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Anatomy > Anterior and Lateral Leg Compartment Session 33 > Flashcards

Anterior and Lateral Leg Compartment Session 33 Flashcards

1
Q

where is the leg

A

between the knee and ankle joint

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2
Q

what is the fascia like in the leg?

A

deep fascia surround the leg like a sleeve

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3
Q

what does the intermuscular septa extend from and what does it do

A

extends from deep fascia

separates leg into anterior, lateral and posterior compartments

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4
Q

name the 3 muscles of the anterior compartment

A

tibialis anterior
extensor hallucis longus
extensor digitorum longus

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5
Q

what is the innervation and arterial supply of the anterior compartment

A

deep peroneal nerve (deep because it penetrates from the posterior of leg)
anterior tibial artery

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6
Q

what is the origin of all the anterior compartment muscles

A

tibia, fibula and interosseus membrane

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7
Q

what is the path, insertion and action of tibialis anterior

A

path from origin: crosses anterior aspect of ankle medially

inserts: onto medial cuneiform
action: dorsiflexes and inverts foot

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8
Q

what is the path, insertion and actions (3) of extensor hallucis longus

A

path from origin: tendon crosses anterior aspect of ankle

insertion: distal phalanx of big toe
action: dorsiflexes foot at ankle, inverts foot and extends big toe

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9
Q

what is the path, insertion and action of extensor digitorum longus
how many tendons does it give rise to

A

path from origin: 4 tendons cross anterior aspect of ankle
insertion: distal phalanges of toes 2-5
action: dorsiflexes foot at ankle joint and extends to 2-5
4 tendons

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10
Q

where is the dorsalis pedis pulse, what artery is it and what is the artery a continuation of

A

between tendons of extensor digitorum longus and hallucis longus
dorsalis pedis artery
anterior tibial artery

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11
Q

what 2 muscles r in the lateral compartment of the leg

A

peroneus longus and brevis

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12
Q

what is the innervation and arterial supply of the lateral compartment of the leg

A

superficial peroneal nerve

peroneal artery

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13
Q

what is the origin and action of peroneaus longus and brevis

A

attachment: fibula
action: evert foot at subtalar joint

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14
Q

what is the relationship between peroneus longus and brevis

A

longus to more superficial than brevis

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15
Q

what is the insertion of peroneus longus

A

plantar surface of medial cuneiform bone

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16
Q

what is the insertion of peroneus brevis

A

base of 5th metatarsal

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17
Q

what is the path of the tendons of the peroneus longus and brevis

A

travel posterior to the lateral malleolus

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18
Q

what r the two end branches of the common peroneal nerve

A

deep and superficial

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19
Q

what do the superficial and deep peroneal nerves innervate

A

deep: anterior muscles of leg
superficial: lateral muscles of leg

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20
Q

what is the path of the common peroneal nerve

A

crosses across the posterior aspect of head of fibula
then lies lateral to the neck of the fibula
goes under peroneus long where it splits

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21
Q

what does the popliteal artery split into and where

A

popliteal fossa

anterior and posterior tibial artery

22
Q

what r the three different bone groups in the foot

A

phalanges, metatarsals, tarsals

23
Q

how many tarsals r there and name them

A

7

talus, calcaneus, navicular, medial cuneiform, intermediate cuneiform, lateral cuneiform, cuboid

24
Q

what is the mnemonic to remember the tarsals

A

trolls cant name multiple important lakes correctly

25
Q

what r the metatarsals in between and how many r there

A

tarsals and phalanges

5

26
Q

how many phalanges r there in the toes and what r they called)

A

toes 2-5: 3 phalanges (proximal, middle, distal)

toe 1: 2 phalanges (proximal, distal)

27
Q

what r the three regions of the foot

A

forefoot, midfoot and hindfoot

28
Q

what is the forefoot

A

metatarsals and phalanges

29
Q

what is the midfoot

A

cuneiforms and cuboid and navicular

30
Q

what is the hindfoot

A

talus and calcaneus

31
Q

where r metatarsophalangeal and interphalangeal joints located

A

between metatarsals and proximal phalanges

in between phalanges

32
Q

what r the 4 movements of the foot and at what joint r they located (be able to demonstrate them)

A

dorsiflexion, plantarflexion- ankle joint

inversion, eversion- subtalar joint

33
Q

what r the four movements of the toes

A

flexion
extension
adduction
abduction

34
Q

what r the arches of the foot raised by (2) and what forms the arches

A

longitudinal and transverse arches of the foot

arrangement of bones of the foot

35
Q

what is the purpose of the arches of the foot

A

shock absorption

36
Q

what r the two bones of the leg and which is medial and lateral

A

tibia and fibula

fibula is lateral, tibia is medial

37
Q

what is the ankle joint formed by (3)

A

tibia, fibula, talus

38
Q

what part of the tibia and fibula contribute to the ankle joint

A 
tibia= medial malleolus
fibula= lateral malleolus
39
Q

what is the subtalar joint formed by (3)

A

talus and calcaneus and navicular

40
Q

what is the knee joint formed by (3)

A

patella, femur and tibia

41
Q

what part of the tibia forms the knee joint

A

lateral and medial tibial plateaus

42
Q

what lies betwen the tibial plateus

A

intercondylar tubercles

43
Q

what r the two main superficial veins that drain the foot

A

great and small saphenous vein

44
Q

what is the path of the great saphenous vein and where does it terminate

A

travels anterior to medial malleolus and up the medial aspect of the leg terminates at femoral vein in femoral triangle

45
Q

what is the path of the small saphenous vein and where does it terminate

A

travels posterior to the lateral malleolus and up posterior aspect of leg
terminates at popliteal vein in popliteal fossa

46
Q

what is the dorsal surface of the foot

A

top of the foot

47
Q

what is the small muscle in the dorsum of the feet called

A

extensor digitorum brevis

48
Q

tendons of extensor digitorum brevis (how many and where to) and what is it innervated by

A

4 tendons to toes 2-5

innervated by deep peroneal nerve

49
Q

what is the arterial supply of the anterior leg and what is this a branch of

A

anterior tibial artery, popliteal artery

50
Q

what is the arterial supply of the lateral leg and what is this a branch of

A

fibular arteries, posterior tibial artery

Anatomy (28 decks)

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