Diaphragm increases volume of thoracic cavity in _________

Diaphragm increases volume of thoracic cavity in _________ Correct Answer anterior posterior axis

Radial muscles are present in diaphgram. By the contraction in these muscles, diaphragm becomes flattened in shape, so, volume of thoracic cavity increases in anterior posterior axis.

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Which of the following causes increase in the volume of the thoracic cavity during inspiration?