Plantar Surface of the Foot Flashcards Preview

Gross Anatomy 2 > Plantar Surface of the Foot > Flashcards

Flashcards in Plantar Surface of the Foot Deck (32):
1

Dorsal View of Foot

2

Ventral View of Foot

3

Deep Fascia of Foot

Thick central portion but weaker medially and laterally

4

Plantar aponeurosis

Superficial ligament formed by central portion of the deep fascia

Proximal attachment to Calcaneus. Divides into 5 bands distally - continuous with fibrous digital sheaths.

Vertical intermuscular septae: Medial, Central and Lateral compartments

5

Compartments of the Foot

Muscles of the Dorsum of the Foot (Purple)

Extensor Digitorum Brevis

Extensor Hallucis Brevis

6

Compartments of the Foot

Lateral Compartment (Orange)

Muscles of the little toe:

Abductor Digiti Minimi

Flexor Digiti Minimi Brevis

7

Compartments of the Foot

Central Compartment (Green)

Flexor Digitorum Brevis

Muscles associated with tendon of FDL (lumbricals and quadratus plantae)

Adductor Hallucis

8

Compartments of the Foot

Medial Compartment (Blue)

Muscles of the great toe:

Abductor Hallucis

Flexor Hallucis Brevis

9

Compartments of the Foot

Interossei (Pink)

Plantar and Dorsal Interossei

10

Foot - Layer 1

Abductor Hallucis (1)

Medial Tubercle of Calcaneus and flexor retinaculum to the medial base of the proximal phalynx

11

Foot - Layer 1

Flexor Digitorum Brevis (2)

Medial tubercle of calcaneus to the middle phalanges of the lateral 4 toes

12

Foot - Layer 1

Abductor Digiti Minimi (3)

Tubercle of Calcaneus to the lateral base of the proximal phalynx

13

Foot - Layer 2

Long flexor tendons to the toes

FDL and FHL

14

Foot - Layer 2

Lumbricals (*)

Tendons of FDL to the medial side of the dorsal tendon expansion

15

Foot - Layer 2

Quadratus Plantae (QP)

Medial and lateral surfaces of calcaneus to the lateral side of the FDL tendon

16

Foot - Layers 1 and 2

17

Foot - Layer 3

Flexor Hallucis Brevis

Cuboid and Lateral Cuneiform to both sides of the base of the proximal phalanx

18

Foot - Layer 3

Adductor Hallucis

Transverse head: Plantr ligament of MTP joints

Oblique head: Base metatarsals 2 and 4

Both go to the lateral side of the base of the proximal phalanx

19

Foot - Layer 3

Flexor Digiti Minimi Brevis (*)

Base of the 5th Metatarsal to the base of the proximal phalanx

20

Foot - Layer 4

Plantar Insterossei

3 of them

Bases and medial side of metatarsals 3-5 (unipennate) to the medial side of the proximal phalanx of 3rd-5th digit 

PAD - Plantar ADuct

21

Foot - Layer 4

Dorsal Interossei

4

Adjacent sides of metatarsals 1-5 (bipennate) to the 1st on medial side proximal phalanx of the 2nd digit and 2nd-4th on lateral side of proximal phalanx of 2nd-4th digits 

DAB - Dorsal ABduct

22

Foot - Layer 4

Tendons

Peroneus Longus (*)

Tibialis Posterior (TP)

23

Foot - Layers 3 and 4

24

Plantar Nerves

What are they?

Terminal branches of Tibial nerve, deep to the flexor retinaculum. They enter the foot deep to Abductor Hallucis.

25

Plantar Nerves

Medial Plantar Nerve

Between Abductor Hallucis and FDB

26

Plantar Nerves

Lateral Plantar Nerve

Between Layers 1 and 2. Deep and superficial branches. Deep branch between layers 3 and 4. 

27

Innervation of the Muscles of the Foot

Medial Plantar Nerve

Abuctor Hallucis

Flexor Digitorum Brevis

1st Lumbrical

Flexor Hallucis Brevis

S2, S3

28

Innervation of the Muscles of the Foot

Lateral Plantar Nerve

Everything that the Medial Plantar Nerve does not innervate

S2, S3

29

Cutaneous Innervation of the Foot

30

Plantar Arteries

What are they?

Terminal branches of the Posterior Tibial artery deep to the flexor retinaculum. They enter the foot deep to Abductor Hallucis.

31

Plantar Arteries

Medial Plantar Artery

Muscles of Hallux and overlying skin. Occasionally there is a Superficial plantar arch

32

Plantar Arteries

Lateral Plantar Artery

Initially between layers 1 and 2. 

Deep plantar arch between layers 3 adn 4. Deep plantar artery from dorsalis pedis.

Plantar metatarsal and digital artery.