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.
In prokaryotes, the small subunit (30S) and the large subunit (50S) together make the 70S ribosome. The 30S subunit is composed of 21 ribosomal proteins and 16S rRNA. Its function is to decode and decipher mRNA to determine the corresponding amino acid to the three bases in codons.