Heart electrical sys.
The part of the electrical system that starts the heartbeat and acts as the heart's natural pacemaker
What is Sinoatrial (SA) node?
Period of contraction in the heart which is the force that moves blood through arteries. Delivers oxygen and nutrients to tissues, maintains circulation and blood pressure, and keeps organs alive and functioning.
What is Systole?
The meaning of the prefix "leuk" in the blood cell leukocytes (DEAN VAUGHN)
What is white?
Cancer of white blood cells
Symptoms: fatigue, infections, bruising
Treatment: chemotherapy, radiation, bone marrow transplant
What is leukemia?
Acronym you can use to remember how to label the valves
What is PATM (Pat Em)?
Slows the signal slightly so the ventricles can fill with blood
Period of rest in the heart which the heart chambers fill with blood. It occurs between heartbeats and supplies oxygenated blood to the heart muscles.
What is Diastole?
The blood cell that carries oxygen using a hemoglobin to transport carbon dioxide back to lungs
What is erythrocytes?
Blocked blood flow to heart muscle (Myocardial Infarction)
What is Heart Attack?
Name all 4 valves
What is Pulmonary, Aortic, Tricuspid, and Mitral?
Electrical pathway connecting atria to ventricles and carries signals from the AV node downward while also ensuring the signal reaches both ventricles.
What is Bundle of His?
Your heart beats faster and harder when you exercise because
The cell that helps blood clot and helps us heal
What is thrombocytes?
What is High Blood Pressure?
Name the 2 semilunar valves
The 2 branches that the Bundle of His breaks into, one goes to the right ventricle and the other goes to the left ventricle. Ensures both ventricles receive the signal.
What is Right and Left Bundle Branches?
Systole and diastole is important because
What is hey form the heartbeat, deliver oxygen and nutrients to tissues, keep organs functioning, assist to moving blood throughout the body, and maintain circulation?
Blood cell that helps fight infection and works harder when you're sick
What is leukocytes?
Name 3 diseases mentioned
What is Aneurysm, Anemia, Varicose Veins, Atherosclerosis, Hemophilia, Hypertension, Phlebitis, Myocardial Infarction, Embolus, Leukemia?
The reason these valves open and close
What is to prevent back flow of blood?
Network of specialized fibers in ventricular walls. Spread electrical impulses very rapidly. Trigger strong, coordinated ventricular contraction. Completes the electrical pathway.
What is Purkinje Fibers?
Name at least 3 differences between diastole and systole
What is Diastole - Heart relaxes, Chambers fill with blood, AV valves open, Semilunar valves close, Lower Blood pressure
Systole - Heart contracts, Chambers release blood, AV valves close, Semilunar valves open, Higher Blood pressure
Name all three blood cells and state their function
What is
Erythrocytes transports carbon dioxide back to the lungs and is essential for energy production
Leukocytes help fight infection and work harder during illness
Thrombocytes help the body heal from cuts and injures, they create scabs
Enlarged, twisted veins near the surface of the skin, it is caused by weak or damaged veins
What is varicose veins?
Location of the tricuspid valve