01:146:356 Lecture Notes - Lecture 12: Latvian Lats, Adrenergic, Prefrontal Cortex

• School: Rutgers University
• Department: Cell Biology and Neuroscience
• Course: 01:146:356
• Professor: Gary Merrill

Document Summary

Physiology notes control of heart rate (day 2) Exercise: 25l/min, ending to a return of about 20 l/min. From all the blood flow, less goes to function of major organs, such that the heart gets about 4 to 5 percent and then most is distributed to heavy muscle (about 80 to 85%) There"s a greater distri(cid:271)utio(cid:374) of (cid:271)lood to the (cid:373)ajor orga(cid:374)s, espe(cid:272)iall(cid:455) to the brain which will be receiving 15% instead of the mere 3 to 4 during exercise. The worst thing you can do is go from not having anything to eat and then performing physical activity. More o2 can only be delivered by: 1) increased oxygen supply by more blood flow. 2) increased avo2, there will be greater absorption. Arterial o2 content cannot exceed about 20 ml / min for circulative. Note: during rest, the prefrontal cortex receives more blood flow. This phenomenon can apply to any organ. Kidneys are the most profused per gram of tissue.