Related Clues:

• Like some instinctive reactions
• __ feeling
• Ready to be totally remodeled
• Word with "check" or "reaction"
• "That's my ___ feeling"
• __ reaction
• Reaction location?
• Tug in intestine
• Thread from animal intestines
• Automatic response to a stimulus
• Part of the alimentary canal
• Movement in response to a stimulus
• Tug of the intestine
• Intestine, or the stomach
• Part of the digestive system