Cervical stenosis is a narrowing of the spinal canal which protects the spinal cord.atients who present with symptoms suggestive of cervical stenosis are usually worked up with a neurological evaluation and a CT scan or MRI scan. An MRI scan is particularly good at evaluating the spinal canal, the spinal cord and the nerves coming and going from the spine.
The ribosome itself is highly complex. It is made up of dozens of distinct proteins (the exact number varies a little bit between species) as well as a few specialized RNA molecules known as ribosomal RNA (rRNA). Note â these rRNAs do not carry instructions to make specific proteins like mRNAs.
The S in the subunit names is a unit of measure and stands for the Svedberg unit. Protein Synthesis. The main job of the ribosome is to make proteins for the cell. There can be hundreds of proteins that need to be made for the cell, so the ribosome needs specific instructions on how to make each protein.These instructions come from the nucleus in the form of messenger RNA. Small subunit-The small subunit really isn't that small, just a bit smaller than the large subunit. 2  It is responsible for the flow of information during protein synthesis. 3  It is called the 40S in eukaryotic cells and the 50S in prokaryotic cells.