death+notes+THL

__**Death**__ - chem process by which O2 is used to make ATP and sugars - fibers "lock" and "unlock" during muscle contraction and relaxation - controlled by a biochemical pathway in cells that depends on O2  - if you have high levels of calcium within the cell, that stimulates muscle contraction
 * 1) when you stop breathing
 * 2) when your head comes off
 * 3) heart stops beating
 * 4) no pulse
 * 5) brain activity ceases
 * 6) life support
 * __Chemically and Biologically What Happens During Death__**
 * first your heart stops beating so that the cells no longer get blood and oxygen flow
 * "aerobic respiration" stops
 * muscles are made up of two different kinds of fibers that work together
 * known as rigor mortis