BPK 105 - Final Exam questions and answers graded
A+ updated
1. Describe the
Low blood oxygen levels stimulate rbc production by increasing the
process by
formation and release of the glycoprotein erythropoietin.
which more
red blood cells Erythropoietin stimulates red bone marrow to produce more rbc's. This
are made nega- tive-feedback mechanism increases the blood's capacity to
in response to transport oxygen and
low oxygen. What maintains homeostasis.
nutrients are
re- quired for
this process?
2. Draw a flow
chart
indicating the
three stages
of clot
formation
following
injury to a
blood ves- sel.
Where would
there be a
prob- lem if
the individ-
ual was
vitamin K
deficient? What
diagnostic
blood test
help deter-
,BPK 105 - Final Exam questions and answers graded
A+ updated
mine this,
what would be
a nor- mal
value for this
test? [6
marks]
3. Describe the Generating blood pressure
functions of o Contractions of the heart generate blood pressure, which is required to
the heart, force blood through the blood vessels.
including the Routing blood
heart struc-
,BPK 105 - Final Exam questions and answers graded
A+ updated
ture o The heart separates the pulmonary and systemic circulations, which
responsible ensures the flow of oxygen-rich blood to tissues.
for each Ensuring one-way blood flow
function o The valves of the heart ensure a one-way flow of blood through
the heart and blood vessels.
Regulating blood supply
o Changes in the rate of heart contraction match blood flow to the
changing metabolic needs of the tissues during rest, exercise, and
changes in body position.
1. Deoxygenated Blood enters R. Atrium from systemic route via the
4. Trace the flow superior and inferior vena cavas and from heart via the coronary sinus.
of blood
through the 2. R Atrium contracts, and deoxygenated Blood passes through tricuspid
heart. Spec- valve into
ify the vari- R. Ventricle
ous chambers, 3. R. Ventricle contracts and pushes blood against the tricuspid valve
forcing it
valves, and
ves-the func-
sels and
closed. High pressure in the ventricle forces the pulmonary semilunar valve
open,
tion of
each. and blood flows into the pulmonary trunk.
4. R. Ventricle relaxes and the pressure decreases, the pressure in
the pulmonary trunk becomes higher causing blood to flow back into the
pockets of the pulmonary semilunar valve, forcing it closed
5. Pulmonary trunk branches to form L and R pulmonary arteries
carrying blood to the lungs.
6. Returning oxygenated blood enters the L atrium 4 pulmonary vein
,BPK 105 - Final Exam questions and answers graded
A+ updated
7. L
atrium
contract
s,
forcing
blood
the flow
through
the
mitral
valve to
fill L
ventricl
e.
8. As the L
ventricle
begins to
contract,
blood is
pushed
against the
bicuspid valve
forcing it
closed
A+ updated
1. Describe the
Low blood oxygen levels stimulate rbc production by increasing the
process by
formation and release of the glycoprotein erythropoietin.
which more
red blood cells Erythropoietin stimulates red bone marrow to produce more rbc's. This
are made nega- tive-feedback mechanism increases the blood's capacity to
in response to transport oxygen and
low oxygen. What maintains homeostasis.
nutrients are
re- quired for
this process?
2. Draw a flow
chart
indicating the
three stages
of clot
formation
following
injury to a
blood ves- sel.
Where would
there be a
prob- lem if
the individ-
ual was
vitamin K
deficient? What
diagnostic
blood test
help deter-
,BPK 105 - Final Exam questions and answers graded
A+ updated
mine this,
what would be
a nor- mal
value for this
test? [6
marks]
3. Describe the Generating blood pressure
functions of o Contractions of the heart generate blood pressure, which is required to
the heart, force blood through the blood vessels.
including the Routing blood
heart struc-
,BPK 105 - Final Exam questions and answers graded
A+ updated
ture o The heart separates the pulmonary and systemic circulations, which
responsible ensures the flow of oxygen-rich blood to tissues.
for each Ensuring one-way blood flow
function o The valves of the heart ensure a one-way flow of blood through
the heart and blood vessels.
Regulating blood supply
o Changes in the rate of heart contraction match blood flow to the
changing metabolic needs of the tissues during rest, exercise, and
changes in body position.
1. Deoxygenated Blood enters R. Atrium from systemic route via the
4. Trace the flow superior and inferior vena cavas and from heart via the coronary sinus.
of blood
through the 2. R Atrium contracts, and deoxygenated Blood passes through tricuspid
heart. Spec- valve into
ify the vari- R. Ventricle
ous chambers, 3. R. Ventricle contracts and pushes blood against the tricuspid valve
forcing it
valves, and
ves-the func-
sels and
closed. High pressure in the ventricle forces the pulmonary semilunar valve
open,
tion of
each. and blood flows into the pulmonary trunk.
4. R. Ventricle relaxes and the pressure decreases, the pressure in
the pulmonary trunk becomes higher causing blood to flow back into the
pockets of the pulmonary semilunar valve, forcing it closed
5. Pulmonary trunk branches to form L and R pulmonary arteries
carrying blood to the lungs.
6. Returning oxygenated blood enters the L atrium 4 pulmonary vein
,BPK 105 - Final Exam questions and answers graded
A+ updated
7. L
atrium
contract
s,
forcing
blood
the flow
through
the
mitral
valve to
fill L
ventricl
e.
8. As the L
ventricle
begins to
contract,
blood is
pushed
against the
bicuspid valve
forcing it
closed
