Which statement is NOT true in regard to nerves: Nerves that supply the upper ex
ID: 45238 • Letter: W
Question
Which statement is NOT true in regard to nerves:
Nerves that supply the upper extremities arise from the cervical enlargement
Immediately below the cervical enlargement the spinal cord tapers to a conical portion (conus medullaris)
Nerves that supply the lower extremities arise from the lumbar enlargement
Cauda equina refers to roots of nerves angled inferiorly within the lumbar cistern
Both A & C
a.Nerves that supply the upper extremities arise from the cervical enlargement
b.Immediately below the cervical enlargement the spinal cord tapers to a conical portion (conus medullaris)
c.Nerves that supply the lower extremities arise from the lumbar enlargement
d.Cauda equina refers to roots of nerves angled inferiorly within the lumbar cistern
e.Both A & C
Explanation / Answer
Below the lumbar enlargement the spinal cord tapers to form a cone like region called the conus medullaris.
Conus medullaris is not a part of cervical enlargement.
Hence, the correct option is (b) immediately below the cervical enlargement the spinal cord tapers to a conical portion (conus medullaris).
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