Session 4 MSK Flashcards

1
Q

The trochlear of the talus (ankle bone) articulates with the

A

Tibia and fibula

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2
Q

The head of the talus articulates with the

A

Navicular bone

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3
Q

the calcaneus (heel bone) articulates with the

A

Talus superiorly and cuboid anteriorly

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4
Q

the ankle joint is what type of joint and permits what

A

Hinge type synovial joint which permits dorsiflexion and plantarflexion

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5
Q

The talocalcaneal (subtalar) joint permits

A

Inversion and eversion of the foot

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6
Q

The tarsometatarsal joints permit

A

gliding and sliding movement

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7
Q

The metatarsophalangeal joints permit

A

Flexion, extension, some ad/ab suction, and circumduction

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8
Q

The inter phalangeal joints permit

A

Flexion and extension

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9
Q

What are the 3 articulations of the talus

A

Ankle joint, subtalar joint, talonavicular joint

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10
Q

What is the risk in talus fracture and why

A

Avascular necrosis - lack of muscle attachments and retrograde blood supply (arteries enter bone at distal end)

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11
Q

What takes the full weight of the body when the heel contacts the ground

A

Calcaneus (protrudes posteriorly)

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12
Q

what does the Achilles’ tendon attach to

A

Calcaneal tuberosity

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13
Q

What’s the name of the Joint between the metatarsal bases and tarsal bones

A

Tarsometatarsal joints

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14
Q

What is the name of the joints between the metatarsals and the adjacent metatarsals

A

Intermetatarsal joints

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15
Q

What are the joints between the metatarsal head and proximal phalanx called

A

Metatarsophalangeal joints

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16
Q

Tibia and fibula are bound together by .. at the ..

A

Tibiofibular ligaments at the distal tibiofibular joint

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17
Q

The only movements that take place at the ankle joint are

A

Dorsiflexion and plantarflexion

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18
Q

Plantarflexion of the ankle is produced by the

A

Muscles in the posterior compartment of the leg (gastrocnemius, soleus, plantaris and tibialis posterior)

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19
Q

Dorsiflexion of the ankle is produced by the muscles in the

A

Anterior compartment of the leg (tibialis anterior, extensor hallucis longus, extensor digitorum longus and peroneas tertius)

20
Q

Range of dorsiflexion is limited by

A

Passive resistance in the muscles of the posterior compartment

21
Q

Ankle joint is reinforced by

A

Lateral and medial ligaments

22
Q

3 parts of the lateral ligament of the ankle joint

A

Anterior and posterior talofibular ligament, calcaneofibular ligament

23
Q

What do the 3 lateral ligaments of the ankle joint do

A

Resist inversion of the foot

24
Q

What does the medial/deltoid ligament of the ankle joint do

A

Resist excessive eversion of the foot

25
Q

Inversion and eversion of the foot occur at

A

Subtalar, calcaneocuboid and talocalcaneonavicular joints (NOT ANKLE)

26
Q

What are the main weight bearing bones during standing

A

Heel and heads of metatarsals

27
Q

What are the arches maintained by

A

Shape of interlocking bones, ligaments of foot, intrinsic muscles of foot and pull of long tendons of intrinsic muscles

28
Q

Which arch is most important clinically

A

Medial longitudinal

29
Q

What maintains the integrity of the medial longitudinal arch

A

the plantar aponeurosis and the spring ligament, tibialis anterior and peroneus

30
Q

4 muscles in anterior compartment of leg

A

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

31
Q

What do the 4 muscles in the anterior part of the leg do

A

Dorsiflexion and inversion of the foot at ankle joint

32
Q

What do the extensor digitorum longus and extensor hallucis longus do in addition to dorsiflexion and inversion

A

Extend the toes

33
Q

Muscles in the anterior compartment are innervated and supplied by the

A

Deep peroneal (fibular nerve) L4-5, and the blood supply is via the anterior tibial artery

34
Q

Two muscles in lateral compartment of leg

A

Fibularis longus and fibularis brevis

35
Q

What do the muscles of the posterior compartment of the leg do

A

Plantarflexion and invert

36
Q

What are muscles in the posterior compartment of the leg innervated by

A

Tibial nerve - terminal branch of sciatic nerve

37
Q

What do all the muscles of the superior posterior compartment insert into

A

Calcaneus via the calcaneal tendon

38
Q

4 muscles of deep posterior compartment and roles

A

Popliteus- knee joint only

tibialis posterior, flexor hallucis longus, flexor digitorum longus - act on foot and ankle

39
Q

Contents of tarsal tunnel

A
Tibialis posterior 
Flexor digitorum longus tendon 
Posterior tibial artery 
Posterior tibial vein 
tibial nerve 
flexor hallucis longus 

Tom dick and very nervous harry

40
Q

contents of popliteal fossa

A

Common peroneal nerve, tibial nerve, popliteal vein and artery, medial sural cutaneous nerve, short saphenous vein (drains into popliteal vein)

41
Q

4 borders of popliteal fossa

A

Semimembranosus, biceps femoris, medial head of gastrocnemius, lateral head of gastrocnemius and plantaris

42
Q

Floor of popliteal fossa

A

Popliteal surface of femur

43
Q

Roof of popliteal fossa

A

Popliteal fascia and skin

44
Q

Location of tarsal tunnel

A

Posterior to medial malleolus of ankle

45
Q

PED and TIP

A

Common Peroneal everts and dorsiflexes (injury = foot drop)

Tibial inverts and plantar flexes (injury = can’t walk on tip toes)