Audience and Oxygen

I learned how important audience is. You can be speaking or writing but if you're not exactly sure who you are speaking/writing to, you cannot be effective. Be aware of who you want to receive your message. 

Also, i learned about the heart and the path of blood flow. The fact that you're heart is the key to your life is amazing to me. How it controls the oxygen being sent throughout your body. It gets me excited for my career. To put out blood, your heart works step by step and goes through a series of actions to pump out oxygenated blood. It starts with deoxygenated blood from the body coming in through the superior and inferior vena cavas of the heart. The blood travels to the right atrium, and pumps through the tricuspid valve. The blood then enters the right ventricle and exits through the pulmonary trunk out the pulmonary artery. It heads to the lungs to be oxygenated.