Both the small incoming and outgoing bulbous arteries are arteries of the kidney, which differ in anatomy and function.
1. Anatomy: The small bulbous artery is a branch of the renal artery after it enters the kidney. The abdominal aorta divides into renal arteries, which are further divided into interlobular arteries, arcuate arteries, interlobular arteries, and bulbourethral arteries; the bulbourethral arteries branch out and anastomose into the glomerular capillary network, which then converge into the bulbourethral arteries, and then branch out to form the peritubular capillaries after leaving the kidneys, which are anastomosed with the veins again.
2. Functional aspects: the role of the small arteries into the glomerulus is mainly to discharge excess water and metabolites; the small arteries out of the glomerulus is mainly the filtered material into the renal capsule, the formation of primary urine into the renal tubule after remittance. Both play an important role in glomerular filtration.
To summarize, if glomerular filtration function is abnormal, you need to consult a doctor in time.