Which is Avascular (Lacks Blood Vessels)

Question

Which is avascular (lacks blood vessels)?
A) Epithelial tissue
B) Muscle tissue
C) Nervous tissue
D) Connective tissue
E) All of the choices are correct.

Accepted Answer

Epithelial tissue is avascular, meaning it lacks blood vessels. It is nourished by diffusion from underlying tissues. Muscle, nervous, and connective tissues all have their own blood supply.