Ortho cs and Prosthe cs Combined Wri en Boards
exam With complete solu on | Updated RATED A+ |
2026
A. Knee extension
a complete lesion of the femoral nerve as it leaves the lumbar plexus affects what mo on?
A. knee extension
B. hip adduc on
c. hip extension
d. knee flexion
e. ankle plantarflexion
the femoral nerve
what is the largest nerve of the lumbar plexus?
Iliopsoas
what is the primary flexor of the hip?
common peroneal nerve
paraly c equinus during swing phase is o#en caused by injury to what nerve?
Equinus deformity
toe is in a down posi on, dorsiflexion limita on of the ankle
heel strike on one limb and a subsequent heel strike on the ipsilateral side
what is a cycle of gait defined as?
C. Line of progression
toe in or toe out is the rela onship of the long axis of the foot to the:
A. subtalar joint
B. ankle joint axis
C. line of progression
D. Knee axis
subtalar joint
,what joint do the mo ons of inversion and eversion occur primarily at?
talus, bia, fibula
what bones make up the talocrural joint?
dorsiflexion and plantar flexion
essen ally a hinge type joint
what mo on occurs in the talocrural joint?
resist over-eversion of the foot
what is the primary ac on of the medial ligament of the ankle?
resist over-inversion of the foot
what is the primary ac on of the lateral ligament of the ankle?
bialis anterior, extensor hallucis longus, extensor digitorum longus
what muscles produce dorsiflexion of the ankle?
gastrocnemius, soleus, plantaris and posterior bialis
what muscles produce plantarflexion of the ankle?
talus and calcaneus
what bones form the subtalar joint? (aka talocalcaneal joint)
talonavicular, calcaneocuboid
what joints make up the midtarsal joint?
the anterior talar head and the concavity on the navicular
what makes up the talonavicular joint?
the anterior facet of the calcaneus and the posterior cuboid
what makes up the calcaneocuboid joint?
midtarsal joints (talonavicular and calcaneocuboid)
what are the Chopart joints?
tarsometatarsal joints
what are the Lisfranc joints?
,1st metatarsal and medial cuneiform
what makes up the medial column of the tarsometatarsal joints?
2nd and 3rd metatarsal and intermediate and lateral cuneiforms
what makes up the middle column of the tarsometatarsal joints?
4th and 5th metatarsals and the cuboid
what makes up the lateral tarsometatarsal joints?
inversion and eversion, dorsiflexion an plantar flexion
what mo ons are produced at the subtalar joint?
inversion and eversion. flexion and extension
what mo ons are produced at the midtarsal joint?
flexion and extension, abduc on and adduc on
what mo ons are produced at the metatarsalphalangeal joints?
flexion and extension
what mo ons are produced at the IP joints?
D. shortened step length on contralateral side
a complete lesion of the bial nerve on one leg will result in what gait devia ons?
A. foot slap on ipsilateral side
B. gluteus medius limp on contralateral side
C. Shortened step length on ipsilateral side
D. shortened step length on contralateral side
(posterior lower leg muscles)
gastrocnemius, soleus, plantaris, popliteus, bialis posterior, flexor digitorum longus, flexor
hallucis longus
what muscles are innervated by the bial nerve?
cervical lateral flexion
what is the C3 myotome
shoulder eleva on
what is the C4 myotome
, shoulder abduc on
what is the C5 myotome
elbow flexion, wrist extension
what is the C6 myotome
elbow extension, wrist flexion
what is the C7 myotome
thumb extension, finger flexion
what is the C8 myotome
finger abduc on and adduc on
what is the T1 myotome
hip flexion
what is the L2 myotome
knee extension
what is the L3 myotome
ankle DF
what is the L4 myotome
great toe extension
what is the L5 myotome
PF, eversion, hip extension
what is the S1 myotome
knee flexion, PF
what is the S2 myotome
Scheuermann's Disease
a developmental disorder of the spine
abnormal growth of the thoracic spine
anterior por on of the thoracic vertebrae do not develop as fast as the posterior por on
resul ng in exaggerated kyphosis
exam With complete solu on | Updated RATED A+ |
2026
A. Knee extension
a complete lesion of the femoral nerve as it leaves the lumbar plexus affects what mo on?
A. knee extension
B. hip adduc on
c. hip extension
d. knee flexion
e. ankle plantarflexion
the femoral nerve
what is the largest nerve of the lumbar plexus?
Iliopsoas
what is the primary flexor of the hip?
common peroneal nerve
paraly c equinus during swing phase is o#en caused by injury to what nerve?
Equinus deformity
toe is in a down posi on, dorsiflexion limita on of the ankle
heel strike on one limb and a subsequent heel strike on the ipsilateral side
what is a cycle of gait defined as?
C. Line of progression
toe in or toe out is the rela onship of the long axis of the foot to the:
A. subtalar joint
B. ankle joint axis
C. line of progression
D. Knee axis
subtalar joint
,what joint do the mo ons of inversion and eversion occur primarily at?
talus, bia, fibula
what bones make up the talocrural joint?
dorsiflexion and plantar flexion
essen ally a hinge type joint
what mo on occurs in the talocrural joint?
resist over-eversion of the foot
what is the primary ac on of the medial ligament of the ankle?
resist over-inversion of the foot
what is the primary ac on of the lateral ligament of the ankle?
bialis anterior, extensor hallucis longus, extensor digitorum longus
what muscles produce dorsiflexion of the ankle?
gastrocnemius, soleus, plantaris and posterior bialis
what muscles produce plantarflexion of the ankle?
talus and calcaneus
what bones form the subtalar joint? (aka talocalcaneal joint)
talonavicular, calcaneocuboid
what joints make up the midtarsal joint?
the anterior talar head and the concavity on the navicular
what makes up the talonavicular joint?
the anterior facet of the calcaneus and the posterior cuboid
what makes up the calcaneocuboid joint?
midtarsal joints (talonavicular and calcaneocuboid)
what are the Chopart joints?
tarsometatarsal joints
what are the Lisfranc joints?
,1st metatarsal and medial cuneiform
what makes up the medial column of the tarsometatarsal joints?
2nd and 3rd metatarsal and intermediate and lateral cuneiforms
what makes up the middle column of the tarsometatarsal joints?
4th and 5th metatarsals and the cuboid
what makes up the lateral tarsometatarsal joints?
inversion and eversion, dorsiflexion an plantar flexion
what mo ons are produced at the subtalar joint?
inversion and eversion. flexion and extension
what mo ons are produced at the midtarsal joint?
flexion and extension, abduc on and adduc on
what mo ons are produced at the metatarsalphalangeal joints?
flexion and extension
what mo ons are produced at the IP joints?
D. shortened step length on contralateral side
a complete lesion of the bial nerve on one leg will result in what gait devia ons?
A. foot slap on ipsilateral side
B. gluteus medius limp on contralateral side
C. Shortened step length on ipsilateral side
D. shortened step length on contralateral side
(posterior lower leg muscles)
gastrocnemius, soleus, plantaris, popliteus, bialis posterior, flexor digitorum longus, flexor
hallucis longus
what muscles are innervated by the bial nerve?
cervical lateral flexion
what is the C3 myotome
shoulder eleva on
what is the C4 myotome
, shoulder abduc on
what is the C5 myotome
elbow flexion, wrist extension
what is the C6 myotome
elbow extension, wrist flexion
what is the C7 myotome
thumb extension, finger flexion
what is the C8 myotome
finger abduc on and adduc on
what is the T1 myotome
hip flexion
what is the L2 myotome
knee extension
what is the L3 myotome
ankle DF
what is the L4 myotome
great toe extension
what is the L5 myotome
PF, eversion, hip extension
what is the S1 myotome
knee flexion, PF
what is the S2 myotome
Scheuermann's Disease
a developmental disorder of the spine
abnormal growth of the thoracic spine
anterior por on of the thoracic vertebrae do not develop as fast as the posterior por on
resul ng in exaggerated kyphosis
