COMBINING FORM MEANING lex/o mening/o, meningi/o my/o myel/o -ir narc/o -it neur/o -ki olig/o pont/o -ki -lep radicul/o -om spin/o syncop/o tax/o thalam/o thec/o e8t troph/o vag/o Ma des COL 1.Al 2.AL 4.MS PREFIX MEANING micro- her
The Correct Answer and Explanation is:
Here are the correct meanings for the combining forms listed in the image.
COMBINING FORM — MEANING
- lex/o — word, phrase
- mening/o, meningi/o — meninges (membranes covering the brain and spinal cord)
- my/o — muscle
- myel/o — spinal cord, bone marrow
- narc/o — numbness, stupor, sleep
- neur/o — nerve
- olig/o — scanty, few
- pont/o — pons (a part of the brainstem)
- radicul/o — nerve root
- spin/o — spine, backbone
- syncop/o — to cut off, cut short; syncope (fainting)
- tax/o — order, coordination
- thalam/o — thalamus (a part of the brain)
- thec/o — sheath (usually refers to the meninges)
- troph/o — nourishment, development
- vag/o — vagus nerve
The provided list contains combining forms primarily related to the nervous system and are foundational elements in medical terminology. A combining form is a word root plus a vowel, typically an “o,” used to connect it to other word parts to form a complete medical term.
Many of these forms identify specific anatomical structures. For example, neur/o refers to a nerve, the basic unit of the nervous system. Structures surrounding the nerves are also represented: mening/o signifies the protective meninges, spin/o indicates the spine, and myel/o points to the spinal cord. Within the brain, thalam/o identifies the thalamus, and pont/o specifies the pons. The form radicul/o is more specific, denoting a nerve root where it exits the spinal column. The term vag/o singles out the vagus nerve, a crucial cranial nerve.
Other combining forms describe functions, conditions, or quantities. The form lex/o relates to words or phrases, seen in conditions like dyslexia. Tax/o pertains to coordination and order, with its absence noted in the term ataxia (lack of coordination). Similarly, troph/o describes development and nourishment; its absence leads to atrophy (wasting away). Syncop/o refers to fainting, a sudden loss of consciousness. Narc/o is associated with states of stupor or sleep.
Finally, some terms are more general. My/o simply means muscle. Thec/o indicates a sheath, often the meningeal sheath around the spinal cord. The form olig/o is quantitative, meaning scanty or few, as in oliguria (scanty urine production). Understanding these components allows for the deconstruction and comprehension of complex medical vocabulary.
