Blood capillaries and lymphatic capillaries both transport fluids through diffusion and have single-layered endothelial walls, but they differ in size, permeability, and function. Blood capillaries have a uniform smaller diameter and transport oxygenated blood, while lymphatic capillaries have an irregular larger diameter and transport lymph fluid away from tissues. Lymphatic capillaries are also more permeable, have valves, and lack pericytes and basal lamina.

1. Compare And Contrast Blood
Capillary and Lymphatic Capillary

2. Similarity
1. Both are microscopic and
permeable
2. Both transport by using diffusion
process
3. The wall of both lymphatic and
blood capillaries is endothelium
4. Both are made of single sheet of
simple squamus epithelium

4. Deference
Blood capillaries
• Has uniform diameter
• Has smaller diameter
than lymphatic
capillaries/is very
thin(8-10µm)
Lymphatic capillaries
• Has no uniform
diameter/irregular
diameter
• Larger
diameter(average of 10
-80µm)

6. • Less permeable
• Carry blood
• Is reddish and easy
to observe
• More permeable
• Carry lymph
• Is colorless and
difficult to identify

7. • Has relatively high
pressure
• Present in Central
nervous system(CNS)
• The
endothelium/plasma
membrane is
fenestrated(has a
many hole)
• Relatively low
pressure
• Absent in central
nervous system
• The
endothelium/plasma
membrane is not
fenestrated

8. • Not blind ended, bind
with verule with one
end and with arteriole
with other.
• Blind ended(closed at
the tip)

9. • Has no valves • Has got valves these
prevent the opposite
movement of lymph

10. • Moves blood in two
ways(to a body & away
from body)
• Moves lymph one way
only(only away from
body)

11. • Is a place where
exchange of material
take place between
body and blood
• Picks the fluid leaks in
tissue and helps to
return to circulation
system

12. • There is basal lamina
and pericytes
• Both basal lamina and
pericytes are absent

14. • Present in superficial
in position under the
skin and mucosa
membrane
• Present more deeper
in position than
blood capillaries
Lymphatic
capillaries
Blood
capillaries