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Department
Biological Sciences
Course
BIOC33H3
Professor
Stephen Reid
Semester
Summer

Description
Vertebrae: series of irregular bones separated by fibrocartilaginous tissue Muscles that move the vertebral coloumn: ERECTOR SPINAE- Functions to maintain posture and help an individual stand erect When teh left and right erector muscles contract, the vertebral column extends When only one side contract, it flexs to that side Organized into 3 groups: common tendinous insertion: posterior part of iliac creat, posterior sacrum and spinous processes of the lumbar vertebrae 1)iliocostalis:most lateral, 3 parts; cervical, thoracic and lumbar 2)longissimus group: medial to the iliocostalis, inserts on the transverse processes of the
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