UPDATED 2025/2026 BIOS 255 EXAM 1 QUESTIONS AND ANSWERS GRADED A+ VERIFIED
Rightatrium;deoxygenated:namethestructureandwhetheritcontainsoxygenatedo blood rdeoxygen
ated
Aorticsemilunarvalve:namethestructure
Erythrocytes; hemoglobin: oxygen is carried by cells.itbindstoproteinscalled that
containiron
Leukocytes,platelets,erythrocytes:oftheformedelements,whichcellsareresponsibleforimmune function,
clotting, and gas transfer-in that order?
1)playsaroleinimmunefunction
Tempregulation
Phregulation
Gas/nutrients/wastetransport
Regulateswaterloss:whatarethemajorfunctionsofblood?(youmustname3)
CO=svxhr=70ml/beat/min=4900ml/min=4.9L/min: a patient has a stroke volume of
70ml/beat,aheartrateof70beats/min,ameanarterialpressureof100,systolicbpof95anddiastolicbpof60.
Calculateoutputofthispatient
Upstroke=sodium; depolarizationplateau=calcium; contraction
Downstroke=potassium;relaxation:whichionsmediatetheupstroke,plateau,anddownstrokeofa cardiac
action potential. Indicate the contraction phase that correlates to these events
Epicardium,myocardium,endocardium:whatarethethreelayersoftheheart?
Pericardium:whatisthefluidfilledsaccalledthatsurroundstheheart?
Transferrin:whenredbloodcellsgetbrokendown,theironmoleculeistransferredfromthemacrophageto the liver with
which transfer protein?
Pwave:Whichwaveindicatesatrial depolarization?
1/3
Rightatrium;deoxygenated:namethestructureandwhetheritcontainsoxygenatedo blood rdeoxygen
ated
Aorticsemilunarvalve:namethestructure
Erythrocytes; hemoglobin: oxygen is carried by cells.itbindstoproteinscalled that
containiron
Leukocytes,platelets,erythrocytes:oftheformedelements,whichcellsareresponsibleforimmune function,
clotting, and gas transfer-in that order?
1)playsaroleinimmunefunction
Tempregulation
Phregulation
Gas/nutrients/wastetransport
Regulateswaterloss:whatarethemajorfunctionsofblood?(youmustname3)
CO=svxhr=70ml/beat/min=4900ml/min=4.9L/min: a patient has a stroke volume of
70ml/beat,aheartrateof70beats/min,ameanarterialpressureof100,systolicbpof95anddiastolicbpof60.
Calculateoutputofthispatient
Upstroke=sodium; depolarizationplateau=calcium; contraction
Downstroke=potassium;relaxation:whichionsmediatetheupstroke,plateau,anddownstrokeofa cardiac
action potential. Indicate the contraction phase that correlates to these events
Epicardium,myocardium,endocardium:whatarethethreelayersoftheheart?
Pericardium:whatisthefluidfilledsaccalledthatsurroundstheheart?
Transferrin:whenredbloodcellsgetbrokendown,theironmoleculeistransferredfromthemacrophageto the liver with
which transfer protein?
Pwave:Whichwaveindicatesatrial depolarization?
1/3
