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Skeletal Muscles of the Abdominopelvic Region

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  • Function of Rectus abdominis

    Flexes the vertebral column (bending forward) and compresses abdominal contents, aiding forced exhalation, coughing, and childbirth.

  • Role of External oblique muscle

    Rotates and laterally flexes the trunk and helps compress the abdomen.

  • Function of Internal oblique muscle

    Works with the external oblique to rotate and laterally flex the trunk and compress the abdomen.

  • Primary action of Transversus abdominis

    Compresses abdominal contents, provides trunk stability, and supports the abdominal wall.

  • Function of Iliopsoas (iliacus and psoas major)

    Flexes the hip joint and trunk, important for walking and sitting up.

  • Role of pelvic floor muscles (levator ani, coccygeus)

    Support pelvic organs, help control urination and defecation, and assist in childbirth.

  • Key functions of abdominopelvic skeletal muscles

    Enable trunk movement (flexion, rotation, lateral bending), compress and support abdominal organs, stabilize pelvis and lower back, and assist in breathing, urination, defecation, and childbirth.

  • Muscle important for forced exhalation and coughing

    Rectus abdominis compresses abdominal contents to aid forced exhalation and coughing.

  • Muscles involved in trunk rotation

    External and internal obliques work together to rotate the trunk.

  • Muscle providing core stability and abdominal wall support

    Transversus abdominis stabilizes the trunk and supports the abdominal wall.

  • Muscle group that flexes the hip joint

    Iliopsoas (iliacus and psoas major) flex the hip joint and trunk.

  • Muscles that assist in childbirth

    Rectus abdominis and pelvic floor muscles assist in childbirth.

  • Muscle action important for sitting up

    Iliopsoas flexes the trunk, aiding in sitting up.

  • Muscle group that helps control urination and defecation

    Pelvic floor muscles help control urination and defecation.

  • Muscle that compresses the abdomen and aids lateral bending

    External and internal obliques compress the abdomen and enable lateral trunk bending.

  • Importance of abdominopelvic muscles for posture

    These muscles are essential for posture and core stability.

  • Muscle that provides stability to the trunk

    Transversus abdominis provides trunk stability.

  • Muscle group supporting pelvic organs

    Pelvic floor muscles support pelvic organs.

  • Muscle action involved in lateral trunk flexion

    External and internal obliques laterally flex the trunk.

  • Muscle that compresses abdominal contents for forced exhalation

    Rectus abdominis compresses abdominal contents aiding forced exhalation.