member vs external body part

member and external body part both are nouns.

Word	Noun	Adjective	Verb	Adverb
member	Yes	No	No	No
external body part	Yes	No	No	No

As nouns, external body part is a hypernym of member; that is, external body part is a word with a broader meaning than member:

member (noun)	external body part (noun)
an external body part that projects from the body	any body part visible externally
the male sex organ
an organization that is a member of another organization (especially a state that belongs to a group of nations)
one of the persons who compose a social group (especially individuals who have joined and participate in a group organization)
anything that belongs to a set or class