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, and which is least abundant?
white blood cells, platelets, red blood cells
WBCs are least abundant
Structures that carry electrical current through the atrioventricular septum to the apex of the heart
Left and right bundle of His 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
What is the largest artery in the body?
Aorta
Valve between the left ventricle and aorta?
Aortic Valve
This is the thin bag-like structure that covers the heart
Pericardium
Name the order of the White blood cells from most to least abundant.
Neutrophil, Lymphocyte, Monocyte, Eosinophil, Basophil
bundle of His sends signal to these
purkinje fibers
Describe the blood flow for de-oxygenated blood
superior/inferior vena cava, right atrium, tricuspid valve, right ventricle, pulmonary valve, pulmonary artery, lungs
What is the name of the valve between the right atrium and right ventricle?
Tricuspid
What is the difference between systole and diastole?
systole - contraction
diastole - rest
Can receive blood transfusions from all other blood types
AB
QRS complex reflects...
ventricular polarization
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 are the two atrioventricular valves and how many flaps do they have?
Tricuspid-3
Bicuspid-2