What is considered a deep respiration?

Deep respiration refers to the act of taking in a significant volume of air, which leads to the full expansion of the lung capacity. This involves engaging both the diaphragm and intercostal muscles, allowing the lungs to expand fully and the oxygen to be efficiently exchanged in the alveoli. Deep breathing is often associated with relaxation and can help to improve oxygen intake and carbon dioxide elimination in the body.

The other choices represent different types of breathing patterns that do not meet the criteria for deep respiration. Slow and shallow breaths indicate a restricted airflow and lower lung expansion, while rapid and shallow breaths signify a quick, inadequate intake of air. A normal breathing pattern, while necessary for health, does not necessarily denote the full expansion of the lungs associated with deep respiration. Thus, the correct answer emphasizes the importance of lung capacity and full expansion in defining what constitutes deep respiration.