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Stack #60676, week 8

Stack #60676, week 8 muscles

muscleorigininsertionactionnerve
Semispalis capitis transverse processes of f T1- T6 or T7 and C7 vertebrae; articular processes of C4, C5, and C6 occipital bone acting together, extend head; acting singly, rotate head to side OPPOSITE contracting muscle cervical and thoracic spinal nerves
Semispinalis cervicis transverse processes of superior 5 or 6 thoracic (T1-T5 or T6) spinous processes of C1 to C5 acting together, both semispinalis cervicis and both semispinalis thoracis muscles extend vertebral column of their region, acting singly, rotate head to side OPPOSITE contracting muscle cervical and thoracic spinal nerves
Semispinalis thoracis transverse processes of T6 to T10 spinous processes of superior 4 thoracic and last 2 cervical vertebrae acting together, both semispinalis cervicis and both semispinalis thoracis muscles extend vertebral column of their region, acting singly, rotate head to side OPPOSITE contracting muscle thoracic spinal nerves
Rectus abdominus pubic crest and pubic symphysis cartilage of 5-7 ribs and xiphoid process flexes vertebral column, especially lumbar portion, compresses abdomen to aid in defacation, urination, forced eshalation, and childbirth thoracic spinal nerves T7-T12
Transversus abdominus iliac crest, inguinal ligament, lumbar fascia, and cartilages of inferior 6 ribs xiphoid process, linea alba, and pubis compresses abdomen thoracic spinal nerves T8-T12, iliohypgastric nerve and ilioinguinal nerve
Created by: sandy