Intermediate Muscles of the Abdominal Wall Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. What is the typical fiber direction of external oblique?
- Inferomedially
- Strictly vertically
- Horizontally only
- Superomedially
Q2. What is the typical fiber direction of the upper fibers of internal oblique?
- Superomedially
- Vertically downward only
- Inferomedially only
- Strictly horizontally
Q3. Between which two muscles does the main neurovascular plane of the lateral abdominal wall lie?
- External oblique and skin
- Transversus abdominis and parietal peritoneum only
- Internal oblique and transversus abdominis
- Rectus abdominis and linea alba
Q4. Which nerves provide most of the motor innervation to the anterolateral abdominal wall muscles?
- Phrenic nerves only
- Lower thoracic anterior rami and L1
- Vagus nerves only
- Femoral nerves only
Q5. Which muscle contributes to formation of the cremaster muscle and fascia?
- Internal oblique
- Pyramidalis
- Rectus abdominis
- External oblique
Q6. Which muscle does not contribute a muscular layer to the spermatic cord coverings?
- Internal oblique
- Transversus abdominis
- Transversalis fascia
- External oblique aponeurosis
Q7. What structure marks the lateral border of rectus abdominis on the anterior abdominal wall?
- Arcuate ligament of the diaphragm
- Linea semilunaris
- Linea alba
- Inguinal ligament
Q8. What are the transverse fibrous bands that interrupt rectus abdominis called?
- Tendinous intersections
- Pectineal ligaments
- Arcuate fibers
- Intercrural fibers
Q9. What happens when one external oblique contracts with the opposite internal oblique?
- They extend the knee
- They abduct the arm
- They produce coordinated trunk rotation
- They close the vocal folds
Q10. Why are the flat abdominal muscle aponeuroses important to the rectus sheath?
- They form the principal aponeurotic layers of the rectus sheath
- They become the diaphragm
- They form the femoral sheath
- They form the vertebral discs