lower extremity nerves + muscles + compartments Flashcards Preview

DIT topics > lower extremity nerves + muscles + compartments > Flashcards

Flashcards in lower extremity nerves + muscles + compartments Deck (27)
Loading flashcards...
1
Q

psoas, iliacus (both = illiopsoas), pectineus, sartorius (3 hip flexors)
vastus lateralis, vastus intermedius, vastus medialis, rectus femoris (knee extension = quads)

A

motor innervation of femoral nerve

need femorAL to kick a BALL

2
Q

sensory innervation of:
anterior thigh
medial lower leg

A

femoral nerve

3
Q

loss of thigh flexion + leg extension

↓ sensation to anterior thigh + medial lower leg

A

femoral nerve injury:

pelvic fracture

4
Q

adductor magnues, adductor longus, adductor brevis (thigh adduction)
gracilis (knee flexion)

A

motor innervation of obturator nerve

5
Q

sensory innervation of:

medial thigh

A

obturator nerve

6
Q

loss of thigh adduction

↓ sensation to medial thigh

A

obturator nerve injury:

ANTERIOR dislocation of hip

7
Q

tensor fascia latae, gluteus medius, gluteus minimus (hip abduction and medial rotation of thigh)

A

motor innervation of superior gluteal nerve

8
Q

trendelenburg gait:

normal: lift leg - standing leg (opposite leg) glut contracts
injury: contralateral hip drops, ispilateral to standing leg (no hip aduction)

A

superior gluteal nerve injury:
POSTERIOR hip dislocation OR
polio

9
Q

gluteus maximus (hip extension + lateral rotation of thigh)

A

motor innervation of inferior gluteal nerve

10
Q

difficulty standing up or climbing stairs or walking

A

inferior gluteal nerve injury:
POSTERIOR hip dislocation OR
posterior approach during hip replacement surgery

11
Q

biceps femoris, semitendinosus, semimembranosus, (3 = hamstrings), adductor magnus (hip extension and knee flexion)

A

motor innervation of sciatic nerve (tibial branch)

12
Q

sensory innervation of:
posterior thigh and gluteal regions
entire lower leg except medial aspect

A

sciatic nerve

13
Q

calf muscles:
gastrocnemius, soleus, plantaris (plantar flexion)
popliteus (unlocks knee when in extension)
flexor hallucis longus, flexor digitorum longus (toe flexion)
tibialis posterior (inversion of foot)

A

motor innervation of tibial nerve

14
Q

sensory innervation of:
sole of foot
back of calf

A

tibial nerve

back of calf = sural nerve

15
Q

pain in lower back/buttock that travels down leg

+ straight leg test

A

sciatic nerve injury:
intervertebral disc herniation
spinal stenosis
spondylolisthesis

16
Q

loss of sensation of SOLE OF FOOT

A

tibial nerve injury:

knee injury

17
Q

peroneus longus, peroneus brevis, short head of biceps femoris

A

motor innervation of common fibular nerve (common peroneal nerve)

18
Q

sensory innervation of:
lateral lower leg
dorsal side of foot

A

common fibular nerve (common peroneal nerve)

19
Q
foot drop (loss of dorsiflexion)
peroneal neuropathy (from prolonged bed rest or habitual leg crossing)
A

common fibular nerve injury:
chronic compression
habitual leg crossing
fracture of NECK of fibula

20
Q
peroneus tertius (foot eversion)
tibialis anterior, extensor hallucis longus, extensor digitorum longus (foot dorsiflexion)
A

motor innervation of deep fibular nerve (deep peroneal nerve)

21
Q

sensory innervation of:

webbing between first and second digits

A

deep fibular nerve (deep peroneal nerve)

22
Q

foot drop

A

deep fibular nerve (deep peroneal nerve) injury:

trauma to LATERAL knee

23
Q

branches of femoral nerve

A

1) tibial nerve (posterior compartment of leg)

2) common fibular nerve (anterior + lateral compartment of leg)

24
Q

adductor magnus m. is innervated by

A

obturator nerve

tibial nerve

25
Q

branches of tibial nerve

A

1) sural nerve
2) medial plantar nerve (foot)
3) lateral plantar nerve (foot)

26
Q

branches of common fibular nerve (common peroneal nerve)

A

1) lateral sural cutaneous nerve

2) superficial fibular nerve

27
Q

fibula neck fracture

A

common fibular nerve (peroneal) most likely injured

Decks in DIT topics Class (115):