Unit 4- The Foot, Part 2 Flashcards
The saphenous nerve is a branch of the _____ nerve
It runs through the ____ ___
Femoral nerve
Adductor canal
Saphenous nerve supplies what cutaneous?
Skin and fascia of anteromedial leg
Dorsum of the foot anterior to the medial malleolus
Articular branches of the saphenous nerve
Go to ankle joint
Medial foot to head of 1st metatarsal
Superficial fibular nerve runs:
It divides into:
Then becomes:
Superficial to lateral compartment of the leg
Medial and intermediate dorsal cutaneous nerves
Dorsal digital nerves
Superficial fibular nerve supplies
Cutaneous for
Anterolateral leg
Dorsum of the foot
Dorsal digits (except for lateral 1st toe and medial 2nd toe)
Deep fibular nerve supplies (cutaneous)
Lateral 1st and medial 2nd toe
Deep fibular nerve supplies (motor)
Intrinsic muscles of the dorsum of the foot and torsometatarsal joints
What 2 nerves join to form the sural nerve?
Medial sural cutaneous and sural communicating branch (from common fibular nerve)
What does the sural nerve terminate as/
Lateral cutaneous nerve of the foot
Sural nerve supplies:
cutaneous:
Lateral and posterior inferior 1/3 of leg
Lateral part of foot
The medial plantar nerve is a terminal branch of the:
Tibial nerve
The medial plantar nerve arises (SUPERFICIAL/DEEP) to the flexor retinaculum and enters the sole deep to the:
Deep
Abductor hallicus
The medial plantar nerve runs anteriorly between:
Abductor hallicus and flexor digitorum brevis
Cutaneous supply of the medial plantar nerve
Medial sole of foot
Plantar surface of medial 3 1/2 digits
Motor supply of the medial plantar nerve
1st Lumbrical
Flexor hallucis brevis
More posterior branch of the tibial nerve
Lateral plantar nerve
The lateral plantar nerve runs (SUPERFICIAL/DEEP) to the abductor hallucis
It runs anteriorly between the:
Deep
1st and 2nd layers of plantar muscles medial to the plantar artery
The lateral plantar nerve divides into:
Superficial and deep branches
The deep branch of the lateral plantar nerve runs:
Between 3rd and 4th plantar muscle layers
Cutaneous supply of the lateral plantar nerve
Lateral sole of foot
Plantar surface of lateral 1/2 digits
Motor supply from lateral plantar nerve
Intrinsic foot muscles not done by the medial plantar nerve
What supplies the calcaneal branches? (7 branches)
Both sural (6) and tibial nerves
Major source of blood supply to the forefoot
Dorsal arteries of the foot
Direct continuation of the anterior tibial artery
Dorsalis pedis
Pathway of the dorsalis pedis
Begins midway between the:
Runs:
Malleoli
Runs anterior-medially deep to the inferior extensor retinaculum
Dorsal pedis runs between ____ and ___ tendons to the:
It then splits into the:
EHL and EDL
1st interosseous space
1st dorsal metatarsal and deep plantar artery
The deep plantar artery passes between the:
It joins the _____ ____ artery to form the:
Heads of the 1st interosseous
Lateral plantar artery to form the deep plantar arch
What splits top supply both sides of the great toe and medial 2nd toe?
1st dorsal metatarsal artery
The lateral tarsal artery is a branch of the _____ artery of the foot.
It runs laterally beneath the ___, and anastomoses with ____
Dorsal
EDB
Other branches
The arcuate artery crosses the bases of:
To reach:
It gives rise to:
And is connected to:
Lateral 4 metatarsals deep to extensor tendons
Lateral aspect of the forefoot
2nd, 3rd and 4th dorsal metatarsal artery
The plantar metatarsal arteries via perforator should
Each dorsal metatarsal artery divides into
2 dorsal digital branches
The posterior tibial artery divides _____ to the flexor retinaculum, forming ____ ____ which pass _____ to the abductor hallicus to form:
Deep
Terminal branches
Deep
Medial and lateral plantar arteries
The smaller of the 2 branches of the posterior tibial artery
Medial plantar artery
The medial plantar artery supplies (muscles)
Muscles to the great to (deep branches)
Medial plantar artery supplies (cutaneous)
Skin on the medial sole and digital branches (superficial)
Lateral plantar artery runs laterally and anteriorly between the _____ and ____ ___
FDB and quadratus plantae
Lateral plantar artery forms arches medially across the foot with what?
Deep branch of the lateral plantar nerve
What forms the deep plantar arch?
The lateral plantar artery with the deep planter artery (from dorsal artery of the foot)
Deep plantar arch gives rise to:
4 plantar metatarsal arteries, 3 perforating branches
Plantar metatarsal arteries provide:
Plantar digital arteries
These provide most of the blood to the distal toes
Venous drainage from the foot is primarily via the:
Superficial venous system
Deep veins accompany:
Arteries and are named for them
What drains to the medial part of the foot?
Superficial plantar venous network
Superficial plantar venous network forms:
The medial marginal vein which becomes the great saphenous vein
Lateral dorsal venous arch forms:
Lateral marginal vein which forms the small saphenous vein
Superficial and deep lymphs converge and travel with:
The great saphenous vein to the superficial inguinal nodes and from there drains centrally to the deep inguinal nodes
