Osteology of the Foot Flashcards

1
Q

Where is the tarsal canal or sinus tarsi located?

A

within the calcaneal sulcus which is between the middle and posterior talar facets of the calcaneous

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2
Q
A

Talus (superior view)

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3
Q
A

Talus (inferior view)

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4
Q
A

Talus (medial view)

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5
Q
A

Talus (lateral view)

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6
Q
A

Talus (posterior view)

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7
Q
A

Calcaneus (superior view)

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8
Q
A

Calcaneus (inferior view)

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9
Q
A

Calcaneus (medial view)

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10
Q
A

Calcaneus (lateral view)

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11
Q
A

Cuboid (superior view)

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12
Q
A

Cuboid (posterior view)

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13
Q
A

Cuboid (lateral view)

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14
Q
A

Cuboid (anterior view)

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15
Q
A

Cuboid (posterior view)

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16
Q
A

Navicular (anterior view)

17
Q
A

Navicular (posterior view)

18
Q
A

Navicular (superior view)

19
Q
A

Navicular (inferior view)

20
Q

What are the articulations of the calcaneus and which joints do these make?

A

Talus (subtalar joint); Cuboid (Calcanealcuboid joint)

21
Q

Which tendon runs on the posterior surface of the sustentaculum tali?

A

tendon of flexor hallucis longus

22
Q

Which 2 tendons run along the lateral surface of the calcaneus?

A

Fibularis brevis
Fibularis longus

23
Q

What two structures combine to make the tarsal canal?

A

Calcaneal sulcus and sulcus tali

24
Q

The posterior end of the talus contains two tubercles and between them lies:

A

groove for tendon of flexor hallucis longus

25
Q

What are the 4 articulations of the medial cuneiform?

A

1st metatarsal, navicular, intermediate cuneiform, 2nd metatarsal

26
Q

What tendon attaches at the base of the medial cuneiform?

A

tibialis posterior m.

27
Q

What tendon attaches at the anterior and inferior aspect of the medial cuneiform?

A

tibialis anterior m.

28
Q

What tendon attaches at the lateral plantar aspect of the medial cuneiform?

A

fibularis longus m.

29
Q

What are the 6 articulations of the lateral cuneiform?

A

intermediate cuneiform, cuboid, 3rd metatarsal, 2nd metatarsal, 4th metatarsal, navicular

30
Q

Which tendons pass in the groove at the base of the metatarsal heads?

A

flexor digitorum longus and brevis

31
Q

The cuboid contains the peroneal sulcus which contains the tendon of what muscle?

A

peroneus longus

32
Q

What muscle attaches to the base of the 5th metatarsal?

A

peroneus brevis

33
Q

Draw the mnemonic to understand the primary ossification centers of the foot bones.

A
34
Q

What is the name of the most common accessory bone of the foot? Where is it located? What is its clinical significance?

A

Os trigonum; it’s an unfused lateral tubercle (posterior aspect of body of talus); can cause issues with talocrural joint, subtalar joint, or irritate tendon of flexor hallucis longus