The Heart
What are the four chambers of the heart?
left and right atria, left and right ventricles
55% of blood, contains proteins, water, and solutes
Plasma
Pacemaker of the heart
SA node
Where does de-oxygenated blood from the lower body enter the heart?
Inferior vena cava
What is another name for the mitral valve?
Bicuspid
The very tip of the heart is called...
Apex
What are the three formed elements in order from least to most abundant?
white blood cells, platelets, red blood cells
Structures that carry current through the atrioventricular septum to the apex of the heart
Left and right bundle branches
Blood flows out of these away from the heart
Arteries
What are the two types of valves?
Semilunar and Atrioventricular
This separates the ventricles
atrioventricular septum
What are the three granulocytes?
Basophils, Neutrophils, Eosinophils
Explain electric current as it travels though the AV node
Slows down
Describe the blood flow for de-oxygenated blood
superior/inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary artery, lungs
Valve between the left ventricle and aorta?
Aortic Valve
This is the thin bag-like structure that covers the heart
Pericardium
Red blood cell production
Erythropoiesis
Connects AV node to bundle branches
AV bundle or bundle of his
Describe the pathway for newly oxygenated blood into the heart and out to the body
pulmonary veins, left atrium, bicuspid (mitral) valve, left ventricle, aortic valve, aorta
What is the name of the valve between the right atrium and right ventricle, and what type of valve is it?
Tricuspid, AV valve
What is the difference between systole and diastole?
systole - contraction
diastole - rest
Leukocyte with horseshoe shaped nucleus
Monocyte
QRS complex reflects...
ventricular contraction
What is the longest vein and largest artery in the body?
Great saphenous vein, aorta
What are the two semilunar valves and how many leaflets do they have?
Pulmonary and Aortic (Tricuspid)