row of carpal bones
lined by synovial membrane

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3
Q

radiocarpal joint ligaments

A

anterior and posterior ligaments strengthen fibrous capsule
ulnar collateral ligament attaches to styloid process of ulna and triquetram
radial collateral ligament attaches to styloid process of radius and scaphoid

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4
Q

radiocarpal joint movements

A

flexion/ extension
abduction/adduction
circumduction

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5
Q

nerve supply of radiocarpal joint

A

anterior interosseous branch of median nerve
posterior interosseous branch of radial nerve
dorsal and deep branches of ulnar nerve

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6
Q

carpal (intercarpal) joint type

A

plane synovial joint

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7
Q

carpal (intercarpal)joint articulation

A

between carpal bones of proximal row; joints between carpal bones of distal row
midcarpal joint: synovial joint between proximal and distal rows of carpal bones
pisiform joint:synovial joint between pisiform and triquetram

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8
Q

carpal (intercarpal) joint joint capsule

A

fibrous layer of joint capsule surrounds joints
lined by synovial membrane
pisiform joint is separate from other carpal joints

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9
Q

carpal joint ligaments

A

carpal bones united by anterior, posterior, and interosseous ligaments

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10
Q

carpal joint movements

A

small amount of gliding movement possible

flexion and abduction of hand occur at midcarpal joint

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11
Q

carpal joint nerve supply

A

anterior interosseous branch of median nerve
posterior interosseous branch of radial nerve
dorsal and deep branches of ulnar nerve

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12
Q

carpometacarpal(CMC) and intermetacarpal (IM) joint type

A

plane synovial joints

except for CMC joint of thumb: saddle synovial joint

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13
Q

carpometacarpal and intermetacarpal joint articulation

A

carpals and metacarpals with each other

CMC joint of thumb between trapezium and base of 1st metacarpal

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14
Q

carpometacarpal and intermetacarpal joint capsule

A

fibrous layer of joint capsule surrounds joints

lined on internal surface by synovial membrane

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15
Q

carpometacarpal and intermetacarpal joints ligaments

A

bones united by anterior, posterior, and interosseous ligaments

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16
Q

carpometacarpal and intermetacarpal joint movements

A

flexion extension and abduction adduction of CMC joint of 1st digit
almost no movement of 2nd and 3rd digits
4th digit slightly mobile
5th digit very mobile

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17
Q

carpometacarpal and intermetacarpal joint nerve supply

A

anterior interosseous branch of median nerve
posterior interosseous branch of radial nerve
dorsal and deep branches of ulnar nerve

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18
Q

limiting structures of flexion at wrist

A

ligaments: posterior radiocarpal and posterior part of joint capsule

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19
Q

structures limiting extension at wrist

A

ligaments:anterior radiocarpal and anterior part of joint capsule
bony apposition between radius and carpal bones

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20
Q

structures limiting abduction at wrist

A

ligaments: ulnar collateral ligament and medialpart of joint capsule
bony apposition between styloid process of radius and scaphoid

21
Q

structures limiting adduction at wrist

A

ligaments: radial collateral and lateral part of joint capsule

22
Q

metacarpophalangeal joint type

A

condyloid synovial

23
Q

metacarpophalangeal joint articulation

A

heads of metacarpals with base of proximal phalanges

24
Q

metacarpophalangeal joint capsule

A

fibrous layer of joint capsule encloses each joint

lined on internal surface by synovial membrane

25
Q

metacarpophalangeal joint ligaments

A

strong palmar ligaments attached to phalanges and metacarpals
deep transverse metacarpal ligaments unite 2nd to 5th joints holding heads of metacarpals together
collateral ligaments pass from heads of metacarpals to bases of phalanges

26
Q

metacarpophalangeal joint movements

A

flexion extension, abduction adduction, circumduction of 2nd to 5th digits
flexion extension of thumb occurs but abduction, adduction is limited

27
Q

metacarpophalangeal joint nerve supply

A

digital nerves arising from ulnar and median nerves

28
Q

interphalangeal (IP) joint type

A

hinge synovial joints

29
Q

interphalangeal joint articulation

A

heads of phalanges with bases of more distally located phalanges

30
Q

interphalangeal joint capsule

A

fibrous capsule encloses each joint

lined on internal surface by synovial membrane

31
Q

interphalangeal joint ligaments

A

collateral ligaments pass from heads of proximmal to base of distal
strong palmar ligaments (plates)

32
Q

interphalangeal joint movements

A

flexion extension

33
Q

interphalangeal joint nerve supply

A

digital nerves arising from ulnar and median nerves

34
Q

limiting structures of flexion at CMC of thumb

A

ligaments: posterior part of joint capsule
muscles: extensor and abductor pollicis brevis
apposition between thenar eminence and palm

35
Q

limiting structures of flexion at MCP of digits 1-5

A

ligaments: collateral, posterior part of joint capsule

apposition between proximal phalanx and metacarpal

36
Q

limiting structures of flexion of PIP digits 2-5

A

ligaments: collateral, posterior part of joint capsule

apposition between middle and proximal phalanges

37
Q

limiting structures of flexion of DIP of digits 2-5

A

ligaments: collateral, oblique retinacular and posterior part of joint capsule

38
Q

limiting structures of flexion of IP of thumb

A

ligaments:collateral and posterior part of joint capsule

apposition between distal and proximal phalanges

39
Q

structures limiting extension of CMC of thymb

A

ligments: anterior part of joint capsule
muscles: 1st dorsal interosseous, flexor pollicis brevis

40
Q

structures limiting extension of MCP of digits 1-5

A

ligaments: anterior part of joint capsule, palmar ligament

41
Q

structures limiting extension at PIP and DIP of digits 2-5

A

ligaments: anterior part of joint capsule, palmar ligament

42
Q

structures limiting extension at IP of thumb

A

ligaments: anterior part of joint capsule, palmar ligament

43
Q

structures limiting abduction at CMC and MCP of thumb

A

muscles:1st dorsal interosseous, adductor pollicis

fascia and skin of 1st web space

44
Q

structures limiting abduction at MCP of digits 2-5

A

ligaments: collateral

fascia and skin of web spaces

45
Q

structures limiting adduction at CMC and MCP of thymb

A

apposition between thumb and index finger

46
Q

structures limiting adduction at MCP of digits 2-5

A

apposition between adjacent digits

47
Q

anterior dislocation of lunate:

A

fall on dorsiflexed wrist.lunate pushed out of place in floor of carpal tunnel toward palmar surface of wrist. can lead to carpal tunnel syndrome. because of poor blood supply, avascular necrosis

48
Q

dejenerative joint disease of wrist

A

surgical fusion of carpals or arthrodesis may be necessary

49
Q

fracture-separation of distal radial epiphysis

A

common in children because of frequent falls where force transmitted from hand to radius
in lateral radiograph of wrist, dorsal displacement obvious
displaces epiphyseal plate could be mistaken for fracture and separation could be misinterpretated as displaced piece of fractured bone
knowledge of age and growth plate impt

Gross (31 decks)

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