Devry BIOS255N Week 4 Midterm Exam Answers
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Devry
BIOS255N Week 4 Midterm Exam Answers
Question
1. Question : (TCO3) Which of the following is a major function of blood?
Student
Answer: production of enzymes
production
of neurotransmitters
transduction
of pressure
transportation
of heat
contractility
Question
2. Question : (TCO3) Which
of the following blood types is a person whose blood cells were agglutinated by
anti-A serum but not by anti-B serum nor by anti-Rh serum
B
positive
O
negative
O
positive
A
negative
Question
3. Question : (TCO3) Which of the following formed elements in blood only
temporarily move through the blood before they become fixed in the tissues as
macrophages?
thrombocytes
monocytes
basophils
eosinophils
Question
4. Question : (TCO3) Reduced vitamin B12 absorption from the small intestine
due to reduced intrinsic factor production from the stomach results in a
condition called
aplastic
anemia
megaloblastic
anemia
pernicious
anemia
iron
deficiency anemia
Question
5. Question : (TCO3) Serum is
plasma
without the clotting factors
the same
as lymph
formed
during the first step in blood clotting
pulmonary
interstitial fluid
Question
6. Question : (TCO3) Which of the following precursor cells give rise to
T-cells?
meyloblasts
lymphoid
stem cells
proerythroblast
megakaryoblast
Question
7. Question : (TCO3) Which of the following opposes the action of thromboxane
A2 by inhibiting platelet adhesion and release?
fibrinogen
plasmin
antithrombin
prostacyclin
Question
8. Question : (TCO3) Myeloid stem cells reside in
the
yellow marrow
the
thymus gland
the red
marrow
the
spleen
Question
9. Question : (TCO1) The tough, inelastic dense connective tissue that
surrounds the heart is called the
pleura
serous
pericardium
fibrous
pericardium
epicardium
Question
10. Question : (TCO1) During heart transplants, the ______ nerves are severed
resulting in a faster resting heart rate (approximately 100 beats per minute)
after the transplant
cardiac
accelerator
vagus
phrenic
cervical
spinal
Question
11. Question : (TCO1) Which of the following factors lead to depressed cardiac
output?
alkalosis
hypoxia
all of
the above
none of
the above have any depressive effects on the heart
Question
12. Question : (TCO1) If a person’s resting heart rate is 70 and their resting
stroke volume is 60 ml of blood, then their cardiac output is _______ L/min
4200
4.2
130
1.3
Question
13. Question : (TCO1) The purpose of the foramen ovale during fetal life is to
have the
blood bypass the liver
have the
blood bypass the lungs
have the
blood bypass the placenta
have the
blood bypass the brain
Question
14. Question : (TCO1) Heart murmurs are often heard in individuals with abnormalities
in the ____ of the heart.
myocardium
SA node
AV node
endocardium
Question
15. Question : (TCO1) Which of the following electrocardiogram (ECG) waves
represents ventricular repolarization?
Q wave
P wave
S wave
T wave
Question
16. Question : (TCO1) Which part of the brain contains the cardiovascular
center that regulated heart rate?
cerebrum
medullar
oblongata
cerebellum
thalamus
Question
17. Question : (TCO1) Which layer of the heart is comprised of epithelial
cells?
epicardium
endocardium
pericardium
serous
pericardium
Question
18. Question : (TCO2) Which of the following categories of hypertensive drugs
lower blood pressure by blocking the formation of angtiotensin II, which
results in vasodilation and decreased aldosterone secretion?
ACE
inhibitors
Beta
blockers
calcium
channel blockers
anabolic
steroids
Question
19. Question : (TCO2) Which of the following categories would an individual
with a blood pressure of 145/95 be placed in?
high
normal
prehypertension
stage 1 hypertension
stage 2
hypertension
Question
20. Question : (TCO2) Which of the following effectors would NOT be activated
as described below in response to hypovolemic shock?
kidneys
conserve salt and water
heart
rate increases
systemic
arterioles vasodilate
heart
contractility increases
Question
21. Question : (TCO2) Which of the following blood vessels have high pulsing
blood pressure?
internal
jugular vein
median
cubital vein
inferior
vena cava
none of
the above
Question
22. Question : (TCO2) During fetal development, the blood from the pulmonary
veins are shunted into the pulmonary arteries by the
foramen
ovale
ductus
venosus
placenta
ligamentum
arteriosum
Question
23. Question : (TCO2) Most capillaries throughout the body are
sinusoids
portal
systems
vasoconstrictory
throughputs
continuous
Question
24. Question : (TCO2) Capillaries are also referred to as
vasoconstrictors
vasodilators
pressure
reservoirs
distributing
vessels
Question
25. Question : (TCO2) The volume of blood that circulates through the systemic
blood vessels in one minute is called
tidal
volume
cardiac
output
cardiac
reserve
total
peripheral resistance
Question
26. Question : (TCO3) What is the pulse pressure of a person that has a
systolic pressure of 150 mm Hg with a diastolic pressure of 90 mm Hg?
Question
27. Question : (TCO3) Determine the mean arterial pressure for a patient with
an average systolic pressure of 120 mm Hg with a mean diastolic pressure of 60
mm Hg:
Question
28. Question : (TCO3) What is the resting cardiac output (in liters) of an
athlete with a stroke volume of 75 ml and a resting heart rate of 60
beats/minute?
Question
29. Question : (TCO3) The same athlete during exercise has a heart rate of 180
beats/minute with an increase of stroke volume to 125 ml. What is their cardiac
output during exercise?
Question
30. Question : (TCO3) What is the cardiac cycle for a person with a resting
heart rate of 80 beats per minute?
Question
31. Question : TCO3) What is the name of the blood vessel that supplies
the face and head (except the brain) with oxygenated blood?
Question
32. Question : TCO3) What is the name of the blood vessel that is the distal
extension of the external iliac artery as it enters the leg?
Question
33. Question : (TCO3) What is the name of the blood vessel that drains
deoxygenated blood from the medial aspect of the forearm?
Question
34. Question : TCO3) What is the name of the vein that is found behind the
kneecap on the posterior surface of the leg?
Question
35. Question : (TCO3) What is the name of this blood vessel that is
highlighted?
Question
36. Question : (TCO3) List and briefly describe the three mechanisms used
to reduce blood loss from a damaged blood vessel.
Question
37. Question : (TCO1) Define arrhythmia and discuss different categories of
arrhythmias.
Question
38. Question : (TCO2) What is a portal vein? Describe the hepatic portal
circulation and its functional significance
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