Segmental muscles are a type of muscle found in many animals, including humans. They are arranged in segments along the body and play a crucial role in movement and stability. These muscles help control the bending and twisting of the body, allowing for coordinated actions. In humans, segmental muscles include the intercostal muscles between the ribs and the abdominal muscles. These muscles work together to support posture and facilitate activities like breathing and bending. Their segmented arrangement allows for precise control over different body parts, contributing to overall mobility and function.