A&P Lab Quiz#4

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Author:
trulyabaker
ID:
52410
Filename:
A&P Lab Quiz#4
Updated:
2010-11-30 14:19:06
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Lab Quiz
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Questions to help with the lab exam
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  1. What is the linea alba?
    • - a band of tough connective tissue in the midline of the anterior abdominal wall
    • - it serves as a muscle attachment
  2. What is the rectus abdominus?
    a muscle that spans from the ribs and sternum to the pubic bones
  3. What is the transversus abdominis?
    this muscle forms the third layer (deepest layer) of the abdominal wall muscles
  4. What is the action of the external oblique muscle?
    to tense the abdomonial wall and compress abdominal contents
  5. What is the action of the rectus abdominis?
    to tense the abdominal wall and compress abdominal contents and flex the vertebral column
  6. What muscles together form the erector spine group?
    • - the three deep back muscle groups...
    • - the iliocostalis, longissimus, spinalis
  7. What forms the pelvic diaphram?
    the levator ani and coccygeus
  8. The levator ani provides a sphincterlike action in the what?
    in the anal canal and vagina
  9. What is the action of the coccygeus?
    to support pelvic viscera and and provide sphincterlike action in the anal canal and vagina
  10. What surrounds the base of the penis?
    the bulbospongiosus
  11. In femals what does the bulbospongiosus act to do?
    it acts to constrict the vagina and assist in erection of clitoris
  12. The ischiocavernosus extends from where to where?
    it extends from the margin of the pubic arch to the ischial tuberosisty
  13. In females, the levator ani muscles are separated by what?
    they are seperated by the vagina, urethra, and anal canal
  14. What is the action of the superficial transversus perinei?
    to support pelvic viscera
  15. The coccygeus extends from where to where?
    it extends from the coccyx and sacrum to the ischial spine
  16. What does the spincter urethrae assist in?
    it assists in closing the urethra

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