Question

multiple choice question
the ____ allows plasma and its dissolved substances to be filtered while restricting the passage of large structures, such as formed elements.
o endothelium of glomerulus
o visceral layer of glomerular capsule
o basement membrane of glomerulus

Explanation:

The basement membrane of the glomerulus acts as a filter. It has a negatively - charged glycoprotein matrix. Plasma and its dissolved substances (small - sized molecules) can pass through it, while large structures (like formed elements such as blood cells and large proteins) are restricted. The endothelium of the glomerulus has fenestrations (pores) but alone does not have the property of restricting large structures as effectively as the basement membrane. The visceral layer of the glomerular capsule (podocytes) has filtration slits but the main filtering barrier for restricting large structures along with allowing plasma filtration is the basement membrane.

Answer:

basement membrane of glomerulus