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Z MD1 Hip and leg anatomy > foot > Flashcards

Flashcards in foot Deck (41):
1

what are the 3 retinacula of the foot

extensor lateral flexor

2

explain the attachments of the superior part of the extensor retinaculum

attaches to the anterior borders of the tibia and fibula

3

explain the attachments of the inferior part of the extensor retinaculum of the foot

extends from the medial malleolus and medial side of plantar aponeurosis to the superolateral calcaenous on the lateral side

4

what acronym is used to remember what structures pass beneath the extensor retinaculum

timothy had a nasty dirty toe

5

what structures pass beneath the lateral retinaculum

fibularis longus and brevis

6

explain the attachments of the superior band of the lateral retinaculum of the foot

extends from the lateral malleolus to the calcaneous

7

explain the attachments of the inferior band of the lateral retinaculum of the foot

attaches to the lateral calcaneous and then blends with the inferior band of the extensor retinaculum

8

explain the attachments of the flexor retinaculum

extends from the medial malleolus to the medial side of calcaneous

9

what acronym is used to remember which structures pass beneath the flexor retinaculum

tom dick and very naughty harry

10

the arches of the foot are held together by...

a combination of bony, ligamentous and muscular factors

11

the arches of the foot means that the standing weight is taken on which parts of the foot

the posterior part of the calcaneus and the metatarsal heads

12

which arches maintain the integrity of the foot

one transverse and 2 longitudinal arches

13

what are the 4 important structures of the dorsum of the foot

extensor digitorum brevis extensor hoods deep fibular nerve dorsalis pedis artery

14

explain what and where the extensor digitorum brevis is located

an intrinsic muscle of the dorsum of the foot that lies underneath the long flexor tendons arising from the top of the lateral aspect of the calcaneous and splits into a tendon for each of the digits

15

where does the extensor digitorum brevis tendons insert into the digits

joins the EDL tendon on its lateral side

16

which tendons contribute to the extensor hoods of the digits

EDL EHL EDB

17

explain the attachments of the extensor hoods

apex inserts into the base of the distal phalan base inserts more proximally centre - attaches to the side of the middle phalanx

18

what are the two branches of the dorsalis pedis artery

arcuate artery deep plantar artery

19

route of the arcuate artery

heads laterally across the dorsum of the foot and gives a series of metatarsal and digital arteries

20

route of the deep plantar artery

dives through the first dorsal interosseous and completes the deep plantar arch

21

how many layers are there beneath the plantar aponeurosis that make up the sole of the foot

4 short, long, short, short

22

what is the plantar aponeurosis

a thickening in the deep fascia in the sole of the foot

23

what are the attachments of the plantar aponeurosis

extends from the medial process of the calcaneal tuberosity, extends forwards over the sole of the food and dividing into 5 slips and inserts into the bones, ligaments and skin of the toes

24

what are the muscles of layer 1 of the sole of the foot

2 abductors (for big toe and little toe) and one flexor extending for the whole length of the sole of the foot

25

what is the flexor called that is part of layer 1 of the sole of the foot

flexor digitorum brevis

26

where do the abductors of layer 1 of the sole of the foot insert into

the base of the proximal phalanx

27

what muscles make up layer 2 of the foot

tibialis posterior FDL FHL lumbricals associated with FDL flexor accessorius

28

are the lumbricals medial or lateral to the toes

medial

29

what is the function of flexor accessorius

it is an accessory flexor muscle that optimises the function of FDL and straightens the line of pull for it

30

what are the muscles of layer 3 of the sole of the foot

short flexors for little toe and big toe adductor hallicus (these are short muscles)

31

what comprises layer 4 of the sole of the foot

3 plantar interossei (3,4,5) and 3 dorsal interossei (2,3,4)

32

which tnedons are associated with the interossei of the sole of the foot

the insertion of fibularis longus and tibialis posterior

33

in between which layers is the neurovascular structures of the foot situated

in between layers 1 and 2 (between the short and long layer)

34

the posterior tibial artery branches into..

medial and lateral plantar arteries

35

route of medial plantar artery

continues down the medial border of the sole of the foot

36

route of the lateral plantar artery

swings wide and creates a deep plantar arch on the sole of the foot

37

what two arteries make up the deep plantar arch

lateral plantar artery (branch of post tibial) deep branch of the dorsalis pedis

38

the tibial nerve splits into...

the lateral and medial plantar nerves

39

innervation of the lateral plantar nerve

supplies sensory to the lateral 1.5 finger and motor to almost all of the intrinsic muscles of the sole of the foot

40

innervation of the medial plantar nerve

supplies sensory to the medial 3.5 digits

41

name the following