Make up a song or poem about the muscles in a certain part of the body, for instance along the pelvic region. Singing the song or reciting the poem repeatedly will help you to memorize the different muscles.
State the name of a muscle and at the same time contract it in your body. This is an effective way to connect the memory with a physical movement or sensation, engaging more parts of your brain and therefore creating a sturdier memory.
Utilize visual aids, such as flashcards, diagrams and charts to be able to see where the muscles are located.
Use acronyms that you can easily remember by substituting the letters for a phrase that is familiar to you. For instance, group sections together like the erector spinae muscles, which are the iliocostalis, longissimus and spinalis muscles. You can form an acronym for the words I.L.S. and remember it by thinking "I love sushi," or some other phrase you can remember easily. (See ref 1 under Posterior Muscles of the Trunk)
Enlist the aid of a fellow student in the class. Drilling each other on the regions and types of muscles will help you both memorize them.