Related Clues:

• They may be crunched at the gym
• Sit-ups work them
• Infomercial muscles
• Part of the sun
• "Six-pack" muscles
• "Washboard" body parts
• Subject of some infomercials
• Model's six-pack
• Tchr.'s notation
• Where a pear's seeds are
• Part of an apple
• Part of an apple or the earth
• Nuke's heart
• Muscles worked by crunches
• Focus of some gym reps