Describe how the air flow through our body
Nose / Mouth -> Trachea -> Bronchi -> Bronchioles -> Alveoli (Gas exchange in the lungs takes place)
What are the two main purpose of the gas exchange in the Alveoli
- Absorbing O2
- Releasing excess CO2
What are the two cycles that make up the circulatory system
- Systematic circulation
- Pulmonary circulation
What do you call the protein carried by red blood cells
Hemoglobin
What is the main breathing muscle?
Diaphragm
Symptoms of elevated CO2
Raised breathing volume and contractions, headache
What is Hyperventilation
inhaling and exhaling more air than you need to maintain a neutral level of CO2 in your blood
Negative Effects of Hyperventilation / What is wrong with decreasing CO2 level in your blood
- Raises the heart rate
- Reduces blood flow to the brain
- Increases the possibility of passing out without feeling the first signal of rising CO2
Symptoms of Hyperventilation
- Euphoria
- Tingling in the extremities
- Lightheadedness
- Dizziness
- Numbness around the mouth
- A metallic taste in the mouth
- Semi paralysis of the hands
What to do when you experience any symptom of Hyperventilation
Do not dive and resume your relaxation exercise until they go away
How can you safely prolong dives
- CO2 tolerance
- Relaxation & efficiency
Our breathing is regulated mainly by CO2. Explain
Because the build up of CO2 is what triggers the “urge to breathe”
