Blood Basics
Heart Anatomy
Circulation and Vessels
Heart Rhythm and Health
Blood Disorders and Special Circulation
100
What type of tissue is blood classified as?
What is connective tissue?
100
How many chambers are in the human heart?
What is four?
100
What type of blood vessel carries blood away from the heart?
What is an artery?
100
What part of the heart acts as the pacemaker or initiates the heartbeat?
What is the SA node?
100
Which blood disorder is caused by low iron levels?
What is iron deficiency anemia?
200
Which blood component transports oxygen?
What are erythrocytes (red blood cells)?
200
Which side of the heart pumps blood to the lungs?
What is the right?
200
Which circuit carries blood from the heart to the lungs and back?
What is pulmonary circulation?
200
FAAAA What does the P wave represent on an EKG?
What is atrial contraction?
200
What is a thrombus?
What is a blood clot that forms in an undamaged vessel?
300
What protein in red blood cells binds oxygen and carbon dioxide?
What is hemoglobin?
300
Which chamber has the thickest myocardium?
What is the left ventricle?
300
Which blood vessels are only one cell thick and allow diffusion?
What are capillaries?
300
What condition is defined as a resting heart rate below 60 bpm?
What is bradycardia?
300
Which blood disorder causes misshapen red blood cells?
What is sickle cell anemia?
400
Which organ releases erythropoietin when oxygen levels are low?
What are the kidneys?
400
What valve prevents blood from flowing back into the left atrium?
What is the mitral or bicuspid valve?
400
Why do veins have valves?
To prevent backflow of blood
400
What is cardiac output?
What is how much blood your heart sends to your body each minute? Formula: Cardiac Output = Heart Rate × Stroke Volume
Heart Rate (HR): beats per minute
Stroke Volume (SV): amount of blood pumped with each beat
400
Which fetal structure allows blood to bypass the lungs?
What is the foramen ovale?
500
Why do mature red blood cells not contain mitochondria?
What is so they do not use the oxygen they transport and can deliver more to tissues?
500
What large blood vessel carries oxygenated blood from the heart to the body?
What is the aorta? 
500
Why do veins in the legs rely on skeletal muscle contractions to move blood?
What is because venous blood pressure is low and muscles help push blood back to the heart?
500
What buildup in arteries can lead to heart attacks?
What is atherosclerotic plaque?
500
Why must fetal circulation structures close after birth?
What is because the lungs and liver must function independently?