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Anatomy & Histology · single question

What is the primary distinction between the growth theories of James Scott and Melvin Moss concerning facial and craniofacial development?

  1. James Scott emphasizes the role of soft tissue tension, while Melvin Moss focuses on muscular function
  2. Both scientists concur that muscular function is the primary driver of facial growth
  3. James Scott and Melvin Moss agree that function and tension have no bearing on facial bone growth
  4. Melvin Moss contends that facial growth is determined solely by genetics
Show answer and explanation

Correct answer: A. James Scott emphasizes the role of soft tissue tension, while Melvin Moss focuses on muscular function

James Scott's Nasal Septum Theory states that the nasal septum cartilage is the primary driver of midfacial growth — it's an intrinsic genetic theory. Melvin Moss's Functional Matrix Theory states that bones grow in response to the FUNCTIONAL DEMANDS of surrounding soft tissue matrices (muscles, nerves, vessels). So A correctly captures the essence: Scott focuses on intrinsic/genetic factors (not really 'soft tissue tension' per se but cartilage-driven), while Moss focuses on functional/environmental factors. B, C, D are all incorrect characterizations.

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