The body part that is referred to by the term "nasal" is the nose. This includes anything around, in, or near the nose like the paranasal sinuses, nasal cavities, etc.
"Cranium" refers to the part of the skull that covers the brain, excluding the bones of the face and jaw.
What is the smallest complete living unit of the body
The medical term for washing the nasal sinuses is "nasal irrigation" or "nasal douche." It involves flushing out the sinuses with a saline solution to help alleviate congestion and improve breathing.
A polyp is the medical term for any overgrowth of tissue from the surface of a body organ.
Nasal lavage
Nasal refers to different things relating to the nose. One uses the term mostly for saying that they have nasal congestion (stuffy nose) or in dealing with a persons nasal passages.
The medical term for bloody nasal discharge is epistaxis.
This is called nasal irrigation.
Sinus lavage is the medical term meaning washing of nasal sinuses. Sinus lavage may be performed for therapeutic or diagnostic reasons.
The term for the part of the body that you cannot reach to scratch is "hard-to-reach area."
socks that are worn under stirrups.