BRAIN
SPINAL CORD
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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choroid plexus
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cauda equina
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corpus callosum
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optic chiasm
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Detailed explanation-1: -Cauda equina – The collection of nerves at the end of the spinal cord that resembles a horse’s tail. Cervical spine – The neck region of the spine consisting of the first seven vertebrae. Coccyx – More commonly known as the tailbone, this is a bony structure in the region of the spine below the sacrum.
Detailed explanation-2: -The most distal bulbous part of the spinal cord is called the conus medullaris, and its tapering end continues as the filum terminale. Distal to this end of the spinal cord is a collection of nerve roots, which are horsetail-like in appearance and hence called the cauda equina (Latin for horse’s tail).
Detailed explanation-3: -The cauda equina is a group of nerves and nerve roots stemming from the distal end of the spinal cord, typically levels L1-L5 and contains axons of nerves that give both motor and sensory innervation to the legs, bladder, anus, and perineum.
Detailed explanation-4: -The end of the spinal cord, known as the conus medullaris, extends relatively caudally in the horse; reaching the first sacral vertebra. It then becomes what is known as the filum terminale, which extends the spinal cord to reach the fourth sacral segment.