True or False: The primary muscles involved in respiration include the intercostal muscles.

The accurate response is that the statement is true. The intercostal muscles play a crucial role in the process of respiration. They are located between the ribs and are essential for expanding and contracting the thoracic cavity during breathing. During inhalation, the intercostal muscles contract, lifting the rib cage and allowing air to flow into the lungs. Conversely, during exhalation, these muscles relax, leading to a decrease in the thoracic cavity's volume and the expulsion of air from the lungs.

As for why it's important to understand this, the intercostal muscles are not only active during exercise or sleep; they consistently function during all phases of respiration. Misunderstanding their role can lead to an incomplete picture of how respiration operates in both resting and active states.