Spinal cord vasculature

Question 1

ASA

Answer 1

Supply 2/3
Branches 🔜 sulcal arteries 🔜 anterior horn

Question 2

Radiular Atrey or radiculomedullary

Answer 2

Supply ASA
Origin from different level has own origin
1- C3 —arises from vertebral artery

2-C6 and C8 (≈ 10% of population lack 🚫 an anterior radicular artery in lower cervical spine

a) C6 🔜 deep cervical artery

b) C8 🔜 costocervical trunk

3- T4 or T5

4. artery of Adamkiewicz AKA arteria radicularis anterior magna

Question 3

artery of Adamkiewicz AKA arteria radicularis anterior magna

Answer 3

Main supply T 8 to conus
Pin 📍 left
Variant location ;
85% T9 to L2
75% T9 to T 12
15% T5 to T 8

Question 4

vasocorona

Answer 4

Anastomosis between ASA and PSA

Question 5

Arcade of Lazorthes

Answer 5

normal variant ASA join PSA at 📍 conus mediullaris