Respiration - control of breathing

Respiration is controlled by the medulla oblongata. This stimulates the following changes that change berating:

Chemoreceptors: inform Brain of excess levels of co2 and insufficient levels of oxygen at the working muscles, and cause increases in respiration.

Herring-bruer: stretch receptors in the lungs. Cause lungs to recoil to a safe size by stimulating expiration.

Irritants: cause coughing to keep airway clear.

Proprioceptors: located in muscles and joints. They detect movement.

Stressors: detect emotional and pain stimuli and can control respiration, voluntary for a short time.