Muscles of vertebral Column

Question 1

Erector spinae

Answer 1

maintain posture so you can stand erect

• massive superficial muscle group (iliocostalis, longissimus, spinals groups
• sacrum to skull

Question 2

Transversospinalis group

Answer 2

deep to erector spinae; connect and stabilize vertebrae

Question 3

Muscles of Resperation

Answer 3

Diaphragm

External and internal intercostals

Question 4

Diaphragm

Answer 4

muscle fibers converge on central tendon aponeurosis

• contraction—–> compresses abdominopelvic cavity and expands thoracic cavity vertically
• 3 openings: caval, esophageal, and aortic

Question 5

External and internal intercostals

Answer 5

two layers between ribs

- muscles on a cow/pig (short/spare ribs)