The external oblique muscles originate from the fifth to the twelfth ribs. They are situated on the sides of the abdomen and play a crucial role in trunk rotation and lateral flexion. The fibers of these muscles run diagonally downward and medially, contributing to the overall structure and function of the abdominal wall.
Muscles that support the abdomen include the rectus abdominis, external obliques, internal obliques, and transversus abdominis. These muscles help stabilize the core, support the spine, and assist in movements like bending and twisting. Strengthening these muscles can improve posture, prevent back pain, and enhance overall athletic performance.
The external intercostal muscles raise the ribs during inhalation, while the internal intercostal muscles lower the ribs during exhalation in a fetal pig.
No, interchondral external intercostals do not exist. The external intercostal muscles are located between adjacent ribs and are involved in respiratory movements. However, there is no specific structure known as interchondral external intercostals.
There are 11 pairs of external intercostal muscles in humans. These muscles are located between the ribs and are involved in expanding the chest cavity during inhalation.
The structure of the ribs, with their curved shape and articulation with the spine and sternum, helps to protect vital organs like the heart and lungs from external forces. The flexibility of the ribs allows for expansion of the chest cavity during breathing, facilitating the inhalation and exhalation of air.
The internal obliques are muscles located underneath the external obliques. The external obliques are more superficial and run diagonally on the sides of the abdomen, while the internal obliques are deeper and run perpendicular to the external obliques. Both muscles help with twisting and bending movements, but the internal obliques also aid in breathing and trunk stability.
the main function of obliques is to help protect the heart as well as the ribs.
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).
fiber direction
External obliques are primarily considered to be in the frontal plane of motion. They are responsible for lateral flexion and rotation of the trunk.
External obliques
External Oblique Internal Oblique Transversus Abdominis REctus Abdominis
Around your rib cage. They are accessory muscles of inspiration and join ribs together diagonally
External Obliques
Around your rib cage. They are accessory muscles of inspiration and join ribs together diagonally
External and internal obliques Pectoral major Deltoids
External intercostal