Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Circulatory System lecture selected slides


a space called the pericardial cavity found between the parietal and visceral membranes, containing 5-30ml of pericardial fluid which lubricates the membranes allowing the heart to beat without friction

semilunar valves

pulmonary and aortic valves that regulate the flow of blood from the ventricles into the great arteries

pulmonary valve

valve that controls blood flow from the RV into the pulmonary arteries

aortic valve

valve that controls the opening for oxygen-rich blood from the LV into the aorta

triscupid valve

valve that regulates blood flow between RA and RV

mitral valve

valve that lets oxygen-rich blood from the LA into the LV

coronary circulation

vascular system which supplies oxygen-rich blood to the heart by the aorta branching off into two main coronary blood vessels

left coronary artery

coronary artery with two branches that supplies blood to the left side of the heart

left anterior descending artery

a branch of the left coronary artery that supplies the apex, interventricular septum, and anterior walls of ventricles

circumflex artery

a branch of the left coronary artery that supplies the LA and posterior wall of the LV

right coronary artery

coronary artery that supplies blood mainly to the right side of the heart


a thick tissue which is 80% water and 20% solid, made of a variety of cells, each with a different job; made by cells inside bones' delivers O2 and nutrients to cells and removes CO2 and wate, keeps body at right temp, carries hormones to cells, sends antibodies to fight infection, contains clotting factors helping blood to clot and tissues to heal


average amount of blood in an adult


blood as a mean fraction of body weight


volume of blood in an adult male


volume of blood in an adult female


volume of blood/body weight


mean temperature of blood


pH of blood


viscosity (relative to water) of whole blood


viscosity (relative to water) of plasma


osmolarity of blood


mean salinity of blood


hematocrit of female blood


hematocrit of male blood


haemoglobin in female blood


haemoglobin in male blood


female mean RBC count


male mean RBC count

120 days

life span of a RBC


platelet count in blood


total WBC count of blood

albumins (60%), globulins (36%), fibrinogen (4%)

3 major proteins of the blood plasma

erythrocytes (RBCs), platelets, leukocytes (WBCs)

3 formed elements of blood

granulocytes, agranulocytes

2 types of leukocytes (WBCs)

neutrophils, eosinophils, basophils

3 types of granulocytes

lymphocytes, monocytes

2 types of agranulocytes


a disc-shaped cell with a thick rim and thin sunken center, 7.5um in diameter, 2um thick at rim, with a red pigment due to presence of hemoglobin (carries O2 and CO2); picks up O2 from lungs to deliver to tissues elsewhere; picks up CO2 from tissues to unload in lungs


a type of granulocyte which makes up 60-70% of WBCs; 4,150 cells/uL; 9-12um in diameter; nucleus has 3-5 lobes in S or C shaped array with fine reddish/violet granules in cytoplasm; carries out phagocytosis of bacteria and release of antimicrobial chemicals; number increases in bacterial infection


fragments of megakaryocyte cytoplasm, also called thrombocytes, 2-4um in diameter which secrete procoagulants/clotting factors which promote blood clotting which stops the blood from flowing out of the body when a vein/artery is broken;130,000-400,000 platelets/uL

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording