Muces of layers of eblique Internal eblique abdominal muscles move the vertebral

Question

Muces of layers of eblique Internal eblique abdominal muscles move the vertebral column in wveral directions and are important respiratory muscles Perform Word Origins the following movements while your lab partner observes The names of the abdominal macles provide clues about thein 1 From the anatomical by bending forward at the waist. The rectus abdominis is the prime mover for flexion of the vertebral columa in the thoracic and lumbar regions. position, flex your vertebeal column orientation. Rectus comes from Latin and means "straight. The muscle fibers of rectus abdominis travel in a straight vertical path. Oblique also derives from Latin and means diagonal oe slanting. The fibers of the external and internal oblique muscles travel diagonally across the anterolateral Laterally Bex your vertebral column by bending to the the w ndeanis travel and means to turn across The fibers of transversus abdominis travel horizontally across the abdominal wall are actions of the Lateral flexion and rotation of the torso external and internal oblique muscles. 0 Sit or stand quietly with your fingers resting on the anterior wall of your abdomen. Breathe normally for a few cycles, then exhale forcefully. During the forced expiration. you will feel your rectus abdominis contract. Contractions of the rectus abdominis and the other abdominal wall muscles push abdominal organs up against the diaphragm, which. increases internal thoracic pressure and helps force air out of MAKING CONNECTIONS Speculate on the significance of the muscle fibers in the three oblique muscle layers traveling in different directions.

Explanation / Answer

Speculate on the significance of the muscle fibers in the three oblique muscle layers traveling in different directions.

EXTERNAL OBLIQUE

These muscle fibers run diagonally downward from lateral to medial. The rotation or lateral flexing of the trunk is taken care by contraction of only one side. When both sides contract, it flexs the trunk.

INTERNAL OBLIQUE

They run diagonally downward from medial to lateral. They have the same function as external oblique.

TRANSVERSUS ABDOMINIS

These are deep and the fibers run horizontally. This helps provide core support for the torso.

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.