The Foot - Plantar

Question 1

Cutaneous Innervation of plantar surface

Answer 1

Saphenous
Lateral dorsal cutaneous
Calcaneal branches
Medial plantar
Lateral plantar

Question 2

Calcaneal branches supply

Answer 2

heel area

Question 3

Medial plantar suplies

Answer 3

medial 3 1/2 digits

Question 4

Lateral plantar supplies

Answer 4

lateral 1 1/2 digits

Question 5

Deep Fascia

Answer 5

Thicker than dorsal side

Question 6

Thickening of plantar fascia

Answer 6

Flexor retinaculum

Question 7

Plantar aponeurosis - deep fascia

Answer 7

Central part of deep fascia
Very thick and strong - prevents injury and supports arches of foot
Longitudinally arranged fibers
Goes from calcaneus to toes

Question 8

Plantar aponeurosis divides into

Answer 8

five slips - one for each toe that attaches to fibrous digital sheaths

Question 9

Vertical septa from plantar aponeurosis

Answer 9

divide foor into 3 compartments

Medial, lateral, central

Question 10

Muscles

Answer 10

4 layers of muscles

Help maintain balance and support arches of foot

Question 11

First layer

Answer 11

3 muscles
Abductor hallucis
Flexor digitorum brevis
Abductor digiti minimi

Question 12

Abductor hallucis

Answer 12

First

Tuberosity of calcaneous - base of 1st proximal phalanx

Question 13

Flexor digitorum brevis

Answer 13

First

Tuberosity of calcaneous - middle phalanx of lateral 4 toes

Question 14

Abductor digiti minimi

Answer 14

First

Tuberosity of calcaneous - base of 5th proximal phalanx

Question 15

Second layer

Answer 15

Flexor digitorum longus tendons
Flexor hallucis longus tendon
Quadratus plantae
Lumbrical muscles (4)

Question 16

Quadratus plantae

Answer 16

Second

Calc - Tendon of FDL

Question 17

Lumbricals

Answer 17

Second

Tendon of FDL - flexor sheath of lateral 4 toes

Question 18

Third Layer

Answer 18

Flexor digiti minimi brevis
Adductor hallucis - oblique and transverse heads
Flexor hallucis brevis

Question 19

Flexor digiti minimi brevis

Answer 19

Third

Base of 5th metatarsl - 5th proximal phalanx

Question 20

Adductor hallucis - oblique head

Answer 20

Third

Base of met 2-4 – base 1st prox phalanx

Question 21

Adductor hallucis - transverse head

Answer 21

MP joint ligaments - base 1st proximal phalanx

THird

Question 22

Flexor hallucis brevis

Answer 22

cuboid - base 1st proximal phalanx

Third

Question 23

Fourth layer

Answer 23

Peroneus longus tendon
Tibialis post tendon
Plantar interossei muscles (3)
Dorsal interossei muscles (4)

Question 24

Plantar interossei muscles

Answer 24

Base metatarsals 3-5 –> base proximal phalanx of toes 3-5

Fourth

Question 25

Dorsal interossei muscles

Answer 25

Adjacent sides 1-5 metatarsals --> proximal phalanx of 2-4 toes

Question 26

Nerves

Answer 26

Tibial Sural Saphenous

Question 27

Tibial gives what branches

Answer 27

Medial calcaneal Medial plantar nerve Lateral plantar nerve

Question 28

Medial calcaneal

Answer 28

supplies sensory innervation to heel | branch of tibial

Question 29

Medial plantar nerve

Answer 29

1. Larger than lateral 2. btw 1st and 2nd layer 3. passes deep to abductor hallucis brevis 4. Divides into 3 common plantar digital nerves - each of those gives rise to two proper plantar digital nerves

Question 30

Medial plantar nerve supplies

Answer 30

``` cutaneous branch to 3 1/2 digits motor to --> abductor hallucis FDB FHB 1st lumbrical ```

Question 31

Lateral Plantar nerve

Answer 31

Passes deep to abductor hallucis Provides cutaneous branches to lateral 1 1/2 digits Provides 1 common plantar digital nerve Provides moto branches to rest of intrinsic muscles

Question 32

Sural Nerve

Answer 32

Sensory to lateral margin of foot and lateral side of 5th toe

Question 33

Saphenous Nerve

Answer 33

branch of femoral nerve | sensory to medial side of phoot

Question 34

Arteries of sole of foot are from

Answer 34

Posterior tibial - medial and lateral plantar arteries - supply plantar muscles - Anastomose with arteries of dorsum of foot

Question 35

Medial Plantar Artery

Answer 35

smaller than lateral passes btw abductor hallucis and FDB Supplies medial side of great tow (first proper plantar digital artery)

Question 36

Lateral Plantar Artery

Answer 36

Runs obliquely across foot to lateral side At base of 5th metatarsal it passes medial side On medial side it joins deep plantar branch of dorsalis pedis to complete plantar arch

Question 37

Deep plantar artery procides

Answer 37

four plantar metatarsal arteries

Question 38

Each plantar metatarsal artery divides into

Answer 38

2 proper plantar digital arteries that supply adjacent sides of each toe

Question 39

The first proper plantar digital artery usally originates either from

Answer 39

first metatarsal or from medial plantar artery

Question 40

WHat is usually terminal branch of lateral plantar artery

Answer 40

10th proper plantar digital