The walls of
the capillaries are made of single layer of cells called………..
a) epithelium
b) endothelium
c) epidermis
d) endodermis
The endothelium layer of capillaries are so thin that……..can pass through it.
a) water and nutrients
b) gases
c) blood cells
d) both a and b
CO2 and other waste materials can diffuse through the walls of capillaries from…….
a) blood
b) tissue fluid
c) organs
d) organ system
CO2 and other waste materials can diffuse through the walls of capillaries from tissue fluid into………….
a) blood
b) arteries
c) organs
d) organ system
A capillary is so thin that RBCs can pass through it in a………row/s.
a) single
b) double
c) triple
d) multiple
tissue,
capillaries unite to form small…….
a) venules
b) arterioles
c) veins
d) all of them
