Kinesiology 2230A/B Lecture Notes - Lecture 23: Central Nervous System, Vasodilation, Catecholamine

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2230A/B
• Professor: Glen Belfry

Document Summary

If this continues over an extended period of time that tissue will die --> you lose ejection of blood when pressure increase: angioplasty is very traumatic surgery with long recovery time. Distribution of blood flow: at least part of a-vo2diff due to better blood flow distribution, blood distribution is set up as parallel vascular bed. Skin blood flow: at rest about 500ml/min of blood directed to the skin. During light exercise close to 2l/min, heavy exercise 2. 5l /min redirected to the skin. If you use the o2 those levels are going to drop. Co2 going to increase: key points: muscle is active, metabolism is active, ph may change, etc. Local factors (direct effect)+ interplay between sympathetic drive + locally at working muscle the factors that overcome sympathetic effect enabling vasodilation (increase in radius and blood flow) Triathalon: using different muscle groups during different exercises. Intrinsic: properties within the heart itself that can change heart rate and contractility.