Lecture: Leg I/II - Dunn Flashcards Preview

Anatomy Lower Limb > Lecture: Leg I/II - Dunn > Flashcards

Flashcards in Lecture: Leg I/II - Dunn Deck (31):
1

pes anserinus

sartorius
gracilis
semitendinosus

2

what demarcates the origins of tibialis posterior and flexor digitorum longus?

vertical line on posterior surface of tibia

3

fibula articualtion with tibia proximally

fibular facet

4

fibula articulation with tibia distally

fibular notch

5

what m. takes origin from lateral surface of tibia?

tibialis anterior

6

two m. on lateral surface of fibula

peroneus longus
peroneus brevis

7

three muscles on anterior surface of fibula

extensor digitorum longus
extensor hallucis longus
peroneus terti

8

actions of muscles of anterior compartment

tibialis anterior and extensor hallucis longus: dorsiflexion, inversion, supination

extensor digitorum longus and peroneus tertius: dorsiflexion, eversion and pronation

9

accessory tendon pulls on capsule to keep it from trapping in 1st MPJ joint

extensor hallucis capsularis

10

medial tibial stress syndrome

"shin splints"
- m. micortrauma t otibialis anterior leads to small tears in periosteum underlying the m. - swelling can lead to minor compartment syndrome

11

anterior compartment neurovasculature

anterior tibial a.
deep peroneal n.

12

lateral compartment m. actions

eversion, pronation, plantarflexion

13

blood supply lateral compartment

peroneal a. (lies in posterior compartment)

14

actions superficial m. of posterior compartment

plantarflecion of talocrural joint

gastrocnemius and plantaris: flexion of knee

15

actions of deep m. of posterior compartment

plantarflexion, inversion, supination

popliteus: knee flexion, medial rotation of leg

16

posterior shin splints

microtrauma to tibialis posterior and underlying periosteum

17

calcaneal tendon rupture

- typically occurs in individuals with chronic calcaneal tendinitis
- 1-5 cm proximal to calcaneal tuberosity

18

neurovascualture posterior compartment

tibail n.
posterior tibial a and peroneal a.

19

sural n. =

medial sural cutaneuous n. (tibail n) + communicating branch of lateral sural cutaneous n. (common peroneal n.)

20

the sural n. continues in the foot as ...

lateral dorsal cutaneous n.

21

n. roots for tibial n.

L4-S3

22

n. roots for comm. peroneal n.

L4-S2

23

muscles innervated by tibial n.

popliteus
gastrocnemius
soleus
plantaris
flexor digitorum longus
flexor hallucis longus
tibialis posterior

24

muscles innervated by comm. peroneal n.

superficial peroneal n = peroneus longus and brevis

deep peroneal n. = tibailis anterior, extensor digitorum longus, extensor hallucis longus, peroneus tertius

25

most commonly injured n. in the lower limb

common peroneal n.
- vulnerable with fracture of fibular neck and knee dislocation
- results in unopposed plantarflexion and inversion = foot drop

26

inguinal ligament dermatome

L1

27

big toe and medial foot dermatome

L5

28

the saphenous n. is a branch of the ..

femoral n.

29

the great saphenous v. drains into...

femoral v.

30

the small saphenous v. drains into ...

popliteal v.

31

compartment syndrome

- trauma to structures within compartments may result in hemorrhage, edema, or inflammation
- strength of crural fascia precludes outward swelling of tissues
- potential compression of neurovasculature leading to ischemia, necrosis or atrophy of affected tissues
- treatment includes fasciotomy of affected compartment