Preclass activity 3

 

Where are central chemoreceptors located and what parameters do they monitor? How do they regulate the rate and depth of breathing?

The central chemo receptors located on the surface of the medulla.

·       It helps to monitor pH changes in the cerebral spinal fluid.

·       It functions as the most important factor regulating breathing rate.

 

 

Where are the peripheral chemoreceptors located and what parameters do they monitor? How do they work to regulate the rate and depth of breathing?

 

Peripheral chemo receptors are found in the aortic and carotid bodies. They respond to changes in blood chemistry, including fluctuations in pH, carbon dioxide (CO₂), and oxygen levels. When CO₂ concentration changes, it affects the blood pH, which is detected by these receptors. It’s play the important role in regulating respiratory and cardiovascular functions.

 

(Not directly in the video, but we covered this last week): what do the sympathetic vs parasympathetic nervous systems do to ventilation (rate, depth, and airway diameter)?

 

Sympathetic nervous systems increase the respiration rate and depth . Additionally, sympathetic stimulation leads to dilation of the airway diameter, facilitating efficient airflow. 

Parasympathetic nervous systems decrease the respiration rate and depth, also constricting the airway diameter.