Question

multiple choice question
glomerular filtration regulation involves intrinsic control which could best be described as

hormone regulation

renal autoregulation

neural regulation

Explanation:

• Hormone regulation is an extrinsic factor (e.g., hormones like aldosterone from outside the kidney itself).
• Neural regulation (e.g., sympathetic nervous system) is also an extrinsic control.
• Renal autoregulation is an intrinsic mechanism. It is a property of the kidney itself that helps maintain a relatively constant glomerular filtration rate (GFR) despite changes in blood pressure. For example, the myogenic mechanism (smooth muscle in afferent arteriole responds to stretch - when blood pressure rises, the arteriole constricts to keep GFR stable) and tubuloglomerular feedback (macula densa cells in the juxtaglomerular apparatus sense changes in NaCl concentration in the tubular fluid and signal to adjust afferent arteriole diameter) are part of renal autoregulation.

Answer:

renal autoregulation