Arches of the foot Flashcards Preview

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Flashcards in Arches of the foot Deck (14):
1

What does the shape of the arches allow?

act like springs:
1. weight bearing (of body)
2. shock absorbing during locomotion
3. flexibility for walking & running

2

Where are the 2 longitudinal arches in the foot formed?

medial & lateral arches
formed between tarsal bones & proximal end of the metatarsals

3

What is the medial arch formed of?

calcaneus, talus, navicular, 3 cuneiforms, first 3 (medial) metatarsal bones

4

What is the medial arch supported by in terms of muscles?

tibialis anterior, tibialis posterior, fibularis longus, flexor digitorum longus, flexor hallucis longus and intrinsic plantar foot muscles, (calcaneal tendon)

provide dynamic support

5

What are the ligaments that support the medial arch?

short and long plantar ligaments, plantar calcaneonavicular ligament, (medial ligament of the ankle joint - 'deltoid' ligaments)

and plantar APONEUROSIS

6

How do the bones support the medial longitudinal arch?

the shape of the bones of the arch

7

Describe the lateral arch

flatter than medial longitudinal arch
lies on ground in standing position (lateral - flatter)

8

Which bones form the lateral longitudinal arch?

calcaneus, cuboid, 4th & 5th metatarsal bones

9

Which ligaments support the lateral longitudinal arch?

plantar ligaments (esp. long plantar, short plantar and plantar calcaneonavicular ligament)

Plantar APONEUROSIS

10

Which muscles support the lateral longitudinal arch?

fibularis longus, flexor digitorum longus, flexor hallucis longus, intrinsic plantar foot muscles

11

Where is the transverse arch located and which bones is it formed by?

in coronal plane of the foot
formed by metatarsal bases, cuboid and cuneiforms

12

Which muscles support the transverse arch?

fibularis longus and tibialis posterior

13

Which ligaments support the transverse arch?

plantar ligaments (long & short plantar, plantar calcaneonavicular), deep transverse metatarsal ligaments

plantar APONEUROSIS

14

How many arches of the foot are there? What are they and what are they formed by?

2 longitudinal (lateral & medial)
1 anterior transverse arch
formed by tarsal & metatarsal bones - supported by ligaments & tendons in the foot