During? inhalation, the? ________ muscles between the ribs pull the ribs up and out.
A) diaphragm
B) intercostal
C) phrenic
D) pleura
Answer: B
Explanation: A) The diaphragm is a muscle, but it is not between the ribs.
B) Correct! Inter- means "between," and cost/o- means "rib."
C) Phrenic refers to a nerve, not muscles.
D) The pleura is a membrane, not muscles.
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