Diving Physiology

Introduction to Diving Physiology Module

The Diving Physiology Module is designed to equip learners with a thorough understanding of how diving affects the human body. This course covers a range of critical topics essential for safe and effective diving practices, including:

• Circulatory System: Understanding the anatomy and physiology of the heart, blood flow, and the effects of immersion on cardiac output, including discussions on the patent foramen ovale (PFO).
• Respiratory System: Analyzing the structure and function of the lungs, physiological dead space, tidal volume, breathing rate, and respiratory minute volume. Learners will also explore breathing techniques, exertion effects, and the implications of breathing apparatus settings.
• Barotrauma: Examining how pressure changes can cause injuries to air spaces in the ears, sinuses, lungs, teeth, and gut.
• Gas Laws: Discussing Dalton’s and Henry’s Laws regarding gas solubility and pressure/volume relationships, as well as their health and safety implications during descent and ascent.
• Gas Toxicity: Identifying dangers associated with nitrogen narcosis, oxygen toxicity, carbon dioxide toxicity, carbon monoxide toxicity, helium tremors (HPNS), and hydrogen sulfide exposure.
• Decompression Sickness (DCS): Understanding the physiological effects of ascending too quickly and how to prevent DCS.
• Physiological Changes: Recognizing various physical, sensory, physiological, and psychological changes that occur in divers, including effects on vision, hearing, taste, touch sensitivity, balance, and proprioception.

Assessment

Learners will engage in group work to prepare presentations on these topics to demonstrate their understanding. This collaborative approach will help reinforce key concepts while preparing for assessments that focus on both theoretical knowledge and practical applications in diving physiology. By completing this module, participants will gain valuable insights into the complexities of diving physiology, enhancing their ability to dive safely and effectively.