Final Exam Note Cards Flashcards
Which of the following is not a function of blood:
a. produces plasma hormones
b. helps stabilize pH of extracellular fluids
c. helps regulate body temperature
d. participates in initiation of blood clotting
e. transports variety of nutrients
a. produces plasma hormones
A normal hematocrit is _____ of the total blood volume
37-52%
Which of the following proteins is the most abundant in plasma?
a. albumin
b. prothrombin
c. transferrin
d. hemoglobin
e. fibrinogen
albumin
the main function of erythrocytes is to__
transport oxygen
most oxygen is transported in the blood bound to ___
choose from:
alpha chains, heme groups, plasma membrane, beta chains, delta chains
heme groups in hemoglobin
A person with type A blood can safely donate RBCs to someone of type _____ and can receive RBCs from someone of type ____
AB; O
A person with type AB blood has ____ RBC antigen
A and B
The universal donor of RBCs is blood type
O, Rh-negative
An individual has type B, Rh-positive blood. The individual has ____ antigen(s) and can produce anti-_____ antibodies
B and D; A
The number of _____ typically increases in response to bacterial infections
neutrophils
which cells aid in the body’s defense processes by secreting histamine and heparin
basophils
a patient is diagnosed with leukocytosis if they have more than ____ WBCs
10,000
when a clot is no longer needed, fibrin is dissolved by
plasmin
select the correct statement about heart valves:
a. the mitral (bicuspid) valve separates the right atrium from the right ventricle
b. the atrioventricular (AV) valves prevent backflow of blood added into the atria during ventricular contraction
c. the tricuspid valve divides the left atrium from the left ventricle
d. aortic and pulmonary semilunar valves control the flow of blood into the heart
b. the atrioventricular (AV) valves prevent backflow of blood added into the atria during ventricular contraction
The plateau in action potential of cardiac muscle results from the action of _____
slow Ca2+ channels
What is the correct sequence of events of the cardiac cycle
choices include sequences of:
isovolumetric contraction,
isovolumetric relaxation,
ventricular ejection,
ventricular filling
ventricular filling –> isovolumetric contraction —> ventricular ejection —> isovolumetric relaxation
What route of blood flow is correct?
Choices include sequences of:
aerteriole, capillary, venule, heart
conducting artery,
distributing artery,
heart, large vein,
medium vein
heart —> conducting artery —> distributing artery –> arteriole —> arteriole —> capillary —-> venule —-> medium vein —>large vein —> heart
permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of ___
capillaries
the receiving chambers of the heart include the _____
right and left atria
the fact that the left ventricle of the heart is thicker than the right ventricle reveals that it _____
pumps blood against a greater resistance
which of the following receive blood during ventricular systole
Choices include:
aorta only, pulmonary arteries only, both the aorta and pulmonary trunk
both the aorta and pulmonary trunk
Select the correct statement about the structure of the heart wall.
a. the heart chambers are lined by endomysium
b. connective tissue in the heart wall aids in the conduction of the action potential
c. fibrous cardiac skeleton forms the bulk of the heart
d. myocardium is the layer of the heart that actually contracts
d. myocardium is the layer of the heart that actually contracts
Electrical signals pass between cardiomyocytes through the ____
Choices include the types of connections of adjacent cells.
gap junctions
The volume of blood ejected by each ventricle in one minute is called the ____
cardiac output



















































