Renal blood flow is tightly regulated by several mechanisms to ensure stable kidney function:
1. Autoregulation: The kidneys can maintain constant RBF despite fluctuations in systemic blood pressure through mechanisms like the myogenic response and tubuloglomerular feedback. 2. Sympathetic Nervous System: Activation of the sympathetic nervous system can constrict renal arteries, reducing RBF during stress or hypovolemia. 3. Hormonal Control: Hormones such as angiotensin II, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP) play roles in the modulation of renal blood flow.
