Aponeurosis
The external abdominal obliques are on both sides of your torso. They run diagonally from external surfaces of ribs 5-12 (origin) to the anterior illiac crest and abdominal aponeurosis (insertion).
sarcolemma
sarcolemma
rectus abdominis
rectus abdominis
Internal Intercostals
Total Internal Reflection
The cat's muscle fibers run perpendicular to its internal oblique muscles. The fibers of the external oblique muscles run opposite of the muscles.
Type I (red) muscle fibers, which have slow oxidative characteristics, are those primarily called on for long-distance running. These are more commonly referred to as 'slow-twitch' muscle fibers.
The internal capsule is the major structure carrying ascending and descending nerve projection fibers to and from the cerebral cortex
Slow, fatigue-resistant fibers
Transversus abdominis