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.
Explanation:
The combining form “nas(o)” is derived from the Latin word nasus, which means “nose.” In medical terminology, combining forms are used to form words that describe body parts, conditions, or medical procedures. The combining form “nas(o)” specifically refers to anything related to the nose.
This form is commonly found in terms that describe the nose or its related structures and functions. For example:
- Nasal: Referring to the nose, such as in nasal cavity, which is the space within the nose.
- Rhinoplasty: A surgical procedure to reshape the nose. Here, “rhino-” is derived from the Greek word for nose, “rhinos,” but it has a similar meaning to “nas(o)”.
- Nasopharynx: The part of the pharynx (throat) that is located behind the nose, specifically the upper portion of the pharynx.
Understanding the root or combining form “nas(o)” helps in deciphering medical terminology related to the nose. For example, when a healthcare provider refers to a “nasal cannula,” they are referring to a medical device used for delivering supplemental oxygen through the nose.
The other answer choices do not match the definition of “nas(o)”:
- B. Eardrum: The eardrum is typically referred to by terms like “myring(o)” or “tympan(o).”
- C. Hearing: The term related to hearing is typically “aud(o)” or “acous(t).”
- D. Cornea: The cornea is referred to by terms like “kerat(o).”
In summary, the combining form “nas(o)” is most closely associated with the nose and is used in medical terminology to refer to various anatomical structures or conditions related to the nose.