Spaud 524 Midterm Exam 2024/2025 /complete Actual Exam Questions And Correct Answers (Verified Answers ) Already Graded A+

SPAUD 524 MIDTERM EXAM 2024/2025 /COMPLETE ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS ) ALREADY GRADED A+. What is a cleft? - ANSWER-An opening in the lip, alveolar ridge, hard palate, and/or soft palate Forms when there's failure of the tissues to fuse during early fetal development Describe the process and direction of embryological development of the lip and palate - ANSWER-~6-7 weeks gestation= incisive foramen - -> alveolus --> base of nose --> upper lip - 7-8 weeks= tongue begins to drop gradually ~8-9 weeks gestation= hard palate --> velum (soft palate) --> uvula Incisive foramen - ANSWER-Opening in the midline bone of the oral hard palate where blood vessels and nerves may pass. Starting point of embryological development of lip and palate Causes of a cleft - ANSWER-1. Genetic factors contribute to 20-50% of clefts - American Indians at highest risk 2. Environmental factors- Nutritionsal deficiencies/poor prenatal care (lack of appropriate folic acid - Infections (i.e., rubella) - Drugs (i.e., Valium, Dilantin) - Environmental toxins - Radiation Classifications of clefts: unilateral bilateral complete incomplete submucous - ANSWER-Unilateral: cleft only on one side Bilateral: cleft on both sides Complete: cleft that extends into the nose Incomplete: cleft that