intercapitular vein vs vena

intercapitular vein and vena both are nouns.

Word	Noun	Adjective	Verb	Adverb
intercapitular vein	Yes	No	No	No
vena	Yes	No	No	No

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

intercapitular vein: veins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the foot
vena: a blood vessel that carries blood from the capillaries toward the heart

Other hypernyms of intercapitular vein include vein, venous blood vessel.

intercapitular vein (noun)	vena (noun)
veins connecting the dorsal and palmar veins of the hand or the dorsal and plantar veins of the foot	a blood vessel that carries blood from the capillaries toward the heart