Ben is going to have a spinal tap, which requires a needle to be placed carefully into his spinal column. You are told to put Ben into the left lateral recumbent position so that the doctor can
insert the needle into the correct place. How would you direct Ben to position himself for the
procedure in a way that he would understand? Also, explain why the doctor would not want Ben
to be in the supine position for this procedure.

A lumbar puncture (spinal tap) is performed in your lower back, in the lumbar region. During a lumbar puncture, a needle is inserted between two lumbar bones (vertebrae) to remove a sample of cerebrospinal fluid. This is the fluid that surrounds your brain and spinal cord to protect them from injury.

A lumbar puncture can help diagnose serious infections, such as meningitis; other disorders of the central nervous system, such as Guillain-Barre syndrome and multiple sclerosis; or cancers of the brain or spinal cord. Sometimes doctors use lumbar punctures to inject anesthetic medications or chemotherapy drugs into the cerebrospinal fluid.

Explanation:

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between the two muscle layers is the myenteric or auerbach's plexus, which controls peristalsis. in the colon, the muscularis externa is much thicker because the feces are large and heavy, requiring more force to push along. the stomach has a third layer of muscularis externa: the inner oblique layer.