THORAX ABDOMEN AND PELVIS

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MEDICAL

NERVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The tail end of the spinal cord is not “hanging loose.” It is actually anchored via the ____, which connects to the coccyx bone.
A
cauda equina
B
filum terminale
C
conus medullaris
D
None of the above
Explanation: 

Detailed explanation-1: -The conus medullaris is tethered to the coccyx by a fibrous cord called the filum terminale, which stabilizes the distal end of the spinal cord.

Detailed explanation-2: -[4] The pia mater of the tapering end of the conus continues downward as the filum terminale, which is a delicate strand of fibrous tissue about 20 cm in length. This structure serves to stabilize the spinal cord by connecting the conus to the coccyx via the coccygeal ligament.

Detailed explanation-3: -The filum terminale (FT) is a fibrous band that extends from the conus medullaris to the periosteum of the coccyx, and its functions are to fixate, stabilize, and buffer the distal spinal cord from normal and abnormal cephalic and caudal traction.

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