STEEPLECHASE - MUSCULOSKELETAL Flashcards

1
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Brachygnathia

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2
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Complete palatoschisis

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3
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Prognathia

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4
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Pectus excavatum

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5
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Kyphosis

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6
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Scoliosis

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7
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Block vertebrae

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8
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Butterfly/hemivertebrae

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9
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Lordosis

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10
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Manatee - confined in small aquarium, developed severe scoliosis (lateral deviation)

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11
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Spina bifida in dog

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12
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Mircomelia

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13
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Peromelia

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14
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Notomelia

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15
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Hemimelia

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16
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Amelia

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17
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Polydactyly

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18
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Syndactyly

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19
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Ectrodactyly

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20
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Dactylomegaly

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21
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Adactyly

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22
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23
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Osteogenesis impefecta - lateral deviation in joints, collagen I mutation

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24
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Osteogenesis imperfecta

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25
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26
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Osteopetrosis

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27
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28
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Congenital cortical hyperostosis

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29
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Congenital hyperostosis

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30
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‘Lion jaw’ craniomandibular osteopathy

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31
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Craniomandibular osteopathy ‘Lion jaw’

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32
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Chondrodysplasia

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33
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34
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Disproportionate dwarfism - Grey alpine calf w/ Ellis van Creveld syndrome (chondrodysplasia)

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35
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Manganese deficiency, not congenital, acquired/nutritional deficiency (chondrodysplasia)

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36
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Texel lamb - disproportionate dwarfism, shortened limbs and wide base (chondrodysplasia)

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37
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(Chondrodysplasia)

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38
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Osteochondrosis

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39
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Osteochondrosis latens - well-demarcated area of necrosis of cartilage

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40
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Osteochondrosis manifesta - arrows = associated with areas of foci of necrosis - areas of retained cartilage = hypertrophic chondrocytes

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41
Q
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Osteochondrosis dissecans - arrow pointing to ‘joint mice’

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42
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Vertebral myelopathy

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43
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Dynamic vertebral myelopathy - flexion

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44
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45
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Osteoporosis

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46
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Rickets and osteomalacia

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47
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48
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Head brachygnathia superior

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49
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Dental dysplasia, with small pink-grey barely erupted teeth in a two-week old Holstein calf with osteogenesis imperfecta (right), left = normal calf

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50
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51
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Osteopetrosis

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52
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Cervical vertebral myelopathy “Wobbler syndrome”

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53
Q
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Cervical vertebral malformation-malarticulation in a horse. Flexion of the cervical vertebrae results in stenosis of the spinal canal (asterisk). Flaring of caudal epiphysis (arrowhead), can also contribute to spinal compression

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54
Q
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Cervical vertebral malformation-matriculation in a horse, Osteochondrosis of the articular facet joints can contribute to the intervertebral joint instability

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55
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Osteoporosis

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56
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Osteoporosis

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57
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Osteoporosis

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58
Q
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Osteoporosis

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59
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Costochondral junction, rickets

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60
Q
A

Pig, rib, dysplasia

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61
Q
A

Fibrous osteodystrophy, “Rubber jaw”

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62
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A

Fibrous osteodystrophy

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63
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Fibrous osteodystrophy

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64
Q
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Fibrous osteodystrophy

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65
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66
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67
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68
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69
Q
A

Congenital porphyria

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70
Q
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Porphyria

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71
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A

Erythropoietic porphyria

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72
Q
A

Exostosis

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73
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A

Enostosis

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74
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Osteophyte

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75
Q
A

Enthesophyte

76
Q
A

Hyperostosis

77
Q
A

Hypertrophic osteopathy

78
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A

Bone, hypertrophic pulmonary osteoarthropathy

79
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A
80
Q
A

Osteochondromatosis feline leucopenia

81
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A
82
Q
A

Subchondral cyst

83
Q
A

Compression force

84
Q
A

Avulsion/distraction forces

85
Q
A

Shear forces @ mid diaphysis

86
Q
A

Bending forces - two forces opposed to mid-diaphysis

87
Q
A

Torsion force - twisting on longitudinal axis

88
Q
A

Compound FX

89
Q
A

Transverse FX - perpendicular to long axis of bone

90
Q
A

Linear FX - parallel to long axis

91
Q
A

Oblique non-displaced - tangential (along), remain relatively aligned

92
Q
A

Oblique displaced FX

93
Q
A

Spiral 3D FX

94
Q
A

Greenstick FX - cortical bone, minimal involvement of underlying trabeculae bone

95
Q
A

Comminuted FX - severe forces (shatter FX fragments)

96
Q
A
97
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A
98
Q
A

Direct or contact healing

99
Q
A

Small gap healing

100
Q
A
101
Q
A

Thorax gunshot perforations

102
Q
A

FX fixation devices - wires, screws, plates + intramedullary nails

103
Q
A

Epiphysiolysis - dog

104
Q
A

Valgus deformity - deviation of limb laterally, damage on lateral aspect

105
Q
A

Varus deformity - deviation of limb medially, damage occurred on medial aspect of physis

106
Q
A

Sesamoid FX

107
Q
A

Sesamoid FX

108
Q
A
109
Q
A

Chronic pyogranulomatous osteomyelitis in cow - Actinomyces bovis = lumpy jaw

110
Q
A

Sequestrum in a foal with Salmonella osteomyelitis

111
Q
A

Suppurative vertebral osteomyelitis in pig, usually Streptococcus suis

112
Q
A

Highly suggestive histologic feature = Splendore-Hoeppli phenomenon (intense eosinophilic material)

113
Q
A
114
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A
115
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116
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A
117
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A
118
Q
A

Bone osteomyelitis physis

119
Q
A

Bone abscess

120
Q
A

Large dog breeds

121
Q
A

Panosteitis in a German Shepherd dog. Patchy foci of increased bone density within the medullary cavity (arrows)

122
Q
A

Panosteitis

123
Q
A
124
Q
A

Aseptic necrosis

125
Q
A

Cachexia (atrophy)

126
Q
A

Muscle atrophy

127
Q
A

Hyperadrenocorticism (Cushing’s) - ‘pot belly’ due to abdominal muscle atrophy

128
Q
A

Left superficial cricoarytenoideus dorsalis muscle in horse - denervation atrophy

129
Q
A

Compensatory response to injury

130
Q
A

Vacuolar change

131
Q
A

Internal nuclei

132
Q
A

Whorled and ring fibres

133
Q
A
134
Q
A

Distinct groups of atrophic and hypertrophic fibres in child w/ spinal muscular atrophy, hypertrophic fibres up to 100 micrometres

135
Q
A

Atrophy restricted to darkly stained type 2 fibres induced by steroid therapy

136
Q
A

ATPase staining following preincubation at pH 4.3 showing atrophy selectively affecting darkly stained type 1 fibres in a case of myotubular myopathy + hypertrophy of pale type 2 fibres

137
Q
A

Internal nuclei (arrow) within fibres of varying size, Duchenne muscular dystrophy

138
Q
A

Chain of internal nuclei in longitudinally sectioned fibre 48 micrometres in diameter

139
Q
A

An area of multiple splitting = small cluster of fibres

140
Q
A

Hypertrophic fibres w/ multiple internal splits - Duchenne muscular dystrophy, small arrow = nuclei along splits, variation in fibre size due to branching of fibres (large arrow)

141
Q
A

Whorled fibre w/ twisted myofibrils

142
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A
143
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A
144
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A
145
Q
A

Segmental necrosis

146
Q
A

Segmental necrosis

147
Q
A

Segmental necrosis

148
Q
A

Muscle necrosis and regeneration

149
Q
A

Muscle regeneration - myotubule grows + differentiates + develops sarcomeres (striation) and nuclei move to the periphery (requires intact basal lamina)

150
Q
A
151
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A
152
Q
A

Arthrogryposis - failure of innervation of muscles

153
Q
A

Hypermuscular Belgian blue bull

154
Q
A

Splay leg in pigs, myofibrillar hypoplasia

155
Q
A
156
Q
A

Muscle dystrophy

157
Q
A

Myotonia (channelopathies) - inability of skeletal muscle to relax

158
Q
A
159
Q
A

Splay leg syndrome

160
Q
A

Muscle - lumbar porcine stress syndrome, malignant hyperthermia

161
Q
A
162
Q
A
163
Q
A

Degenerative myopathy - disturbance of circulation -> saddle thrombus

164
Q
A

Degenerative myopathy - disturbance of circulation

165
Q
A
166
Q
A

Ischaemic muscle necrosis - cow

167
Q
A

Rear leg muscle - coagulative necrosis of cow

168
Q
A
169
Q
A

White muscle disease, selenium and vit E deficiency

170
Q
A

White muscle selenium deficiency

171
Q
A

Toxic myopathy - monophasic/polyphasic necrosis

172
Q
A
173
Q
A

Myodegeneration - cassia toxicity

174
Q
A

Exertional myopathy

175
Q
A

Exertional myopathy or ‘capture myopathy’ in wild animals

176
Q
A

Traumatic diaphragmatic hernia

177
Q
A

Myositis ossificans

178
Q
A

Suppurative myositis

179
Q
A

Inflammatory diseases

180
Q
A

Clostridium chauvoei, clostridial myositis

181
Q
A

Pyogenic bacteria, localised suppurative + necrotising myositis - injection site in a cow

182
Q
A

Inflammatory disease

183
Q
A
184
Q
A

FMDV - pale multifocal, irregular, linear stripping (piglet)

185
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A
186
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A