Which of the following tissue structures acts as a protective barrier for the passage of antigenic substances?
A) Gingival connective tissue
B) Alveolar bone
C) Junctional epithelium
D) Hemidesmosomes
C
Health Professions
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________ is a quality found in people with self-esteem. This type of behavior seeks to protect one's own rights while respecting those of others
A. Aggressiveness C. Assertiveness B. Offensiveness D. Emotion
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Closure of the semilunar valves and opening of the atrioventricular valves is associated with which heart sound?
a. S1 c. S3 b. S2 d. S4
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