QUESTIONS AND ANSWERS SURE A+
✔✔Ventilation rate - ✔✔Number of breaths per minute
✔✔Hyperventilation - ✔✔Decreases CO2 causing increased blood pH
✔✔Paper bag breathing - ✔✔Restores CO2 levels to normalize blood pH
✔✔High altitude adaptation - ✔✔Increases red blood cell production and breathing rate
to compensate for low oxygen
✔✔Red blood cells - ✔✔Transport oxygen using hemoglobin
✔✔Hemoglobin - ✔✔Protein that binds oxygen and carries it in blood
✔✔White blood cells - ✔✔Defend against infection
✔✔Platelets - ✔✔Help form blood clots to stop bleeding
✔✔Plasma - ✔✔Liquid portion of blood that transports nutrients, hormones, and
proteins
, ✔✔Albumin - ✔✔Maintains osmotic pressure and keeps fluid in bloodstream
✔✔Globulins - ✔✔Function in immune response as antibodies
✔✔Fibrinogen - ✔✔Forms fibrin to create blood clots
✔✔CO2 transport (bicarbonate) - ✔✔CO2 converted to bicarbonate for transport in
blood (major method)
✔✔CO2 transport (hemoglobin) - ✔✔CO2 binds to hemoglobin for transport
✔✔CO2 transport (dissolved) - ✔✔Small amount of CO2 transported dissolved in
plasma
✔✔Heart - ✔✔Pumps blood through pulmonary and systemic circuits
✔✔Atria - ✔✔Receive blood entering the heart
✔✔Ventricles - ✔✔Pump blood out of the heart
✔✔Tricuspid valve - ✔✔Prevents backflow between right atrium and right ventricle
✔✔Mitral valve - ✔✔Prevents backflow between left atrium and left ventricle
✔✔Pulmonary valve - ✔✔Prevents backflow from pulmonary artery into right ventricle
✔✔Aortic valve - ✔✔Prevents backflow from aorta into left ventricle
✔✔Arteries - ✔✔Carry blood away from heart under high pressure
✔✔Veins - ✔✔Return blood to heart and contain valves to prevent backflow
✔✔Capillaries - ✔✔Allow exchange of gases, nutrients, and wastes between blood and
tissues
✔✔Pulmonary circulation - ✔✔Carries blood from heart to lungs for oxygenation
✔✔Systemic circulation - ✔✔Delivers oxygenated blood to body tissues
✔✔Atherosclerosis - ✔✔Plaque buildup in arteries that reduces blood flow
✔✔Arteriosclerosis - ✔✔Hardening of arteries reducing elasticity