Arteries of lower extremity - PowerPoint Presentation

Slide1

Arteries of lower extremity

Superior

gluteal

artery

:

Branch of posterior div. of internal iliac artery

Enters the

gluteal

region through greater sciatic foramen passing above the

piriformis

.

In the foramen it divides into superficial & deep branches.

Superficial branch supplies gluteus max.

Deep branch subdivides into sup. & inf. branchesSlide2

Arteries of gluteal region

Inferior

gluteal

artery

Branch of ant. Div. of internal iliac artery

Enters

gluteal

region by passing through

greter

sciatic foramen below the

piriformis

.

It Supplies

Musular

branches

Cutaneous

branches to buttock & back of thigh

Articular

branch to hip joint

Artery to sciatic nerve

Cruciate

anastamotic

branch

Coccygeal

branchSlide3

Arteries of gluteal region

Internal

pudendal

artery

Branch of ant. Div of internal iliac

artey

Enters

gluteal

region through greater sciatic foramenSlide4

Trochanteric anastomosis

This

anastomosis

is a channel of communication between internal iliac and femoral arteries.

Situated near the

trochanteric

fossa

Supplies branches to head of femur

Inf. Div. of deep branch of sup.

Gluteal

artery

Ascending branch of medial circumflex femoral artery

Ascending branch of lateral circumflex femoral artery

Often the inf.

Gluteal

arterySlide5

Cruciate anastomosis

Situated at the level of lesser

trochanter

of femur

Formed by

Inferior

gluteal

artery

Medial femoral circumflex artery

Lateral femoral circumflex artery

First perforating artery, a branch of

profunda

femoris

arterySlide6
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Profunda femoris

Largest branch of femoral artery

Main artery of all three compartments of thigh

Arises from lateral side of femoral artery 4cm below

t

he inguinal ligament

Branches:

Medial circumflex femoral artery

Lateral circumflex femoral artery

4 perforating arteriesSlide12

Profunda femoris

& its branchesSlide13

Popliteal artery

Continuation of femoral artery

Begins at the opening in the adductor

magnus

Runs downwards &laterally to reach lower border of

popliteus

At that point it terminates by dividing into ant. &post.

Tibial

arteries

Branches

Muscular : supply adductor

magnus

& hamstrings ,terminate by

anastomosing

with 4

th

perforating arterySlide14

Popliteal artery

Cutaneous

: accompany small

saphanous

vein

Genicular

: 5 in number

2 superior: medial & lateral superior

genicular

arteries

2 inferior: medial & lateral inferior

genicular

arteries

1 middleSlide15

Anterior tibial artery

Smaller terminal branch

Passes into ant. Compartment by passing through gap in the upper part of

interosseous

membrane

Deep in the upper part of course

Supply adjacent muscles

Superficial in the lower part

passes behind the extensor

retinaculum

, has

ext.hallucis

longus

tendon on its medial side and deep

peroneal

nerve and extensor

digitorum

longus

on its lateral side

On entering the ankle region it becomes

dorsalis

pedis

arterySlide16

Anterior tibial artery

Branches

Muscular branches

Anastomotic

branches with branches of other arteries around knee and ankle joint

Vanea

commitantes

of anterior

tibial

artery joins with those of posterior

tibial

artery in the

popliteal

fossa

to form

popliteal

veinSlide17

Dorsalis pedis

artery

It terminates by passing downward into the sole between the two heads of 1

st

dorsal

interosseous

muscle

Joins lateral planter artery to form planter arch

Branches

Lateral tarsal artery

Arcuate

artery (gives off dorsal metatarsal artery)

1

st

dorsal metatarsal arterySlide18

Posterior tibial artery

Branches

Peroneal

artery

Muscular branch

Nutrient artery to tibia

Anastomotic

branch

circumflex fibular branch

malleolar

branch

calcaneal

branch

terminal branches

Medial & lateral planter arteriesSlide19
Slide20

Medial planter artery

gives off muscular to the adjoining muscles

3 small superficial digital branches

lateral planter artery

larger terminal branch

ends at the base of 5

th

metatarsal bone by continuing with planter arch

branches

1) muscular branches

2)superficial branches supplying skin &

3)

anastomotic

branches

4)

Calcaneal

branch Slide21
Slide22

Planter arch

Formed by direct continuation of lateral planter artery.

Completed medially by

dorsalis

pedis

artery

Extends from base of 5

th

metatarsal bone to the proximal part of 1

st

intermetatarsal

space

Lies between 3

rd

& 4

th

layer of sole

Accompanied by

vanea

commitantes

& deep branch of lateral planter nerveSlide23

Planter arch

Branches

4 planter metatarsal arteries

3 proximal perforating arteries

Communicate with the dorsal metatarsal arteries (branches of

arcuate

artery)

Distal end of each planter metatarsal artery gives of distal perforating arterySlide24
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