Flashcards in circulatory system Deck (46):
what happens to heart during diastole?
the heart has a brief period of rest
what happens to the heart during systole?
Period of contraction of heart where it squeezes out blood
abnormal hearth rhythms
how is arrhythmia diagnosed?
cardiac monitors and electrocardiogram
Muscular elastic blood vessels that carry blood away from the heart
whats the most muscular and elastic blood vessel?
whats the conductive pathway for electrical impulse in the heat?
SA node, AV node, bunndle of his, R & L bundle branches, purkinje fibers
blood vessels that carry blood back to heart and contain valves to prevent backflow of blood
vessels that allow oxygen and nutrients to pass through the cell and connect arterioles with venules
largest artery in the body
superior and inferior vena cava
two largest veins in body
smallest branches of veins in the body
smallest branches of arteries in the body
what are six substances transported by the blood?
oxygen, carbon dioxide, nutrients, metabolic and waste products, heat
six substances that are dissolved or suspended in plasma
blood proteins, nutrients, vitamins, gasses, metabolic waste products and hormones
what are the three main blood cells?
erythrocytes, leukocytes, thrombocytes
function of erythrocytes?
carry oxygen from lungs to the body and brings carbon dioxide from body to lungs
function of leukocytes?
protects body from infectious disease and foreign invaders
function of thrombocytes?
stops bleeding by clumping and clotting blood vessel injuries
what gives blood its characteristic of red color ?
whats hemoglobin? function?
- complex protein composed of protein molecule called globin
- transports o2 and co2 threw the body
whats neutrophils and monocytes?
what do lymphocytes do?
provide immunity for the body by developing antibodies
what do eosinophils do?
defend the body from allergic reactions
what do basophils do?
produce histamine and heparin
saclike formation in the wall of an artery
inadequate number of red blood cells, hemoglobin, or both
varicose veins disease?
dilated swollen veins
a fatty deposit on the wall of arteries
disease characterized by failure of blood to clot
high blood pressure
inflammation of the veins with formation of a clot
myocardial infarction disease?
blockage in the coronary arteries of the heart
foreign substance circulating in the blood stream
malignant disease with large numbers of immature white blood cells
aortic valve ?
valve between the left ventricle and aorta
muscular middle layer of the heart
double- layer membrane on outside of heart
whats the septum?
the muscular wall that separates the heart into a right and left side
right and left ventricles?
lower chamber of the heart
right and left atria?
upper chamber of heart
fluid portion of blood?
valve between the right ventricle and right pulmonary artery?
smooth layer of cell lining the inside of the heart
whats tissue that flows through the circulatory system?