ARTERIAL DEFINITIONS Flashcards

1
Q
  • the posterior branch of the posterior tibial artery
  • usually larger than the medial plantar artery
  • passes anterolaterally toward the 5th metatarsal styloid process; dorsal to the flexor digitorum brevis muscle and plantar to the quadratus plantae muscle, intermediate to layers 1 and 2
A

Lateral Plantar Artery

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2
Q
  • a small lateral branch from the lateral plantar artery as the course turns sharply medial near the 5th metatarsal base
  • passes distally intermediate to the abductor digiti minimi muscle (plantar lateral) and flexor digiti minimi brevis muscle (dorsomedial); becomes more superficial near midshaft of the 5th metatarsal
  • terminates in the 5th toe where it supplies the toe’s plantar lateral aspect
A

(Proper) Digital Plantar Artery 10 / (Proper) Digital Plantar A. of Fifth Digit

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3
Q
  • the medially directed continuation of the lateral plantar artery
  • passes medially at the metatarsal bases, dorsal to the oblique head of adductor hallucis muscle and plantar to the interossei muscles
    • intermediate to layers 3 and 4
  • gives rise to 4 plantar metatarsal arteries and anastomoses with the deep plantar artery
A

Plantar Arterial Arch / Plantar Arch Artery

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4
Q
  • passes distally in the 4th intermetatarsal space; at the distal end it passes
    dorsal to the deep transverse metatarsal ligament
A

Fourth Plantar Metatarsal Artery

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5
Q
  • arises at the 4th proximal interspace and connects the 4th dorsal and plantar metatarsal arteries
A

Fourth Proximal Perforating Artery

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6
Q
  • passes to the medial aspect of the 5th metatarsal shaft and pierces it in its proximal one-third
A

Nutrient Artery to the 5th Metatarsal

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7
Q
  • arises at the distal 4th interspace and connects the 4th dorsal and plantar metatarsal arteries
A

Fourth Distal Perforating Artery

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8
Q
  • terminal divisions of the 4th plantar metatarsal artery
  • generally arise distal to the deep transverse metatarsal ligament
  • 9 supplies the medial plantar aspect of the 5th toe and 8 supplies the
    lateral plantar aspect of the 4th toe
A

(Proper) Digital Plantar Arteries 9 & 8

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9
Q
  • passes distally in the 3rd intermetatarsal space; passes dorsal to the deep
    transverse metatarsal ligament (DTML) at the distal end
A

Third Plantar Metatarsal Artery

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10
Q
  • arises at the 3rd proximal interspace and connects the 3rd dorsal and plantar metatarsal arteries
A

Third Proximal Perforating Artery

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11
Q
  • arises at the 3rd distal interspace and connects the 3rd dorsal and plantar metatarsal arteries
A

Third Distal Perforating Artery

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12
Q
  • terminal divisions of the 3rd plantar metatarsal artery
  • generally arise distal to the deep transverse metatarsal ligament
  • 7 supplies the medial plantar aspect of the 4th toe and 6 supplies the lateral plantar aspect of the 3rd toe
A

(Proper) Digital Plantar Arteries 7 & 6

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13
Q
  • passes distally in the 2nd intermetatarsal space; passes dorsal to the deep transverse metatarsal ligament
A

Second Plantar Metatarsal Artery

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14
Q
  • arises at the proximal 2nd interspace and connects the 2nd dorsal and plantar metatarsal arteries
A

Second Proximal Perforating Artery

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15
Q
  • arises at the distal 2nd interspace and connects the 2nd dorsal and plantar metatarsal arteries
A

Second Distal Perforating Artery

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16
Q
  • terminal divisions of the 2nd plantar metatarsal artery
  • generally arise distal to the deep transverse metatarsal ligament
  • 5 supplies the medial plantar aspect of the 3rd toe and 4 supplies the
    lateral plantar aspect of the 2nd toe
A

(Proper) Digital Plantar Arteries 5 & 4

17
Q
  • arises at the anastomosis of the deep plantar artery / 1st proximal perforating artery and the plantar arterial arch
  • passes distally in the 1st intermetatarsal space; passes dorsal to the deep
    transverse metatarsal ligament
A

First Plantar Metatarsal Artery

18
Q
  • arises at the distal 1st interspace and connects the 1st dorsal and plantar
    metatarsal arteries
A

First Distal Perforating Artery

19
Q
  • terminal divisions of the 1st plantar metatarsal artery
  • artery 3 supplies the medial plantar aspect of the 2nd toe and artery 2 supplies the lateral plantar aspect of the hallux
A

(Proper) Digital Plantar Arteries 3 & 2

20
Q
  • passes medially to anastomose with the proper digital plantar artery 1 / proper digital plantar artery of the hallux
A

Digital Branch of First Plantar Metatarsal Artery

21
Q
  • the anterior branch of the posterior tibial artery
  • usually smaller than the lateral plantar artery
  • enters the foot through the porta pedis intermediate to plantar layers 1 and 2
  • then passes along the medial aspect of the foot intermediate to the abductor hallucis and flexor digitorum brevis muscles; within the 1st layer
A

Medial Plantar Artery

22
Q
  • usually arises near the origin of the medial plantar artery
  • passes along the plantar aspect of the medial foot bones and supplies them - anastomoses with the plantar arch artery and the 1st plantar metatarsal artery
A

Deep Branch / ramus profundus

23
Q
  • appears as the direct continuation of the medial plantar artery and passes distally intermediate to the abductor hallucis (medial) and the flexor
    185 digitorum brevis (lateral) muscles; within the 1st layer
A

Superficial Branch

24
Q
  • the medial division of the superficial branch of the medial plantar artery
  • supplies the medial plantar aspect of the hallux
A

(Proper) Digital Plantar Artery 1 (of hallux)

25
Q
  • the lateral division of the superficial branch of the medial plantar artery
  • anastomoses with the 1st, 2nd and 3rd plantar metatarsal arteries
  • occasionally provides small proper digital plantar arteries which pass plantar to the deep transverse metatarsal ligament in addition to the normal metatarsal arteries and proper digital plantar arteries
A

Superficial Digital Branch