Dorsalis pedis artey Flashcards
What is the chief artery of the dorsum of the foot
Dorsalis pedis artery
What is the origin of the dorsalis pedis artery
Direct continuation of the anterior tibial artery
Where does the anterior tibial artery become the dorsalis pedis artery
In front of the ankle
How does the dorsalis pedis artery travel along the foot
Forward along the medial dorsum of the foot
Where does the dorsalis pedis artery terminate
Proximal end of the first intermetatarsal space
Where does the dorsalis pedis artery enter the sole of the foot
Between two heads of the first dorsal interosseous muscle
With which artery does the dorsalis pedis artery anastomose
Lateral plantar artery
Which muscle crosses the dorsalis pedis artery superficially
Extensor hallucis brevis
What is located deep to the dorsalis pedis artery
Ankle joint and tarsal bones
What is medial to the dorsalis pedis artery
Tendon of extensor hallucis longus (EHL)
What is lateral to the dorsalis pedis artery
First tendon of extensor digitorum longus (EDL)
What percentage of cases have a dorsalis pedis artery replaced by the perforating branch of the peroneal artery
0.14
Why might the dorsalis pedis artery be too large
To compensate for a small lateral plantar artery
Which two arteries form the malleolar arterial networks
Lateral and medial tarsal arteries
Where does the arcuate artery arise
Near the base of the second metatarsal
How does the arcuate artery travel
Laterally with slight convexity toward the toes
Which three arteries does the arcuate artery give rise to
Second, third, and fourth dorsal metatarsal arteries
How do the dorsal metatarsal arteries supply the toes
Each divides into two dorsal digital arteries
Which artery supplies the lateral side of the little toe
Lateral dorsal metatarsal artery
Where does the first dorsal metatarsal artery arise
Just before dorsalis pedis dips into the sole
How does the first dorsal metatarsal artery divide
Into dorsal digital arteries for the first and second toes
Which artery supplies the medial side of the big toe
Dorsal digital artery from first dorsal metatarsal artery
Where can the dorsalis pedis artery pulse be felt
Between the tendons of extensor hallucis longus and first tendon of extensor digitorum longus
In which patients is the dorsalis pedis artery pulse often palpated
Patients with vaso-occlusive diseases
Which disease is associated with dorsalis pedis artery pulse examination
Buerger�s disease
What percentage of people have a congenitally absent dorsalis pedis artery
0.14
Which artery should be palpated if the dorsalis pedis artery is absent
Posterior tibial artery
What is the clinical significance of dorsalis pedis artery pulse
Used to assess blood supply to the foot
What happens if the dorsalis pedis artery is absent
The posterior tibial artery should be checked
Where is the dorsalis pedis artery located in relation to the ankle
In front of the ankle
Which branch of the dorsalis pedis artery forms part of the lateral malleolar arterial network
Lateral tarsal artery
Which branch of the dorsalis pedis artery forms part of the medial malleolar arterial network
Medial tarsal artery
How does the first dorsal metatarsal artery contribute to toe circulation
Divides into dorsal digital arteries
Which artery connects the dorsalis pedis artery to the plantar circulation
Lateral plantar artery
Which space does the dorsalis pedis artery enter before the sole
First intermetatarsal space
Which muscle’s heads does the dorsalis pedis artery pass between before entering the sole
First dorsal interosseous muscle
What does the arcuate artery supply
Lateral edge of the foot and toes
Which artery supplies the adjacent sides of the first and second toes
First dorsal metatarsal artery
How does the dorsalis pedis artery assist in collateral circulation
Anastomoses with the lateral plantar artery
Why is the dorsalis pedis artery important clinically
Used to assess lower limb circulation
What is a variation of the dorsalis pedis artery in 14% of cases
Replaced by perforating branch of peroneal artery
What compensatory mechanism exists if the dorsalis pedis artery is too large
Compensates for small lateral plantar artery
Which artery provides a twig to the lateral side of the little toe
Lateral dorsal metatarsal artery
Which structure is deep to the dorsalis pedis artery
Tarsal bones
Which artery crosses the dorsalis pedis artery superficially from lateral to medial
Extensor hallucis brevis
What is the function of the lateral and medial tarsal arteries
Form malleolar arterial networks
What happens if the dorsalis pedis artery is absent
Other arteries compensate for blood supply
What is the significance of the first dorsal metatarsal artery
Supplies blood to first and second toes
What condition might lead to checking the dorsalis pedis artery pulse
Vaso-occlusive diseases
What is a key landmark for palpating the dorsalis pedis artery pulse
Between EHL and first tendon of EDL
