both of these terms refer to the bones of the spine. the spine is made up of 24 vertebrae (not including the sacrum and coccyx). each vertebra is smooth and rounded on the "front facing" side and has bony protrusions on the "back facing" side. when you run your hand down someone's back you feel those protrusions. each vertebra has a large hole in the center through which the spinal cord passes. each vertebra also has smaller holes (called foramina) through the sides which allow the roots of larger nerves to branch off from the spinal cord and extend into the rest of the body. "foraminal stenosis" refers to a narrowing of these smaller holes or channels in the sides of the vertebrae. often foraminal stenosis is caused by arthritis or bone spurs that basically clog up the channels and put pressure on the nerve roots. remember those bony protrusions i referred to earlier? those things help link the vertebrae together. each of them has two joints called "facets" that allow you to bend forward and backward. "facet arthropathy" refers to an arthritis of these facet joints. "bilateral" simply means arthritis affects the facet joints on both sides of each vertebra. i hope this helps!
what are the following medical terms: foraminal stenosis bilateral facet arthropathy?