Regarding inhalation and exhalation: To inhale: the [interco…
Regarding inhalation and exhalation: To inhale: the [intercostal] muscles and the [diaphragm] contract. The volume of the thoracic cavity [increases]. The pressure in the thoracic cavity [decreases]. Air moves into the lungs. Air moves from an area of [higher] pressure to an area of [lower] pressure. To exhale: the muscles relax, the volume of the thoracic cavity [decreasesa], the pressure [increasesa] and air moves out.
Read DetailsMany people consider sports to be different from other forms…
Many people consider sports to be different from other forms of entertainment (i.e., movies, television, music, etc.), and the book discusses several such distinctions. According to the text, what is the most important difference, especially for African Americans and members of other minority groups? Why is that difference so important? In addition, explain at least one other difference discussed in the book.
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