Intermediate Multifidus Quiz

Q1. From which sacral structure does lumbar multifidus have an important inferior attachment?

• Anterior superior iliac spine only
• Pubic symphysis
• Ischial tuberosity only
• Posterior sacrum

Q2. Which lumbar vertebral processes provide important attachments for multifidus fascicles?

• Uncinate processes only
• Coronoid processes
• Costal cartilages
• Mammillary processes

Q3. From which thoracic vertebral structures does multifidus commonly arise?

• Vertebral bodies only
• Sternal facets
• Costal grooves
• Transverse processes

Q4. From which cervical structures does multifidus commonly arise?

• Mandibular rami
• First ribs only
• Articular processes
• Clavicles

Q5. Where do multifidus fascicles generally insert superiorly?

• Intervertebral discs only
• Spinous processes of superior vertebrae
• Rib angles exclusively
• Vertebral bodies below their origin

Q6. What is an important functional role of lumbar multifidus during movement?

• Forced expiration by depressing ribs
• Segmental stabilization of the lumbar spine
• Primary flexion of the hip
• Elevation of the scapula

Q7. Why is multifidus considered well positioned to control individual vertebral segments?

• It has one long tendon extending from pelvis to skull
• It acts only on the shoulder girdle
• Its short overlapping fascicles span limited vertebral levels
• It has no vertebral attachments

Q8. Which fascial structure overlies and helps enclose multifidus in the lumbar region?

• Palmar aponeurosis
• Transversalis fascia only
• Cribriform fascia
• Thoracolumbar fascia

Q9. How does multifidus compare with erector spinae in general architecture?

• Multifidus lacks skeletal muscle fascicles
• Both have identical architecture
• Multifidus forms longer longitudinal columns than erector spinae
• Multifidus has shorter oblique segmental fascicles

Q10. What sensory role is associated with deep intrinsic back muscles such as multifidus?

• Hearing
• Taste
• Proprioception
• Vision