In the kidneys, autoregulation is primarily concerned with maintaining renal blood flow and glomerular filtration rate.
2 main techniques
1. Myogenic mechanism-as blood flow increases, the afferent arterioles are streched, they contract and subsequently reduce blood flow.
2. Tubuloglomerular feedback- as blood flow decrease the macula densa senses low BP and causes vasoconstriction of efferent arteriole and dilatation of afferent arteriole , thus increasing GFR.