Asked by Ivannanda Falahandhika on Jul 29, 2024
Verified
Which structure anchors the thecal sac and conus medullaris to the coccyx?
A) Filum terminale
B) Denticulate ligaments
C) Pia mater
D) Cauda equina
Filum Terminale
A slender fibrous tissue thread that extends from the apex of the conus medullaris to anchor the spinal cord in the lower vertebral canal.
Thecal Sac
The protective covering of the spinal cord and its nerve roots, filled with cerebrospinal fluid.
Conus Medullaris
The tapered, lower end of the spinal cord that occurs near the first and second lumbar vertebrae.
- Comprehend the architecture of the spinal cord, with an emphasis on the conus medullaris and the fixation mechanisms that anchor the spinal cord.
Verified Answer
AA
Aleesha AbbasAug 01, 2024
Final Answer :
A
Explanation :
The filum terminale is a fibrous extension of the pia mater that anchors the thecal sac and conus medullaris to the coccyx, providing stability to the spinal cord within the vertebral column.
Learning Objectives
- Comprehend the architecture of the spinal cord, with an emphasis on the conus medullaris and the fixation mechanisms that anchor the spinal cord.