APPLIED RADIOLOGICAL ANATOMY

Detailed explanation-1: -Lymphatic capillaries have greater permeability than blood capillaries and can absorb large molecules such as proteins and lipids. 2. The endothelial cells on the wall of the lymphatic capillary lack basement membrane and are loosely attached to each other which makes the wall more permeable.

Detailed explanation-2: -The normal permeability of the lymphatics was studied with dyes of graded diffusibility. Their walls proved readily permeable for those highly diffusible pigments that the blood capillaries let through easily, but retained those that the latter retained.

Detailed explanation-3: -Lymphatic capillaries are much more permeable than blood capillaries. Proteins in the interstitial space that can’t enter the blood capillaries can enter the lymphatic capillaries with ease.

Detailed explanation-4: -Lymphatic capillaries (also called initial lymphatics) are blind-ended and highly permeable, because their basement membrane is discontinuous, and they are not covered by pericytes or lymphatic smooth muscle cells.