Compartments of the Leg: Talocrural Joint and Foot Flashcards Preview

Structure and Function Test 1 > Compartments of the Leg: Talocrural Joint and Foot > Flashcards

Flashcards in Compartments of the Leg: Talocrural Joint and Foot Deck (81)
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1
Q

The deep fascia of the leg is called the

A

Crural fascia

2
Q

Extending from the crural fascia are three intermuscular septa, called the

A

Anterior, posterior, and transverse septa

3
Q

The leg is compartmentalized by the intermuscular septa and the interosseous membrane connecting the

A

Tibia and Fibula

4
Q

Distally, the crural fascia forms structures that prevent bowstringing of the tendons crossing the ankle joint. These are called

A

Retinaculua

5
Q

The leg can be organized into which 4 compartments?

A

Anterior, lateral, superficial posterior, and deep posterior

6
Q

The leg bones are the

A

Tibia (medial) and Fibula (lateral)

7
Q

The anterior leg muscles function in

A

Dorsiflexion and digit extension

8
Q

The muscles of the lateral leg function in

A

Foot eversion

9
Q

The muscles of the superficial posterior leg function in

A

Foot plantar flexion

10
Q

The muscles of the deep posterior compartment function in

A

Plantar flexion and digit flexion

11
Q

The muscles of the anterior leg compartment are innervated by the

A

Deep fibrular nerve

12
Q

The muscles of the lateral leg compartment are innervated by the

A

Superficial fibrular nerve

13
Q

The muscles of the superficial posterior and deep posterior compartments are innervated by the

A

Tibial nerve

14
Q

What are the 4 anterior leg muscles?

A

Tibialis anterior, extensor hallucis longus, extensor digitorum longus, and peroneus tertius

15
Q

Which anterior leg muscles function in dorsiflexion?

A

All of them

16
Q

Which anterior leg muscles function in foot INVERSION

A

Tibialis anterior

17
Q

Which anterior leg muscles function in digit extension?

A

Extensor hallucis longus and extensor digitorum longus

18
Q

What are the two muscles of the lateral leg?

A

Peroneus longus and peroneus brevis

19
Q

Both the peroneus longus and peroneus brevis both function in

A

Foot eversion

20
Q

What are the three muscles of the superficial posterior leg?

A

Gastrocnemius, soleus, and plantaris

21
Q

Which superficial posterior leg muscles function in Knee flexion?

A

Gastrocnemius and Plantaris

22
Q

Which superficial posterior leg muscles function in foot plantarflexion?

A

Gastrocnemius, plantaris, and soleus

23
Q

What are the 4 muscles of the deep posterior leg?

A

Popliteus, flexor hallucis longus, flexor digitorum longus, and tibialis posterior

24
Q

Which deep posterior leg muscles function in knee unlocking?

A

Popliteus

25
Q

Which deep posterior leg muscles function in digit flexion?

A

Flexor hallucis longus and flexor digitorum longus

26
Q

Which deep posterior leg muscle function in foot plantar flexion?

A

Tibialis posterior, flexor hallucis longus, and flexor digitorum longus

27
Q

Which deep posterior leg muscles function in foot inversion?

A

Tibialis posterior

28
Q

A part of the calcaneus which supports the talus

-where the spring ligament attaches

A

Sustentaculum tali

29
Q

The spring ligament attaches to the

A

Sustentaculum tali

30
Q

Articulation between the trochlea of the talus and the distal tibia and fibula

A

Talocrural joint

31
Q

The movements of dorsiflexion and plantarflexion occur at the

A

Talocrural joint

32
Q

What are the four ankle and foot ligaments?

A

Medial collateral (deltoid), Lateral collateral, Plantar calcaneonavicular (spring), and long plantar

33
Q

The medial collateral (deltoid) ligament attaches the

A

Tibia to the talus, calcaneus, and navicular. It also attaches talus to calcaneus

34
Q

The medial collateral (deltoid) ligament function to

A

Provide medial support to ankle. Resists eversion

35
Q

The lateral collateral ligament of the ankle attaches the

A

Fibular to the talus and calcaneus

36
Q

The lateral collateral ligament of the ankle functions to

A

Provide lateral support to ankle. Resist inversion

37
Q

The plantar calcaneonavicular (spring) ligament attaches the

A

Sustenaculum tali and navicular bone

38
Q

The plantar calcaneonavicular (spring) ligament function to

A

Support head of talus in TCN joint and provide elasticity to the arch

39
Q

The long plantar ligament attaches

A

Calcaneus, cuboid, and lateral 3 metatarsals

40
Q

The long plantar ligament functions to

A

Provide lateral arch support to foot

41
Q

The movements of dorsiflexion and plantarflexion occur between the

A

Trochlea of talus and medial malleolus of tibia and lateral malleolus of fibula

42
Q

The movements of inversion and eversion occur at both the

A

Subtalar and transverse tarsal joints

43
Q

Which leg muscles function in dorsiflexion?

A

Tibialis Anterior, Extensor Hallucis Longus, Extensor

Digitorum Longus

44
Q

Which leg muscles function in plantarflexion?

A

Gastrocnemius, Soleus, Tibialis Posterior, Flexor

Digitorum Longus, Flexor Hallucis Longus

45
Q

Which leg muscles function in inversion?

A

Tibialis anterior and tibialis posterior

46
Q

Which leg muscles function in eversion?

A

Peroneus longus and peroneus brevis

47
Q

The blood supply to the ankle and sole of the foot is via branches of the

A

Posterior tibial artery (called the medial and lateral plantar arteries)

48
Q

The dorsum of the ankle and foot is supplied by the

-branch of anterior tibial artery

A

Dorsalis pedis artery

49
Q

Ankle sprains are common occurences, with most being inverted sprains that stretch or tear the

A

Lateral collateral ligament of the ankle

50
Q

The lateral collateral ligaments tend to tear from

A

Anterior to posterior with increasing severity

51
Q

A painful inflammation of the plantar fascia that results from micro tears of the fascia due to repeated stress

A

Plantar fasciitis

52
Q

A very common foot deformity in which the proximal phalanx of the big toe deviates laterally and the first metatarsal deviates medially

A

Hallux valgus

53
Q

What happens in hallux valgus?

A

Proximal phalanx of big toe deviates laterall and first metatarsel deviates medially

54
Q

Friction leads to swelling of the bursa overlying the medial site of the metatarsal head, creating a

A

Bunion

55
Q

Injury of compression of the leg can lead to compartment syndrome because the crucial fascia is so tight. This would be relieved by a

A

Fasciotomy

56
Q

Joint between talus and calcaneus.

-A hinge joint where we see eversion and inversion

A

Subtalar joint

57
Q

Joint between talus, calcaneus, and navicular joint, and the calcaneocuboid joint

A

Transverse Tarsal joint

58
Q

We get motions of inversion and eversion at the

A

Subtalar and Transverse tarsal joints

59
Q

When the foot is dorsiflexed, abducted, and exerted we have

A

Pronation

60
Q

When the foot is plantarflexed, addicted, and inverted we have

A

Supination

61
Q

Pronation of the foot results in

A

Inner heel sole wear

62
Q

Supination of the foot results in

A

Outer heel sole wear

63
Q

Nerve in the sole of the foot that is equivalent to median nerve

A

Medial plantar nerve

64
Q

Nerve in the sole of the foot that is equivalent to ulnar nerve

A

Lateral plantar nerve

65
Q

Equivalent of radial and ulnar arteries in the foot

A

Lateral and medial plantar

66
Q

The superficial artery of the foot

A

Lateral plantar

67
Q

If you have occlusive disease in aortoiliac artery, there would be pain in the

A

Thigh and Buttock (also trouble maintaining erection)

68
Q

Femoral occlusive disease would result in pain in the

A

Calf

69
Q

Occlusive disease in popliteal or proximal tibial or fibular arteries presents with

A

Foot pain

70
Q

What are the three joints of the ankle and what do they predominantly do?

A
  1. ) Talocrural (dorsiflexion and plantarflexion
  2. ) Subtalar (inversion and eversion)
  3. ) Transverse tarsal (midfoot inversion and eversion)
71
Q

Which ligament from the ankle’s LCL is most likely to be injured in an ankle sprain?

A

Anteriotalofibular ligament

72
Q

Runs from the talus to the fibula and resists inversion

A

Anteriotalofibular ligament

73
Q

The plantar fascia is analogous to the palmar aponeurosis, and where it attaches to the calcaneus is the location of

A

Plantar fasciaitis

74
Q

What is the motor innervation of the dorsum surface of the foot?

A

Deep fibular

75
Q

What is the sensory innervation of the dorsum surface of the foot?

A

Superficial Fibular (L5) and Deep fibular (only webbing between great toes)

76
Q

The plantar surface of the foot receives motor and sensory innervation from branches of the tibial nerve called

A

Medial and lateral plantar nerves

77
Q

When your foot falls asleep it is due to compression of the

A

Superficial fibular

78
Q

Analogous to the median nerve in the hand

A

Medial plantar nerve

79
Q

Analogous to the ulnar nerve in the hand

A

Lateral plantar nerve

80
Q

The main blood supply for the foot is from the

-divides into medial and lateral plantar arteries

A

Posterior tibial artery

81
Q

The predominant superficial arch of the foot is from the

A

Lateral plantar artery

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