vena tibialis vs vena

vena tibialis and vena both are nouns.

Word	Noun	Adjective	Verb	Adverb
vena tibialis	Yes	No	No	No
vena	Yes	No	No	No

As nouns, vena is a hypernym of vena tibialis; that is, vena is a word with a broader meaning than vena tibialis:

vena tibialis: veins of the lower leg; empty into the popliteal vein
vena: a blood vessel that carries blood from the capillaries toward the heart

Other hypernyms of vena tibialis include vein, venous blood vessel.

vena tibialis (noun)	vena (noun)
veins of the lower leg; empty into the popliteal vein	a blood vessel that carries blood from the capillaries toward the heart