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VCU Anatomy Test 2 > Foot > Flashcards

Flashcards in Foot Deck (43):
1

What surface of the skin on the foot is thin skin, with loose subcutaneous tissue?

dorsal surface

2

What surface of the skin on the foot is thick skin, with fibrous subcutaneous tissue & fat filled areas?

plantar surface

3

On the dorsal surface of the foot, fascia is thin. It is continuous with inferior extensor retinaculum proximally & plantar fascia posteriorly & laterally. What is medial?

flexor retinaculum

4

On the plantar surface of the foot, fascia is thick. The centralized region is what?

plantar aponeurosis (plantar fascia)

5

What gives off vertical septa that divides the sole of the foot into medial, central, & lateral compartments?

plantar aponeurosis (plantar fascia)

6

Layer 1 muscles

1. abductor hallucis
2. flexor digitorum brevis
3. abductor digiti minimi

7

Abductor hallucis
Innerv:
Function:

Innerv: medial plantar n.

Function:
1. ABducts great toe at MP joint
2. flexes great toe at MP joint

8

Flexor digitorum brevis
Innerv:
Function:

Innerv: medial plantar n.

Function: flexes lateral 4 digits

9

ABductor digiti minimi
Innerv:
Function:

Innerv: lateral plantar n.

Function:
1. ABducts 5th digit
2. flexes 5th digit

10

Layer 2 muscles

1. quadratus plantae
2. lumbricals (4)

11

Quadratus plantae
Innerv:
Function:

Innerv: lateral plantar n.

Function: assists FDL in flexion of lateral 4 digits (straightens out the pull of FDL tendon)

12

Lumbricals (4)
O:

O: tendons of FDL

13

Lumbricals (4)
Innerv:
Function:

Innerv:
medial: medial plantar n.
lateral three: lateral plantar n.

Function:
1. flexes digits at MP joint
2. extends digits at IP joint

14

Layer 3 muscles

1. flexor hallucis brevis
2. adductor hallucis
3. flexor digiti minimi brevis

15

Flexor hallucis brevis:
Innerv:
Function:

Innerv: medial plantar n.

Function: flexes great toe at MP joint

16

Adductor hallucis (2 heads!)
Innerv:
Function:

Innverv: lateral plantar n.

Function: adducts 1st digit

17

Flexor digiti minimi brevis
Innerv:
Function:

Innerv: lateral plantar n.

Function: flexes 5th digit at MP joint

18

Layer 4 muscles

1. plantar interossei (3)
2. dorsal interossei (4)

19

Plantar Interossei
Innerv:
Function:

Innerv: lateral plantar n.

Function:
1. ADducts digits 3-5 (toward 2nd digit)
2. flexes 3-5 digits at MP joints

20

Dorsal Interossei
Innerv:
Function:

Innerv: lateral planter n.

Function:
1. ABduct digits 2-4 (digit 2 medially & laterally)
2. flexes digits 2-4 at MP joints

21

Medial plantar n. innervates what?

1. ABductor hallucis
2. flexor digitorum brevis
3. flexor hallucis brevis
4. 1st lumbrical
5. most of the cut. sole of the foot

22

What 2 muscles are on the dorsum of the foot?

1. extensor digitorum brevis
2. extensor hallucis brevis

23

Extensor digitorum brevis
Function:

aids EDL in extension of digits 2-4

24

Extensor digitorum brevis
Function:

aids EHL in extension of great toe at MP joint

25

What a. comes from the anterior tibial a.

dorsalis pedis a.

26

What 3 ligaments are on the lateral part of the ankle?

1. anterior talofibular ligament
2. posterior talofibular ligament
3. calcaneofibular ligament

27

The ligament on the lateral aspect of the ankle is known collectively as what?

deltoid ligament

28

What is the ankle joint known as?

talocrural joint

29

What movements can the talocrural joint (ankle) do?

dorsiflexion
plantarflexion

30

What movement of the ankle is performed by the muscles in the anterior compartment of the leg? It is limited by passive resistance of the triceps surae & by the medial and lateral ligaments?

dorsiflexioin

31

What movement of the ankle is performed by the muscles in the posterior compartment of the leg? It is limited by the medial and lateral ligaments.

plantarflexion

32

What joint is betweenn the talus and the calcaneus?

subtalar joint

33

What 2 movements can occur at the subtalar joint?

1. inversion
2. eversion

34

What subtalar joint movement is performed by tibialis anterior & posterior? It is resisted by lateral ankle ligaments?

inversion

35

What subtalar joint if performed by fibularis longus, brevis, & tertius? It is resisted by the deltoid ligament.

eversion

36

What are the 3 ligaments of the transverse tarsal joint?

1. plantarcaneonavicular "spring" ligament
2. long plantar ligament
3. short planter (calcaneocuboid) ligament

37

*Which ligament extends from the sustentaculum tali of the calcaneous to the navicular? It is critical for the integrity of the talocalcaneonavicular joint.

1. plantarcaneonavicular "spring" ligament
2. long plantar ligament
3. short planter (calcaneocuboid) ligament

1. plantarcaneonavicular "spring" ligament

38

*Which ligament support the medial longitudinal arch?

1. plantarcaneonavicular "spring" ligament
2. long plantar ligament
3. short planter (calcaneocuboid) ligament

1. plantarcaneonavicular "spring" ligament

39

*Which ligament extends from the calcaneous to the cuboid & metatarsals? It also supports the lateral longitudinal ligament and forms the floor of tunnel for the tendon of fibularis longus m.

1. plantarcaneonavicular "spring" ligament
2. long plantar ligament
3. short planter (calcaneocuboid) ligament

2. long plantar ligament

40

*Which ligament is deep to the long plantar ligament? It extends from the calcaneous to the cuboid and forms the roof of the tunnel for the tendon of fibularis longus.

1. plantarcaneonavicular "spring" ligament
2. long plantar ligament
3. short planter (calcaneocuboid) ligament

3. short planter (calcaneocuboid) ligament

41

Name the arch that runs from side to side of the foot.

Transverse Arch

42

Name the arch that contains the medial longitudinal arch & the lateral longitudinal arch.

Longitudinal Arch of the Foot

43

Clinically, an ankle sprain is usually always what type of injury?

inversion: the lateral ligament is damaged by excessive or rapid inversion;
*most commonly the anterior talofibular ligament is sprained, maybe accompanied by a fracture of the fibula*