Beginner Arachnoid Mater Quiz

Q1. Which meningeal layer lies immediately deep to the dura mater around the spinal cord?

• Pia mater
• Arachnoid mater
• Endosteum
• Periosteum

Q2. Which meningeal layer lies directly deep to the arachnoid mater?

• Pia mater
• Dura mater
• Posterior longitudinal ligament
• Ligamentum flavum

Q3. What space lies between the arachnoid mater and pia mater?

• Subarachnoid space
• Epidural space
• Intervertebral foramen
• Subdural space

Q4. What fluid normally occupies the spinal subarachnoid space?

• Bile
• Lymph only
• Cerebrospinal fluid
• Synovial fluid

Q5. Which structures cross the subarachnoid space between arachnoid and pia?

• Arachnoid trabeculae
• Ligamenta flava
• Intervertebral discs
• Annular ligaments

Q6. At approximately which vertebral level does the spinal dural and arachnoid sac usually end in adults?

• L1
• T12
• C7
• S2

Q7. What is the enlarged subarachnoid space below the end of the spinal cord called?

• Lumbar cistern
• Epidural cistern
• Cervical sinus
• Sacral hiatus

Q8. Which structures are suspended in cerebrospinal fluid within the lumbar cistern?

• Lumbar vertebral bodies
• Thoracic sympathetic trunks
• Cauda equina and filum terminale internum
• Spinal cord only without nerve roots

Q9. Is the arachnoid mater normally closely adherent to the pia mater?

• No, they are separated by the subarachnoid space
• Yes, they are fused throughout
• Yes, except inside vertebral bodies
• No, because dura lies between them

Q10. Which meningeal layer does not closely follow every contour of the spinal cord surface?

• Pia mater
• Periosteum
• Arachnoid mater
• Endosteum