sarcolemma vs tissue layer

sarcolemma and tissue layer both are nouns.

Word	Noun	Adjective	Verb	Adverb
sarcolemma	Yes	No	No	No
tissue layer	Yes	No	No	No

As nouns, tissue layer is a hypernym of sarcolemma; that is, tissue layer is a word with a broader meaning than sarcolemma:

sarcolemma: an extensible membrane enclosing the contractile substance of a muscle fiber
tissue layer: a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants

Other hypernyms of sarcolemma include membrane.

sarcolemma (noun)	tissue layer (noun)
an extensible membrane enclosing the contractile substance of a muscle fiber	a pliable sheet of tissue that covers or lines or connects the organs or cells of animals or plants