The external oblique muscle in humans and pigs serves a similar function, primarily aiding in the rotation and lateral flexion of the torso. However, the pig's external oblique is generally more developed due to its role in supporting the animal's larger body mass and facilitating movement. Additionally, the orientation and attachment points of the muscle fibers may vary slightly between species, reflecting differences in anatomy and locomotion. Overall, while the basic function is conserved, adaptations exist to meet the specific needs of each species.
internal oblique opposes the external oblique
The inguinal ligament runs deep to the external oblique muscle.
External Oblique Internal Oblique Transversus Abdominis REctus Abdominis
run at an oblique angle to vertical direction of the spine.
internal oblique by an Anatomy student
From superficial to deep the mucsles are: external oblique internal oblique transversus abdominis
The external oblique muscles form the external lateral walls of the abdomen. These muscles run diagonally down and towards the midline of the body, aiding in movements like trunk flexion and rotation.
The external abdominal oblique is a broad, superficial muscle on the ventral abdomen.
External oblique, internal oblique, and transversus abdominis
The internal oblique muscles help with trunk rotation and bending, while the external oblique muscles assist with trunk flexion and rotation.
The function of the external oblique is to pull the chest downward and compress the abdominal cavity. In other words, it helps you bend over.
External Oblique