Audiophysiology is the term meaning sutdy of hte function of the structures of hearing, but I believe most people would use the term audiology.
Hypoacusis is the medical term meaning hearing loss.
-cusis is the medical terminology combining form meaning hearing.
The medical term for appendages or accessory structures of an organ is "adnexa".
Integumentary
Asonia is the medical term meaning: tone deafness. A person with this condition is referred to as "hearing impaired".
Hypothyroidism is a medical term meaning abnormally low thyroid function.
AdnexaAdnexaAdnexa
There is no special medical term meaning obscured by overlying osseous structures. The phrase means that something can't be seen well because of the bones between the structure of interest and the viewer.
fibers
Metabolism.
Undifferentiated means lacking structures typical in mature cells.
Renal function is the medical term meaning kidney function. Renal means pertaining to the kidney.