Since the renal veins empty into the large inferior vena cava, it is more reasonable for the smaller amount of venous blood flow from the testicle to use the renal vein (rather than empty directly into the inferior vena cava).
No. The gonads are drained by the gonadal veins. The left gonadal vein empties into the left renal vein (and further into the inferior vena cava) whereas the right gonadal vein empties directly into the inferior vena cava.
From the capillaries of the kidney, deoxygenated blood flows through the renal vein. The renal vein empties directly into the inferior vena cava which carries the blood back to the heart.
The renal papilla empties urine into the
The bladder empties into the urethra. The renal pelvis enters into the ureter. There is no kidney structure that empties into the urethra.
The renal pelvis is the structure in the kidney that empties into the ureter. It collects urine from the calyces and funnels it into the ureter for transport to the bladder.
Renal veins empty into the inferior vena cava
left
Peritubular capillaries
from the kidneys the renal vein blood goes to the inferior vena cava
renal
Each kidney has a renal lobe consisting of a renal pyramid with the renal cortex above it.
To drain blood from the kidneys into the (inferior) vena cava.