Lab 24 Pre-Lab

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T/F: the iliocostalis represents the lateral muscle group of the erector spinae

true

which of the following muscles would be most important in relation to a vaginal delivery? -bulbospongiosus, spinalis, quadratus lumborum, erector spinae

bulbospongiosus

the four muscles of the abdominal wall

contain muscle fibers in four different directions

The abdominal wall muscles posses the following functions excepts -extend the spine, compress the abdominal visceral organs, assist in forceful exhalation, help maintain posture

extend the spine

T/F: the pelvic floor muscles are all arranged in a single superficial layer

false

anterior urogenital triangle and posterior anal triangle make up the

perineum

which of the following muscles is not part of the erector spinae group? -iliocostalis, spinalis, longissimus, & quadratus lumborum

quadratus lumborum

the abdominal muscle nearest the midline is the

rectus abdominis


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