<prompt> According to the myogenic hypothesis of renal autoregulation, the afferent arterioles contract in response to stretch induced byNO releaseNoradrenaline releaseOpening of Ca2 channelsAdenosine release  <response>: According to the myogenic hypothesis of renal autoregulation, the afferent arterioles contract in response to stretch by the opening of Ca2 channels, whereas, tubuloglomerular feedback is due to the opening of ligand-gated Ca2 channels by adenosine. 