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Clinical Anatomy II > Arthrology: ligaments > Flashcards

Arthrology: ligaments Flashcards

(97 cards)

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1
Q

coracoclavicular function

A

stabilizes AC joint
limits medial displacement, protraction, and elevation of clavicle on scapula

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2
Q

trapezoid ligament attachment

A

coracoid process to trapezoid line of clavicle

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3
Q

conoid ligament attachment

A

coracoid process to conoid tubercle of clavicle

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4
Q

acromioclavicular ligament function

A

stabilizes AC joint

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5
Q

acromioclavicular ligament attachments

A

superior aspect of acromial end of clavicle to adjacent acromion

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6
Q

coracoacromial ligament function

A

prevents superior displacement of humeral head by forming coracoacromial arch

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7
Q

coracoacromial ligament attachment

A

lateral border of coracoid process to acromion adjacent to clavicular articulation

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8
Q

coracohumeral ligament function

A

reinforces superoanterior aspect of GH joint capsule
resists inferior glide of humerus on glenoid at 0° abduction

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9
Q

coracohumeral ligament attachments

A

base of coracoid process to anterior aspect of greater tubercle

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10
Q

costoclavicular ligament function

A

stabilizes SC joint
limits elevation of clavicle

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11
Q

costoclavicular ligament attachments

A

superior aspect of first rib cartilage to undersurface of clavicle

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12
Q

glenoid capsule attachment

A

circumference of glenoid cavity to anatomical neck of humerus

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13
Q

GH superior ligament function

A

resists inferior glide of humerus at 0° abduction
resists ER at 0° and 45° abduction

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14
Q

GH middle ligament function

A

resists anterior glide of humerus on glenoid
primary restraint against ER at 45° abduction

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15
Q

GH inferior ligament anterior band function

A

primary restraint against ER at 90° abduction
resists against IR at 45° and 90° abduction
resists inferior glide of humerus on glenoid fossa at 90° abduction

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16
Q

GH inferior ligament posterior band function

A

resists against shoulder IR at all angles of abduction (0, 45, 90°)
resists inferior glide of humerus on glenoid fossa at 90° abduction

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17
Q

GH ligament attachment

A

upper part of medial margin of glenoid cavity to lesser tubercle and anatomical neck of humerus

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18
Q

restraints to shoulder IR 0° abduction

A

posterior band GH inferior ligament

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19
Q

restraints to shoulder IR 45° abduction

A

anterior and posterior band IGHLC

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20
Q

restraints to shoulder IR 90° abduction

A

anterior and posterior band IGHLC

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21
Q

restraints to shoulder ER 0° abduction

A

subscapularis (primary)
SGHL

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22
Q

restraints to shoulder ER 45° abduction

A

SGHL
MGHL

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23
Q

restraints to shoulder ER 90° abduction

A

anterior band IGHLC

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24
Q

restraints to shoulder inferior glide 0° abduction

A

SGHL
coracohumeral ligament

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25
restraints to shoulder inferior glide 90° abduction
IGHLC
26
ulnar collateral ligament function
resists excessive cubital valgus
27
ulnar collateral ligament attachment for anterior and posterior band
medial epicondyle humerus to coronoid process and olecranon
28
ulnar collateral ligament attachment of transverse band
originates and inserts on ulna
29
ulnar collateral ligament anterior band function
taut at terminal extension primary restraint against valgus between 20-130° secondary restraint at end range flexion beyond 120°
30
ulnar collateral ligament posterior band function
taut at >55° elbow flexion secondary restraint against valgus at lesser degrees of flexion equal co-restraint with anterior band at terminal flexion
31
ulnar collateral ligament transverse band
deepns socket in trochlea; no role in elbow stability
32
radial collateral ligament attachment
lateral epicondyle humerus to annular ligament
33
radial collateral ligament function
resists excessive cubital varus consistent tension throughout arc of flexion primary restraint against posterolateral instability; reduces risk of radial sublux
34
annular ligament attachment
anterior to posterior margin of radial notch, surrounding radial head
35
annular ligament function (3)
#1 provides 80% articular surface of humeroradial joint #2 stabilizes radial head during rotation allowing for pronation and supination #3 stabilizes proximal radioulnar joint
36
interosseous membrane of forearm function
stability between radius and ulna demarcates anterior versus posterior structures of forearm
37
interosseous membrane attachment
interosseous border of radius to interosseous border of ulna
38
transverse carpal ligament function transverse carpal = flexor retinaculum of wrist
prevents bowstringing of flexor tendons (flexor pollicis longus, felxor digitorum superficialis, flexor digitorum profundus) maintains carpal arch protects median nerve
39
transverse carpal ligament attachment
pisiform and hook of hamate (ulnar side) to scaphoid and trapezium (radial side)
40
radiocarpal ligament attachment
dorsal and palmar surface of distal radius to first two rows of carpal bones
41
radiocarpal ligament function
stabilizes carpal bones on radius RC dorsal ligs restrain wrist flexion RC palmar ligs restrain wrist extension
42
radial collateral ligament of wrist function
restrain ulnar deviation
43
radial collateral ligament of wrist attachment
radial styloid process to scaphoid
44
ulnar collateral ligament of wrist function
restrain radial deviation
45
ulnar collateral ligament of wrist attachment
ulnar styloid process to triquetrum
46
collateral ligaments of MCP joints attachment
head of metacarpals to base of adjacent proximal phalanx oblique orientation
47
collateral ligaments of MCP joints function
stabilize MCP joints resists abduction and adduction (along with MC head) max tension at 70° flexion
48
MCP palmar (volar) plates ligament function
for extension, increases contact surface with MC head for flexion, prevents tension pinching
49
TFCC function (4)
major stabilizer of distal radioulnar joint (binds ulna and radius) forms concavity/dual articular surface on ulnar side of wrist separates radioulnar from radiocarpal joint cushions ulnar sided force transmission
50
TFCC components
1. biconcave fibrocartilage disc 2. palmar ulnocarpal ligament 3. ulnar collateral ligament
51
sacrotuberous ligament attachment
posterior iliac spine and lateral margin sacrum to ischial tuberosity
52
sacrospinous ligament attachment
ischial spine to lateral margin of sacrum
53
fibrous joint capsule of FA attachment
margin of acetabulum to the neck, intertrochanteric line, and intertrochanteric crest of femur
54
iliofemoral ligament attachment
AIIS to intertrochanteric line of femur
55
iliofemoral ligament function
limits hip extension, ER, IR holds body weight balanced over femoral heads
56
pubofemoral ligament attachment
iliopubic eminence and superior pubic ramus to fibrous GH capsule
57
pubofemoral ligament function
restricts hip abduction, extension, ER
58
ischiofemoral ligament attachment
ischium posterior to greater trochanter of femur and iliofemoral ligament
59
ischiofemoral ligament function
restricts hip extension, IR, and adduction
60
transverse acetabular ligament attachment
interconnects margins of acetabular notch; closes off lunate surface of acetabulum
61
fibrous capsule of knee attachment
margins of femoral condyle to margins of tibial condyles
62
tibial collateral MCL attachments
medial epicondyle of femur to medial condyle and shaft of tibia (deep to sartorius and pes anserine) consists of superficial and deep layers; closely applied to joint capsule and medial meniscus
63
tibial collateral MCL function
stabilizes medial aspect of knee resists valgus force secondary restraint to IR of tibia on femur
64
fibular collateral LCL attachment
lateral epicondyle of femur to head of fibula
65
fibular collateral LCL function
stabilizes lateral aspect of knee resists varus force secondary restraint to ER of tibia on femur
66
anterior cruciate ligament ACL attachment
medial part of anterior intercondylar area of tibia to posteromedial aspect of lateral femoral condyle
67
anterior cruciate ligament ACL function
prevents anterior displacement of tibia on femur/posterior displacement of femur on tibia prevents knee hyperextension *limits rotation of tibia on femur*
68
posterior cruciate ligament PCL attachment
posterior intercondylar area of tibia to lateral surface of medial condyle of femur
69
posterior cruciate ligament function
prevents posterior displacement of tibia on femur/anterior displacement of femur on tibia
70
medial meniscus attachment
anterior and posterior regions of intercondylar area of tibia and fibrous capsule of MCL C-shaped larger attached to MCL and semimembranosus (via posterior oblique ligament)
71
lateral meniscus attachment
anterior and posterior regions of intercondylar area of tibia o-shaped smaller
72
anterolateral ligament ALL attachment
lateral femoral epicondyle to proximal tibia
73
anterolateral ligament ALL function
stabilizer for IR supports ACL to a degree
74
oblique popliteal and arcuate popliteal ligaments
posterior knee ligaments damaged with hyperextension and posterolateral injuries typically heals on own
75
mensci function
absorb shock decrease friction increase contact area designed to distribute forces (hoop stress) blood supply greatest at peripheral portion
76
patellar ligament attachment
apex of patella to tibial tuberosity
77
patellar ligament function
resists knee flexion *serves as component of extensor mechanism for quad mm to extend tibia on femur*
78
medial patellofemoral ligament attachment
proximal 50% of medial patella to medial epicondyle of femur
79
medial patellofemoral ligament function
restrains against patellar lateral displacement stabilizes patella
80
crural interosseous membrane attachment
interosseous border of tibia to interosseous border of fibula
81
crural interosseous membrane function
sabilizes distal tibiofibular joint
82
talocrural fibrous capsule attachment
borders of articular surfaces of tibia and malleoli to margins of trochlear surface of talus
83
deltoid collateral ligament attachments
medial malleolus to talus, navicular, and sustentaculum tali of calcaneus
84
deltoid collateral ligament function
stabilize joint and resist forced eversion of talus, calcaneus, and navicular
85
deltoid ligament components
1. anterior tibiotalar ligament 2. tibiocalcaneal ligament 3. tibionavicular ligament 4. posterior tibiotalar ligament
86
anterior inferior tibiofibular ligament function
stabilizes distal tibiofibular joint
87
posterior inferior tibiofibular ligament function
stabilizes sydesmosis between tibia and fibula
88
anterior talofibular ATFL attachment
anterior lateral malleolus of fibula to neck of talus
89
posterior talofibular PTFL attachment
malleolar fossa of fibula to lateral tubercle of talus
90
anterior talofibular ATFL function
resists talocrural inversion when in PF resists anterior translation of talus
91
posterior talofibular ATFL function
resists talocrural inversion for neutral and DF
92
calcaneofibular CFL attachment
tip of lateral malleolus to lateral surface of calcaneus
93
calcaneofibular CFL function
resists calcaneal/subtalar inversion
94
plantar calcaneonavicular ligament (spring ligament) attachment
anterior margin of sustentaculum tali to plantar surface of navicular
95
plantar calcaneonavicular ligament (spring ligament) function
supports medial longitudinal arch of foot if ruptured = loss of medial long arch, inferior migration of talus
96
long plantar ligament attachment
plantar surface of calcaneus and cuboid to plantar surface of MT base 3-5
97
plantar calcaneocuboid (short plantar) ligament attachment
calcaneus to plantar surface of cuboid deep to long plantar

Clinical Anatomy II (8 decks)

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