Hydromyelia is a medical condition that involves widening of the intraspinal cavity or is a marked dilatation of the central spinal canal. The central canal of the spinal column is the main area of affectation that results to increased pressure due to fluid accumulation.
dangling participle - a participle (usually at the beginning of a sentence) apparently modifying a word other than the word intended: e.g., `flying across the country' in `flying across the country the Rockies came into view'.
The antecedentâthat is, the noun to which the participle refersâmust be clear to the readers in order for them to understand what's being said. Otherwise, an action may be subscribed to the wrong player, such as flitting to athletes. That's called a dangling participle, because it's left dangling without a clear antecedent. Just as with compound subject-verb agreement when or links two or more subjects (see above, #9), proximity shows the link between a participle and its antecedent in English.