Identify the combining form nas(o) with its closest definition.
A. Nose
B. Eardrum
C. Hearing
D. Cornea
The correct answer and explanation is :
The correct answer is A. Nose.
The combining form “nas(o)” is derived from the Latin word nasus, which means “nose.” In medical terminology, combining forms are used to form complex terms that describe various body parts, conditions, or processes. The prefix or combining form “nas(o)” specifically refers to the nose, and it is often seen in medical terms related to the nose, such as “nasal” (relating to the nose), “nasopharynx” (the upper part of the throat behind the nose), or “rhinosinusitis” (inflammation of the sinuses and nasal passages).
Here’s a breakdown of why the other options are not correct:
- B. Eardrum: The term associated with the eardrum is “myring(o),” derived from the Greek word myringa, meaning eardrum.
- C. Hearing: The combining form for hearing is “audi(o),” which comes from the Latin word audire, meaning to hear. Examples include “audiometry” (the measurement of hearing) and “auditory” (relating to hearing).
- D. Cornea: The combining form for the cornea is “kerat(o),” from the Greek word kerat-, meaning horn, which relates to the cornea’s horn-like structure. An example is “keratitis,” which refers to inflammation of the cornea.
The combining form “nas(o)” is used to build terms that are related to the structure, function, or pathology of the nose. Understanding combining forms like this is essential for interpreting medical terms correctly. The use of roots, prefixes, and suffixes is a fundamental aspect of medical terminology, as it allows healthcare professionals to communicate complex ideas in a standardized way. Therefore, “nas(o)” is closest in meaning to “nose,” making option A the correct choice.