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  2. Topic
    Biology
  3. Study Set
    The Human Body
  4. Exam
    Exam 9: Muscular System
  5. Question
    This Muscle Separates the Thoracic and Abdominal Cavities and Is
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This Muscle Separates the Thoracic and Abdominal Cavities and Is

Question 15

Question 15

Multiple Choice

This muscle separates the thoracic and abdominal cavities and is also the chief breathing muscle.


A) serratus anterior
B) intercostal muscle
C) sternocleidomastoid
D) diaphragm

Correct Answer:

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