Question

Which of the following will increase renal filtration i.) decreasing the radius of the afferent arteriole ii.) increasing the radius of the afferent arteriole iii.) decreasing the radius of the efferent arteriole iv.) increasing the radius of the efferent arteriole v.) increasing the blood pressure vi.) decreasing the blood pressure. A.) i, iv and v B.) ii, iii and v C.) ii, iv and vi D.) i, iii and vi E.) ii, iii and vi

Answer 1

Q) Which of the following will increase renal filtration i.) decreasing the radius of the afferent arteriole ii.) increasing the radius of the afferent arteriole iii.) decreasing the radius of the efferent arteriole iv.) increasing the radius of the efferent arteriole v.) increasing the blood pressure vi.) decreasing the blood pressure. A.) i, iv and v B.) ii, iii and v C.) ii, iv and vi D.) i, iii and vi E.) ii, iii and vi

Answer- B- ii, iii and v

Explanation- During Renal filtration process blood enters into the afferent arteriole and flows into the glomerulus , where filterable blood components like water, nitrogenous wastes are removed and non-filterable components like cells and serum albumin goes out by the efferent arterioles.

Increase in blood volume and increase in Blood pressure increases the GFR or Glomerular filteration rate.

Vasodilation of afferent arteriole that is increase in radius of afferent arteriole and vasoconstriction of efferent arteriole, that is decrease in diameter of efferent arteriole increases the blood flow and hydrostatic pressure in glomerulus as a result they increase the renal filtration rate.