Vessel
Inferior suprarenal artery
The usual renal-arterial contribution to the adrenal
High-yield
A renal origin is typical, but this contribution is only part of the adrenal arterial supply; adrenal and kidney are not dependent on one shared pedicle.
Overview
Inferior suprarenal branches commonly ascend from the renal artery toward the lower adrenal surface. Their number and origin vary, and they join a rich capsular arterial network supplied from other directions.
Reference facts
- Origin
- Usually from a renal artery or an early renal branch; accessory renal and other origins occur.
- Course
- Travels superiorly from the renal vascular region to the inferior adrenal capsule.
- Branches
- Divides into small capsular vessels that communicate with other suprarenal arterial branches.
- Supplies
- Contributes to adrenal perfusion, especially from the inferior aspect, with overlapping capsular supply.
- Drains to
- Blood leaves the adrenal microcirculation mainly through the principal suprarenal vein, with side-dependent venous drainage.
Clinical correlation
Variable branches cross the tissue plane between upper kidney and adrenal gland. Their anatomy matters when interpreting renal or adrenal vascular imaging and when preserving adjacent tissue during surgery.
Frequently asked questions
Where does the inferior suprarenal artery originate?
Usually from a renal artery or an early renal branch; accessory renal and other origins occur.
What does the inferior suprarenal artery supply?
The inferior suprarenal artery supplies the contributes to adrenal perfusion, especially from the inferior aspect, with overlapping capsular supply.
Where does blood from the inferior suprarenal artery go?
Blood leaves the adrenal microcirculation mainly through the principal suprarenal vein, with side-dependent venous drainage.
What are the branches of the inferior suprarenal artery?
Divides into small capsular vessels that communicate with other suprarenal arterial branches.