All the following are true regarding blood supply to the kidney, except –
Correct Answer: The renal artery divides into five segmental arteries before entering the hilum
Description: Kidney has five independent vascular segments
Segmental arteries divide into lobar branches.
Area of kidney supplied by lobar artery → renal → includes 1-2 pyramids and the adjacent part of the cortex.
Branches of renal arteries are end arteries.
Renal blood passes through 2 sets of capillary plexus.
High-pressure bed (60 mmHg) of glomerular plexus for filtration.
Low-pressure bed (13mmHg) of peritubular plexus for selective reabsorption and nutrition.
These are connected by efferent glomerular arterioles which act as a renal portal system.
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Anatomy
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