Excluding capillaries in the central nervous system,the least permeable type of capillary is the
A)continuous capillary.
B)fenestrated capillary.
C)sinusoidal capillary.
D)occluding capillary.

Question

Quizplus · Accepted Answer

Continuous capillaries are the least permeable type of capillary due to their tight junctions between adjacent endothelial cells. This tight junction limits the passage of large molecules and cells. Fenestrated capillaries have small pores in their endothelial cells, allowing for more permeability, while sinusoidal capillaries have large gaps between their endothelial cells, allowing for even greater permeability. Occluding capillaries do not exist.

Excluding Capillaries in the Central Nervous System,the Least Permeable Type