Read, Read. Read. The more you read, the more exposure you'll have to correctly spelled words. Use Kurzweil or other TTS options to have your textbook/learning materials read aloud.
Review basic spelling rules. Here is a self-paced spelling course that might help.
Learn root words and prefixes/suffixes. Here is a link to Tallahassee State College’s Anatomy and Physiology Word Part List. Quizlet also has Anatomy/Physiology Word Part flashcards that might be helpful.
It is important to learn the spelling as you learn the material. (Try not to get the incorrect spelling of a word in your head.)
Use Kurzweil or Google to pronounce words and break the words into syllables.
Create flashcards, study aids, and practice spelling tests. Check out the Quizlet app—the paid version has a spelling feature.
Used spaced recall. Aim to write down each word from memory 3-5 times in your learning session and at least once the next day. Watch this short video for more details: How to Study Anatomical Terms YouTube
Meet with your Instructor for course-specific learning materials and tips.
Check out this Quick Spelling Tips YouTube. This 5-minute-long video reviews some of the previously mentioned tips.