Use Case C to Answer the Following Questions

question 20

Multiple Choice

Use Case C to answer The Following questions
CASE C
A 12-year-old client with orthodontics has generalized healthy gingiva that is coral pink and stippled. The orthodontist has stated that the tooth movement is on schedule. Some recession is noted on the maxillary left canine and the first premolar. The first premolar demonstrates some mobility. Orthodontic tooth movement involves the function of the periodontal ligament, cementum, and alveolar bone.
-During orthodontic treatment, pressure applied to the periodontal ligament is intended to produce bone formation. Pressure on the periodontal ligament stimulates bone formation.

• A)Both statements are TRUE
• B)Both statements are FALSE
• C)The first statement is TRUE; the second statement is FALSE
• D)The first statement is FALSE; the second statement is TRUE

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Definitions:

Endoskeleton

An internal support structure of an organism, typical of vertebrates, providing physical support and protection for the body.

Urochordates

A subphylum of chordates; includes the tunicates.

Vertebrates

Animals that possess a backbone or spinal column, including fishes, amphibians, reptiles, birds, and mammals.

Hemichordata

A phylum of marine animals that share some traits with chordates, such as a dorsal nerve cord, but have distinct features like a stomochord.