Foot and Ankle anatomy Flashcards Preview

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Flashcards in Foot and Ankle anatomy Deck (26):
1

What bones make up the subtalar joint?

Talus and Calaneus

2

What bones are involved in calcaneocuboid joint?

calcaneus and cuboid

3

What bones are involved in the Talocalcaneonavicular joint in the foot?

Talus/calcaneus and navicular

4

In the tarsometatarsal joint which bones are involved?

Cuneiforms/cuboid and metatarsals

5

What movements do Calcaneocuboid and talocalcaneonavicular joints allow?

Inversion - Tib A&P, tibial and deep fibular nerves
Eversion - Fibularis muscles, superficial and deep fibular nerves

6

What kind of joint are interphalangeal joints?

Synovial hinge joints

7

What is th function of the arches of the foot?

Provide shock absorption
"push-off" spring in function
increased weight-bearing capacity by weight redistribution across the whole foot

8

What supports the medial longitudinal arch?

Flexor pollicis longus
Tibialis anterior
Fibularis longus

9

When standing what does the lateral longitudinal arch do?

Usually weight bears

10

What supports the transverse arch?

Fibularis longus

11

Apart from muscles, what else supports the 3 arches of the foot?

Plantar aponeurosis
Plantar ligaments

12

How many intrinsic muscles are there in the foot?

20

13

Where do the intrinsic muscles of the foot attach?

Proximally and distally within the foot

14

Within the compartments of the sole, how many intrinsic muscles reside here, how are they arranged and what is their function in terms of movement?

11 muscles
arranged in 3 layers or between metatarsals (7 interossei)
flexion (sole muscles) and abduction/adduction (interossei) of the toes

15

What is the function of the 2 dorsal muscles?

Short extensors of the toe

16

What is the dorsalis pedis artery a branch of?

Anterior tibial artery

17

Where is the pulse from dorsalis pedis taken?

Lateral to extensor pollicis longus

18

The arcuate artery on the dorsum of the foot, comes from what larger artery?

Dorsalis pedis artery

19

The medial and lateral plantar arteries are branches of what?

Posterior tibial artery

20

What arteries contribute to the deep plantar arch?

Medial and lateral plantar arteries

21

What does the deep plantar arch split into?

Metatarsal arteries which branch into digital arteries

22

What is the motor supply to the interossei muscles of the foot?

Tibial nerve

23

Which nerves contirbute to the sensory nerve supply to the dorsum of the foot?

Mainly superficial fibular nerve
deep fibular nerve
sural nerve
saphenous nerve

24

Which nerves contirbute to the sensory nerve supply to the plantar surface of the foot?

Mainly tibial nerve
sural nerve
saphenous nerve

25

What is the origin of the plantar fascia of the foot?

tuberosity of calcaneous (slightly medial)

26

What is the insertion of the plantar fascia of the foot?

heads of metatarsals