Third slide deck- the Leg Flashcards Preview

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Flashcards in Third slide deck- the Leg Deck (134)
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1

Observable features of leg..

slide 2

2

Observable features of leg..

Gastrocnemius
Soleus
Great saphenous vein
Calcaneal tendon

3

Both the ___ and ___ muscles insert on the calcaneus via the calcaneal (Achilles) tendon

Gastrocnemius

Soleus

4

The ___ ___is the large bony projection on the medial side of the ankle

medial malleolus

5

The greater saphenous vein is the ____ of the two saphenous veins

Medial

6

The greater sephenous vein travels anterior to the medial malleolus, and ascends on the medial leg and thigh to terminate in the ___

femoral vein

7

The ___ ___ is the large bony projection on the lateral side of the ankle

lateral malleolus

8

The ___ ___ vein is the lateral of the two saphenous veins

lesser saphenous

9

The lesser saphenous travels posterior to the lateral malleolus, and ascends on the posterior leg to terminate in the ___ ___

Popliteal vein

10

More observable pictures of the leg...

slide 6

11

which compartment is responsible for:
Dorsiflexion at the ankle
Inversion of the foot (supination is a combination of inversion, plantarflexion and adduction.)
Extension of the toes
Innervation: deep fibular nerve

Anterior compartment

12

Which compartment is responsible for:
Weak plantarflexion
Eversion of the foot (pronation is a combination of eversion, dorsiflexion and abduction)
Innervation: superficial fibular nerve

Lateral compartment

13

Which compartment is responsible for:
Plantarflexion of the ankle
Flexion of the toes
Innervation: tibial nerve

Posterior Compartment

14

Compartments of the leg as seen from above:

slide 8

15

Compartments of the leg cross section:

slide 9

16

Anterior compartment consists of muscles that dorsiflex the foot:

-Tibialis anterior
-Extensor hallucis longus
-Extensor digitorum longus
-Fibularis (peroneus) tertius

17

Innervation of the anterior compartment muscles of the leg:

Innervation: deep fibular (peroneal) nerve

18

review some ant. compartment muscles of the leg:

slide 11

19

Tendons of the muscles of the anterior compartment are held firmly to the ankle by thickenings of deep fascia: the superior extensor retinaculum (AKA __ ___of the ankle) and inferior extensor retinaculum (AKA ___ ___ of the ankle)

Transverse ligament

Cruciate ligament

20

Origin: tibia, and interosseous membrane
Insertion: first cuneiform and first metatarsal

Tibialis Anterior

21

Action: dorsiflexes foot at the ankle and inverts foot
Innervation: deep fibular (peroneal) nerve

Tibalis Anterior

22

Origin: fibula, and interosseous membrane
Insertion: distal phalanx of great toe (dorsal surface)

Extensor Hallucis Longus

23

Action: extends great toe and dorsiflexes foot at ankle
Innervation: deep fibular (peroneal) nerve

Extensor Hallucis Longus

24

Origin: tibia, fibula, and interosseous membrane
Insertion: toes 2 – 5 (dorsal surface of middle and distal phalanges)

Extensor Digitorum Longus

25

Action: extend toes 2 - 5 and dorsiflexes foot at ankle
Innervation: deep fibular (peroneal) nerve

Extensor Digitorum Longus

26

Origin: fibula, and interosseous membrane
Insertion: base of fifth metatarsal

Fibularis (Peroneus) Tertius

27

Action: dorsiflexes and everts the foot (in conjunction with extensor digitorum longus)
Innervation: deep fibular (peroneal) nerve

Fibularis (Peroneus_ Tertius

28

Lateral compartment consists of muscles that ___ __ and evert the foot

Plantar flex

29

Lateral compartment consists of muscles that plantar flex and evert the foot

Fibularis (peroneus) longus
Fibularis (peroneus) brevis

30

Fibularis (peroneus) longus
Fibularis (peroneus) brevis

Innervation: ??

superficial fibular (peroneal) nerve