APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -The dual regulation of both RBF and GFR is achieved by proportionate changes in the preglomerular resistance and is believed to be mediated by two mechanisms, tubuloglomerular feedback (TGF) and the renal myogenic response.

Detailed explanation-2: -The forces that govern filtration in the glomerular capillaries are the same as any capillary bed. Capillary hydrostatic pressure (Pc) and Bowman’s space oncotic pressure (i) favor filtration into the tubule, and Bowman’s space hydrostatic pressure (Pi) and capillary-oncotic pressure (c) oppose filtration.

Detailed explanation-3: -The possible effect of the sympathetic nervous system on the GFR or glomerular filtration rate is that by the activation of SNS; glomerular filtration rate usually decreases. All the essential blood vessels of the kidneys (including afferent and efferent arterioles) are typically innervated by sympathetic nerve fibers.