Vocab
the fluid portion of the blood
plasma
the middle layer of the heart
myocardium
these contain valves to prevent blood from flowing in a backward direction
veins & venules
this type of pacemaker is the most common and delivers electrical impulses only when hearts own conduction system is not working
demand pacemaker
circulatory system is also called ____________ ___________ and consist of heart, blood vessels, and blood
transportation system
these are abnormal heart rhythms, can be mild to life threatening
arrhythmias
This valve is between the right atrium and right ventricle that prevents blood from flowing back into right atrium
tricuspid
erythrocytes
this is done to unclog arteries
coronary stent
period of ventricular contraction
systole
Engulfing, ingesting, and destroying pathogens is a process called
phagocytosis
the bundle of his divides into ____________________
which carries impulses down throughout the ventricles
right and left bundle branches
this leukocyte kills bacteria by secreting an enzyme called lysozyme
neutrophils
a blood clot or mass of material circulating in the blood vessels
embolus
the first branch of the aorta is ________ _________
which carries blood to the myocardium
coronary artery
pacemaker of the heart
sinoatrial node
the heart is located in the ______________________
which is between the lungs, behind the sternum and above the diaphragm
mediastinal cavity
leukocyte that provide immunity to the body by developing antibodies and protect against formation of cancer cells
lymphocytes
inflammation of a vein
phlebitis
the word used for chronic, sever heart pain
angina
name 5 things that blood transports through the body
oxygen
carbon dioxide
nutrients
metabolic & waste products
heat
the upper part of the septum is called
interatrial septum
normal thrombocyte count per cubic millimeter of blood is
250,000 - 400,000
if this is not treated, it can cause permanent damage to the heart, blood vessels, and kidneys
which acid is required for development of mature red blood cells
folic acid