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Flashcards in lower leg and nerves Deck (42):
1

anterior compartment includes

tibialis anterior, extensor digitorum lungus, extensor hallucis longus, fibularis tertius

2

tibialis anterior

stuck on tibia on medial side of foot, flexes ankle and inverts foot, deep fibular nerve

3

extensor digitorum longus

most lateral of anterior muscles, assists in dorsiflexion, deep fibular

4

extensor hallicus longus

thin, deep to TA and EDL, middle fibular, distal phalanx, dorsiflex and extend, deep fibular nerve

5

lateral compartment

fibularis longus, fibularis brevis; superficial fibular, fix ankle to prevent eversion

6

fibularis longus

lateral side of leg, runs underneath malleolis, steadies foot when on one foot

7

fibularis longus courses inferiorly to...

fibularis brevis and crosses under foot

8

fibularis brevis

deep to longus, inserts in medial side of foot, everter

9

posterior compartment

largest layer, in deep and superficial layer; flexion, inversion and toe flexion

10

muscles of superficial posterior compartment

gastrocnemius, soleus, plantaris; all innervated by tibial

11

gastrocnemeus

2 heads, lateral and medial condyle, plantarflexion, flexes leg

12

soleus

head of fibula and posterior tibula, postural action, plantar flexion

13

plantaris

absent in 10%, high density of spindle fibers

14

deep posterior leg

popliteus, flexor hallicus longus, flexor digitorum longus, tibialis posterior

15

popliteus

inserts in posterior medial tibia, inserts in lateral knee, laterally rotates femur, initiates unlocking of knee

16

flexor hallicus longus

flexes big toe, important for walking, tendon passes over distal tibia, deep to FDL, originates from fibular side

17

flexor digitorum longus

originates from medial surface, runsto lateral surface, flex toes, flex foot

18

tibialis posterior

deepest, in between FDL, FHL; inserts on tarsals, plantar flexes, invert foot

19

foot muscles

maintain weight bearing arches of foot, and support stance and gait

20

muscles in second layer act on?

tendons

21

muscles on dorsum of foot

extersor digitorum brevis, extensor hallucis brevis, innervated by deep fibular

22

femoral nerve

not within femoral sheath, course deep to inguinal ligament, contribute to sartorius, quadriceps, pectinus, iliacus, cutaneous branches are saphenous and cutateous

23

sciatic

enters through sciatic foramen, deep to glut max, between ishial and greater trochanter, branches to tibial and common fibular

24

obturator

pass through obturator canal, supplies gracilis, 3 adductors, obturator externus, cuttaneous middle 1/3 of thigh

25

tibial n

forms sural nerve with common fibular, tibia or fibular nerve can cause sensory loss

26

muscular innervation of tibial

gastrocnemius, plantaris, soleus, popliteus, lateral lateral lateral

27

common fibular

most commonly injured nerve, because it courses around end of fibula, result in foot drop, effects gait, deep and superficial branch, deep is Ta and EDL; superficial branch fibularis side, cutaneous lateral

28

deep fibular nerve

courses with ant tibial a, muscles extensor compartment and extensor dig and hallucis brevis

29

superficial fibular nerve

medial side of dorsum of foot, medial side of toe, funny presentation, if injure superficial will lose feeling everywhere but between big and 2nd toe

30

posterior tibial

runs between deep and superficial mm, innervate heal, medial and lateral plantar

31

medial plantar nerve

innervates foot, origin post tibial, innervate abductor hallucis, flexor dig brevis, flexor hallicus brevis, 1st lumbrical, sole of foot

32

lateral plantar nerve

from posterior tibial, supplies all muscles but four and cutaneous of little toe

33

hip joint

wide range of motion, less than shoulder, movement sacrificed to provide strength and stability, depends on strong ligaments, allows all movement

34

lunate surface

socket of hip joint

35

intertrochanteric line

formed by attachment of hip ligaments and joint capsule

36

3 important ligaments for supporting hip joint and upright posture

iliofemoral ligament (Y, prevents backward rotation), pubofemoral ligament (prevents hyper abduction), ishiofemoral (prevents medial rotation, extension)

37

head of femur ligament

capitis femoris, if damaged in kids, can lead to deteriorated femur, obturator supplies, radiated pain in knee

38

acetabular labrum

job to deepen joint capsule

39

transverse acetabular ligament

ligament to joint close acetabular labrum

40

which artery supplies head of femur

obturator, retinacular

41

lateral medial circumflex supplies

neck of femur

42

Articular capsule

lubricate hip joint