These include barium swallow, barium meal, barium follow-through, and barium enema. The barium swallow, barium meal, and barium follow-through are together also called an upper gastrointestinal series (or study), whereas the barium enema is called a lower gastrointestinal series (or study).
There are two kinds of prepositional phrases: adjective phrases and adverb phrases. An adjective phrase modifies a noun or pronoun. It always comes immediately after the noun or pronoun it modifies: 1  Joe is the student with the highest grade.( 2 with the highest grade modifies student.).n adverb phrase modifies a verb, adjective, or adverb. It is used to tell when, where, how, or to what extent about the word it modifies: 1  Megan put her bird in its cage.
Adverb Phrases. The only grammatical form that can appear in an adverb phrase in English is another adverb phrase. Adverb phrases are phrases with an adverb functioning as the head of the phrase plus any other adverbs functioning as adverb phrase modifiers. Adverb phrases perform the grammatical function of adverb phrase modifier within adverb phrases.