Physiology 2130 Study Guide - Midterm Guide: Voltage-Gated Potassium Channel, Membrane Potential, The Sequence

• School: Western University
• Department: Physiology
• Course: Physiology 2130
• Professor: John Bell

Document Summary

Heart begins beating long before you are born, and will not stop until you die. Your heart, (size of your fist), sits in your chest cavity between your lungs. During the course of an average life, it will beat 2. 5 million times. 160"000km (100"000 miles) of blood vessels that transport blood directly to almost every cell in your body. The 4 principal functions of the cardiovascular system are as follows: transports oxygen and nutrients to all cells of the body, transports carbon dioxide and waste products from the cell. It helps regulate body temp and ph: transports and distributes hormones and other substances within the body. Consists of two side-by-side pumps: right atrium and ventricle, which pumps blood to the lungs, and the left atrium and ventricle, which pumps blood to the rest of the body. The wall of the left ventricle is much thicker than the wall of the right ventricle.