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Dorsalis pedis artery

Artery of the foot

Field	Value
Name	Dorsalis pedis artery
Latin	arteria dorsalis pedis
Image	Gray553.png
Caption	Anterior tibial artery, dorsalis pedis artery and the muscles and bones of the leg (anterior view).
Width	200
BranchFrom	Anterior tibial artery
BranchTo	First dorsal metatarsal artery, deep plantar artery
Supplies	Dorsal surface of the foot

In human anatomy, the dorsalis pedis artery (dorsal artery of foot) is a blood vessel of the lower limb. It arises from the anterior tibial artery, and ends at the first intermetatarsal space (as the first dorsal metatarsal artery and the deep plantar artery). It carries oxygenated blood to the dorsal side of the foot. It is useful for taking a pulse. It is also at risk during anaesthesia of the deep peroneal nerve.

Structure

The dorsalis pedis artery is located 1/3 from medial malleolus of the ankle. It arises at the anterior aspect of the ankle joint and is a continuation of the anterior tibial artery. It ends at the proximal part of the first intermetatarsal space. Here, it divides into two branches:

The first dorsal metatarsal artery
The deep plantar artery

It is covered by skin and fascia, but is fairly superficial.

The dorsalis pedis communicates with the plantar blood supply of the foot through the deep plantar artery. Along its course, it is accompanied by a deep vein, the dorsalis pedis vein.

Function

The dorsalis pedis artery supplies oxygenated blood to the dorsal side of the foot.

Clinical significance

Pulse

The dorsalis pedis artery pulse can be palpated readily lateral to the extensor hallucis longus tendon (or medially to the extensor digitorum longus tendon) on the dorsal surface of the foot, distal to the dorsal most prominence of the navicular bone which serves as a reliable landmark for palpation. It is often examined, by physicians, when assessing whether a given patient has peripheral vascular disease. It is absent, unilaterally or bilaterally, in 2–3% of young healthy individuals.

Ultrasound

The dorsalis pedis artery may be studied using ultrasound. Doppler ultrasound can be used to investigate blood flow.

Local anaesthesia

The dorsalis pedis artery is at risk when injecting anaesthetic into the deep peroneal nerve. Ultrasound can be used to help to avoid the artery. The injection site is just lateral to the artery.

References

(2012). "Lower Extremity Soft Tissue & Cutaneous Plastic Surgery". [[Saunders (imprint).
(2017). "Maxillofacial Surgery". [[Churchill Livingstone]].
(2002). "Dorsalis pedis arterial pulse: palpation using a bony landmark". Postgraduate Medical Journal.
(1990). "The incidence of congenitally absent foot pulses". Annals of the Royal College of Surgeons of England.
(2014). "Practical Management of Pain". [[Mosby (publisher).

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

arteries-of-the-lower-limb

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