The x-ray of the spinal canal after the injection of a radiopaque dye is called:

A) cerebral angiography.
B) lumbar puncture.
C) myelogram.
D) ultrasonography.

Myelogram

An X-ray study of the spinal cord after injecting a contrast medium, used to diagnose spinal cord and vertebral column disorders.

Lumbar Puncture

A medical procedure where a needle is inserted into the lower part of the spinal column to collect cerebrospinal fluid for diagnostic or therapeutic purposes.

Cerebral Angiography

A medical imaging technique used to visualize the blood vessels in the brain, often used to diagnose and evaluate conditions like aneurysms and stenosis.