Related Clues:

• Sculpted body parts
• Six-pack set
• What sit-ups strengthen
• Sch. attendance notation
• Belly muscles, for short
• Blood types, abbr.
• Situps tone them
• Apple's center
• Six-pack __
• Toning targets, at the gym
• Pec neighbors
• Relative of quads and delts
• Centre of an object
• Central or most important part of something
• Inner part