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
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
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
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
5
Q
- arises at the 4th proximal interspace and connects the 4th dorsal and plantar metatarsal arteries
A
Fourth Proximal Perforating Artery
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
7
Q
- arises at the distal 4th interspace and connects the 4th dorsal and plantar metatarsal arteries
A
Fourth Distal Perforating Artery
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
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
10
Q
- arises at the 3rd proximal interspace and connects the 3rd dorsal and plantar metatarsal arteries
A
Third Proximal Perforating Artery
11
Q
- arises at the 3rd distal interspace and connects the 3rd dorsal and plantar metatarsal arteries
A
Third Distal Perforating Artery
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
13
Q
- passes distally in the 2nd intermetatarsal space; passes dorsal to the deep transverse metatarsal ligament
A
Second Plantar Metatarsal Artery
14
Q
- arises at the proximal 2nd interspace and connects the 2nd dorsal and plantar metatarsal arteries
A
Second Proximal Perforating Artery
15
Q
- arises at the distal 2nd interspace and connects the 2nd dorsal and plantar metatarsal arteries
A
Second Distal Perforating Artery
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
