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Rectus abdominis muscle - Quiz
Rectus abdominis muscle
  • 1. What is the literal translation of 'rectus abdominis' from Latin?
A) Six-pack muscle
B) Ventral muscle
C) Segmented stomach
D) Straight abdominal
  • 2. What is the band of connective tissue that separates the paired rectus abdominis at the midline?
A) Linea semilunaris
B) Linea alba
C) Rectus sheath
D) Tendinous intersection
  • 3. Which connective tissue defines the lateral margin of the rectus abdominis?
A) Linea semilunaris
B) Rectus sheath
C) Linea alba
D) Tendinous intersection
  • 4. Where does the rectus abdominis attach superiorly?
A) Lumbar vertebrae
B) Iliac crest
C) Xiphoid process and 5th–7th ribs
D) Pubic symphysis and pubic crest
  • 5. What structures traverse the rectus abdominis to divide it into distinct muscle bellies?
A) Intercostal nerves
B) Tendinous intersections
C) Linea alba
D) Epigastric arteries
  • 6. What is the typical thickness of a rectus abdominis muscle in a non-athlete?
A) 20 mm
B) 5 mm
C) 10 mm
D) 30 mm
  • 7. What is the typical volume of the rectus abdominis in athletes?
A) 100 cm3
B) 800 cm3
C) 300 cm3
D) 500 cm3
  • 8. Which artery supplies the lower part of the rectus abdominis?
A) Internal thoracic artery
B) Superior epigastric artery
C) Intercostal artery
D) Inferior epigastric artery
  • 9. Which artery is a terminal branch of the internal thoracic artery that supplies the upper rectus abdominis?
A) Inferior epigastric artery
B) Superior epigastric artery
C) Deep circumflex iliac artery
D) Lumbar artery
  • 10. Which nerves innervate the rectus abdominis muscle?
A) Thoraco-abdominal nerves
B) Lumbar plexus nerves
C) Femoral nerves
D) Sciatic nerves
  • 11. The thoraco-abdominal nerves are continuations of which intercostal nerves?
A) T1-T5
B) T12-L2
C) T7-T11
D) L1-L5
  • 12. What is the sensory nerve supply for the rectus abdominis?
A) 5-7 thoracic nerves
B) Sacral nerves 1-2
C) Lumbar nerves 1-3
D) 7-12 thoracic nerves
  • 13. What structure contains the rectus abdominis muscle?
A) Linea alba
B) Linea semilunaris
C) Peritoneum
D) Rectus sheath
  • 14. What happens to the rectus abdominis when it is tensed?
A) It contracts into a single belly
B) It rotates laterally
C) It becomes thinner
D) It expands between each tendinous intersection
  • 15. The inferior epigastric artery enters the rectus fascia at which point?
A) Xiphoid process
B) Linea alba
C) Arcuate line
D) Pubic crest
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