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LSB235- ANATOMY > wk 7- tibia, fibula, tarsals and ankle joint > Flashcards

wk 7- tibia, fibula, tarsals and ankle joint Flashcards

1
Q

what joint is, what ligaments attach and what movement is the Proximal tibiofibular joint?

A

•Plane synovial joint (flat facets)
•Articular joint capsule attaches to margins of the articular surfaces
•Anterior and posterior ligaments
•Slight movement during dorsiflexion

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2
Q

what joint, ligaments and movements is the distal tibiofibular joint

A
  • Syndesmotic fibrous joint (compound )
    • Compound because:
    • Interosseous membrane (unites shafts)
    •Anterior, Interosseous and Posterior inferior tibiofibular ligaments
    •NB posterior inferior tibiofibular ligament forms inferior tibiofibular joint =
    unites distal ends (malleoli) of bone > posterior wall of ankle joint
    •ESSENTIAL for stability of ankle joint as it keeps lateral malleolus firmly against
    surface of lateral surface of talus – slight movement during dorsiflexion
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3
Q

types of arches and what bones are included in them? and keystone for each

A

medial longitudinal arch- calcaneus, metatarsals 1, 2, 3, cuneiform M, I, L, talus (talus)
lateral longitudinal arch- calcaneus, cuboid, metatarsals 4, 5. (cuboid)
transverse arch- base of metatarsals, all cuneiforms, cuboid

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4
Q

arches of foot created by

A

1) Shape of the bones
2) Tightness of associated
ligaments
3) Muscles that cross joint
supporting arches

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5
Q

flat foot is also called and causes

A

pes planus
• Ligament weakness (plantar
clacaneonavicular/spring lig)
• Muscle weakness (tibialis
posterior, fibularis longus)
• Injury to the foot
• Risk factors such as injury,
obesity and rheumatoid
arthritis

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6
Q

high arch foot is called? and symptoms

A

pes cavus
Metatarsalgia (1st and 5th metatarsal heads)
• Calluses/corns
• Claw toes
• Ankle joint instability with frequent sprains
• Tight Achilles tendons

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7
Q

what does deltoid ligament do for the ankle joint?

A

Medial/deltoid ligament – stabiles ankle joint during eversion and
prevents subluxation (partial dislocation) of the joint

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8
Q

lateral ligaments of ankle joint

A
  1. Anterior talofibular ligament
    lateral malleolus to lateral facet and
    neck of talus
  2. Posterior talofibular ligament
    horizontally from lateral malleolar fossa
    to lateral tubercle of talus
  3. Calcaneofibular ligament
    long cordlike ligament extends from apex
    of lateral malleolus to ~ pereonal
    tubercle on calcaneus
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9
Q

major movements of ankle joint?

A

dorsiflexion - initiated by extensor muscles

plantar flexion- initiated by flexor muscles

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10
Q

minor movements of ankle joint

A

inversion and eversion

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11
Q

cuneiforms

A

Medial Cuneiform
Lateral surface has an L-shaped facet.
Intermediate Cuneiform
Medial surface has an L-shaped facet.
Lateral surface has a B-shaped facet.
Lateral Cuneiform
Medial surface has a B:-shaped facet.
Lateral surface has 2 facets.

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12
Q

medial collateral/ deltoid ligaments

A

Three superficial bands
1. Tibiocalcaneal ligament
2. Tibionavicular ligament
3. Superficial post. tibiotalar ligament
Two deep bands
1. Deep anterior tibiotalar
2. Deep posterior tibiotalar

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13
Q

lateral collateral ligament

A
  1. Anterior talofibular ligament
  2. Calcaneofibular ligament
  3. Posterior talofibular ligament
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14
Q

what 2 joints are sndesmoses joint?

A

joined by 2 bones and ligaments to support the joint
distal tibiofibular joint and cuboideonavicular joint

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15
Q

what movement does the proximal tibiofibular joint do

A

gliding

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16
Q

do phalanges count as the arches of the foot?

A

no

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17
Q

talus articulates with what bones?

A

tibia fibula, calcaneus and navicular

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18
Q

what muscle attaches to the navicular bone

A

tibialis posterior

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19
Q

what muscle goes through the posterior groove between tubercles on the talus?

A

flexor hallucis longus

20
Q

what is the surface of the talus called that articulates with the tibia

A

trochlear surface

21
Q

how many facets does the talus have for the tibia

A

2

22
Q

how many articular facets does the plants surface of the talus have

A

4

23
Q

anatomical joints may have what

A

limited movement, 2 or more bones, several articular surfaces, one joint cavity

24
Q

whats another name for functional joint

A

clinical joint

25
Q

functional joints must have more than 1 what?

A

anatomical joint

26
Q

pronation involves what movements

A

dorsiflexion, abduction and eversion

27
Q

supination involves

A

dorsiflexion, adduction and inversion

28
Q

the ankle joint is what kind of joint

A

modified hinge joint

29
Q

the deltoid ligament attaches to what structure on the calcaneus

A

sustentaculum tali

30
Q

what do all lateral collately ligaments attach to?

A

fibula

31
Q

what shape is the trochlear surface

A

concayoconvex

32
Q

what part of the tibia does the deltoid ligament attach to?

A

medial malleolus

33
Q

on what side of the calcaneus is the sustentaculum talo

A

medial

34
Q

what does the navicular articulate with

A

talus, cuboid and all cuneiform

35
Q

the lateral cuneiform articulates with what

A

navicular, cuboid, intermediate cuneiform second third and fourth metatarsal

36
Q

an articular facet of the letter B is on what

A

medial surface of the lateral cuneiform bone and lateral surface of the intermediate

37
Q

what is the smallest tarsal bone

A

intermediate cuneiform bone

38
Q

what goes into the groove of the cuboid bone

A

fibulas longus tendon

39
Q

synovial joints exist between the cuboid and what bones?

A

5th metatarsal, navicular, 4th metatarsal

40
Q

how many grooves for the fibulas longus is there?

A

2- fibula and cuboid

41
Q

how many grooves are there for the tendon of flexor hallucis longus and where

A

3- talus, tibia, calcaneus

42
Q

is there more than one sulcus?

A

yes on talus and calcaneus between their articular surfaces

43
Q

between the talus and calcaneus, what are the articular facets called and how many ?

A

on plantar surface of talus- anterior, middle, posterior calcaneal facet and sulcus tali

on dorsal surface of calaceanus- anterior middle posterior talar facet and sulcus calcanei

44
Q

what main features are on the planter of the calcaneus

A

lateral and medial process of calcanea tuberosity and anterior tubercle

45
Q

what feature does the navicular have on the medial surface and what attaches

A

navicular tuberosity, tibialis posterior

46
Q

what features does the cuboid have on its plantar surface

A

1 Peroneal ridge
2 Peroneal groove
3 Tuberosity (lateral)
4 Beak of cuboid

47
Q

what tendon runs under the cuboid through the groove

A

fibulas longus and brevis

LSB235- ANATOMY (13 decks)

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