Cardiovascular System Anatomy and Physiology October 30th, 2012 Q1W9 Aim: Evaluate the major structures of the cardiovascular system ☆ The average person has 70 heartbeats per minute and lives for 85 years; how many beats in one lifetime? (next page) ♡ ”Smile, it is the key that fits the lock of everybody's heart.” ~Anthony D'Angelo ☾ BSCS Pg. 167 Analysis 1 & 2

Cardiovascular System Anatomy and Physiology This can be solved by dimensional analysis. 1. We have to arrive at the right variable (heartbeats to lifetime). 2. How many beats per minute? 3. How many minutes in an hour? 4. How many hours in a day? 5. How many days in a week? 6. How many weeks in a month? 7. How many months in a year? 8. How many years in a lifetime? 70bp x60min x24hr x7days x4weeks x 12month x 85yrs 1min1hr1day1weeks1month1yrlifetime

Cardiovascular System Anatomy and Physiology 2billion 878million 848 thousand heartbeats! 2,878,848,000 beats per lifetime (bp/l) 1. Solve for your own number of beats in your my lifetime (38 years old) 2. Solve for your own number of beats in your your lifetime 70bp x60min x24hr x7days x4weeks x 12month x 85yrs 1min1hr1day1weeks1month1yrlifetime

Cardiovascular System Anatomy and Physiology Arteries are muscular thick walled vessels that transport O 2 blood away from the heart Capillaries are microscopic vessels that exchange O 2 and CO 2 with cells via blood Veins are thin walled vessels with valves that transport CO 2 blood to the heart

Cardiovascular System Anatomy and Physiology Right Atrium is the upper left chamber of the heart that receives deoxygenated blood from the whole body Right Ventricle is the lower left chamber of the heart that sends deoxygenated blood to the lungs Pulmonary Artery are blood vessels that transport deoxygenated blood to the lungs

Cardiovascular System Anatomy and Physiology Lung Capillaries an exchange point of O 2 and CO 2 with the environment Pulmonary Vein are blood vessels that transport oxygenated blood to the heart Left Atrium is the upper left chamber of the heart that receives oxygenated blood from the lungs Left Ventricle is the lower left chamber of the heart that sends oxygenated blood to the body

Cardiovascular System Anatomy and Physiology