Wcu emc 240 exam 1 3 - Study guides, Class notes & Summaries

WCU EMC 240 Exam 1-3 Questions & Assignme Describe the process of breathing. Include the stimulus to breath and the process of inspiration/expiration. - ANSWERInspiration is an active process triggered by an increase in CO2 that stimulates the chemoreceptors. This sensory information is communicated to the brain stem. Motor nerve stimulation travels down the spinal cord causing diaphragm and intracostal muscles to contract. This increases the size of the thoracic cavity and causes a drop in the...

Describe the process of breathing. Include the stimulus to breath and the process of inspiration/expiration. - ANSWERInspiration is an active process triggered by an increase in CO2 that stimulates the chemoreceptors. This sensory information is communicated to the brain stem. Motor nerve stimulation travels down the spinal cord causing diaphragm and intracostal muscles to contract. This increases the size of the thoracic cavity and causes a drop in the pressure inside the thoracic cavity. Air r...