Final answer:
The blood pressure in the glomerulus is decreased, not increased, as a result of vasoconstriction of the afferent arteriole.
Step-by-step explanation:
The statement that blood pressure in the glomerulus can be increased by vasoconstriction of the afferent arteriole is false. When vasoconstriction of the afferent arteriole occurs, this actually reduces the flow of blood into the glomerulus and thereby decreases the glomerular filtration rate (GFR). The kidney regulates blood flow and GFR through mechanisms such as the myogenic response and the tubuloglomerular feedback involving the juxtaglomerular apparatus (JGA). Vasodilation would instead increase blood pressure in the glomerulus and is typically seen in response to reduced sympathetic stimulation or the presence of vasodilators such as nitric oxide (NO).