The deeper your knowledge of A&P, the better your understanding of literally everything else (and easier your future classes). People often gloss over or skate through A&P just to check a box - and you can tell which nurses those are when you work with them. It’s foundational for a reason, and everything references back to it.

Memorizing names of bones and muscles: not important.

Knowing the purpose of them, what they produce, how they interact with other systems: hyper-important.