what are 3 'systems' of blood circulation that we discussed in class?
(Ans-
pulmonary system
systemic system
coronary system
during ventricular systole, what is happening to the blood volume within the ventricle?
(Ans- first, there is no change-once pressure is great enough and the semi...
what are 3 'systems' of blood circulation that we discussed in class?
(Ans-
pulmonary system
systemic system
coronary system
during ventricular systole, what is happening to the blood volume within the
ventricle?
(Ans- first, there is no change-once pressure is great enough and the
semilunar valves one, volume drops
what 3 veins empty into the right atrium
(Ans- superior vena cava, inferior vena cava, coronary sinus
an individual has an increase in afterload, what effect would this have on
MAP
(Ans- an increase in afterload=decrease in SV=decrease in CO=decrease
in MAP
what are two unique structures the fetus heart has and not the adult heart?
(Ans- foramen ovale and ductus arteriosus
,which chamber of the heart has the thickest walls?
(Ans- left ventricle
during the cardiac cycle, the heart experiences two isovolumetric states-
when do these occur?
(Ans- the beginning of ventricular systole and beginning of ventricular
diastole
during ventricular systole, what happens to the pressure within the
ventricles?
(Ans- it increases
where do heart sounds come from?
(Ans- closing of valves
where is the atrial repolarization located on an EKG
(Ans- it is masked by the QRS complex
what chambers are contracting to cause the p-wave on an EKG
(Ans- the left and right atria
what are the 5 structures of the cardiac conductive tissue?
(Ans-
1) SA node
2) AV node
3) bundle of his
4) left and right bundle branches
,5) purkinji fibers
the process of creating new red blood cells is called?
(Ans- erythropoiesis
name the structure and whether it contains oxygenated or deoxygenated
blood
(Ans- right atrium; deoxygenated
name the structure
(Ans- aortic semilunar valve
oxygen is carried by _______ cells. it binds to proteins called ______ that
contain iron
(Ans- erythrocytes; hemoglobin
of the formed elements, which cells are responsible for immune function,
clotting, and gas transfer-in that order?
(Ans- leukocytes, platelets, erythrocytes
what are the major functions of blood? (you must name 3)
(Ans-
1) plays a role in immune function
2) temp regulation
3) pH regulation
4) gas/nutrients/ waste transport
, 5) regulates water loss
a patient has a stroke volume of 70ml/beat, a heart rate of 70 beats/min, a
mean arterial pressure of 100, systolic BP of 95 and diastolic BP of 60.
calculate output of this patient
(Ans- CO=SVxHR=70ml/beat/min=4900ml/min=4.9L/min
which ions mediate the upstroke, plateau, and downstroke of a cardiac
action potential. indicate the contraction phase that correlates to these
events
(Ans- upstroke=sodium; depolarization
plateau=calcium; contraction
downstroke=potassium; relaxation
what are the three layers of the heart?
(Ans- epicardium, myocardium, endocardium
what is the fluid filled sac called that surrounds the heart?
(Ans- pericardium
when red blood cells get broken down, the iron molecule is transferred from
the macrophage to the liver with which transfer protein?
(Ans- transferrin
Which wave indicates atrial depolarization?
(Ans- P wave
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