Science Medicine Hematology
A&P 2 Exam 1: Blood and Heart 2025 update
|comprehensive questions and verified answers
(complete solutions) ASSURED SUCCESS|GRADE
A+!!
Erythropoietin stimulates red red bone marrow produced by kidney
blood cell production in the
The first heart sound is caused AV ; ventricular contraction
by the
closure of valves and it
occurs at the
beginning of ______
Stem cell for all blood cells is hemocytoblast
the
What are the 5 types of neutrophils, lymphocytes, monocytes, eosinophils, basophils
leukocytes ?
What is the function of phagocytize bacteria
neutrophils
What is the function of Provide immunity for the body by developing antibodies
lymphocytes?
What is the function of phagocytosis; develop into macrophages in tissues
monocytes?
Counterattacking parasitic worms/
What is the function of
eosinophils ? complex roles in allergies and asthma
what is the function of produce histamine (inflammation) and heparin (anticoagulant)
basophils?
What phase of the cardiac Isovolumetric contraction
cycle preceded the period
of ejection?
What are the plasma proteins? albumins, globulins, fibrinogen
What is the function of maintain osmotic pressure
albumins?
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, 6/7/25, 12:10 AM A&P 2 Exam 1: Blood and Heart 2025 update |comprehensive questions and verified answers (complete solutions) ASSURED SUC…
alpha and beta: transport proteins ; binds to lipids, metal
ions, and fat-soluble vitamins
What is the function of
globumins?
gamma: antibodies
What is the function of blood clotting
fibrinogens?
1. Vascular Spasm
List the steps of blood
2. Platelet Plug
clotting in the proper
Formation
order.
3.Coagulation
Phase
What happens during vascular smooth muscle contracts, causing vasoconstriction
spasm
platelets stick to exposed collagen fibers
What happens during
of blood vessel wall platelets change
platelet plug formation
shape (develop long processes)
more platelets come and stick to form platelet plug
coagulation cascade converts inactive proteins to
What happens during
coagulation phase active forms and forms a blood clot.
True or False: During the True
cardiac absolute refractory
period a new action potential
cannot be produced.
True or False: The refractory True
period in
cardiac muscle cells are much
longer than skeletal muscle
What causes a prolonged Calcium ions; Their influx through slow calcium channels
refractory phase of cardiac
muscle?
What would happen if the If the absolute refractory period of cardiac muscle was the same
length of the absolute as it is in the
skeletal muscle TETANIC contraction might occur,
refractory period in
which would STOP the pumping action of the heart.
cardiac
muscle cells was the same as
it is for the skeletal muscle
cells?
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