Occluded or atresic may be used to mean closed, depending on the context.
Closed has the same meaning in medical terms as in lay language. A closed fracture means there is no related opening in the skin. A closed cervix does not have a dilated os.
Closed reduction is the medical term meaning aligning broken bones without surgery.
Syncope is the medical term meaning fainting.
Anacusis is the medical term meaning complete deafness.
Lamina is the medical term meaning layers.
Sensation is the medical term meaning feeling.
Eructation is the medical term meaning burping.eructation
Metastasize is the medical term meaning "to spread."
Stasis is the medical term meaning stopping.
Strabismus is the medical term meaning cockeye.
Atrophy is the medical term meaning shrinking.
Flexion is the medical term meaning bending