Nov. 22, 2006
EXAM 4 - VERSION A
..) on your answer sheet.
You can keep this list of exam questions. You may write on it if you wish.
This form will be the only way you will know what answers you marked on the scantron.
Each question has only 1 correct answer. Indicate your choice on the answer sheet - scantron.
If you are stumped by a question, place a mark by it, and return to it later.
> = greater than
HDL = high density lipoprotein
< = less than
RV = right ventricle
AV = atrioventricular
HP = hydrostatic pressure
LDL = low density lipoprotein
SA = sinoatrial node
BP = blood (hydrostatic) pressure
HR = heart rate
OP = osmotic pressure
SR = sarcoplasmic reticulum
CO = cardiac output
IRV = inspiratory reserve volume
RA = right atrium
SV = stroke volume
CRP = C-reactive protein
LA = left atrium
RMV = respiratory minute volume
TV = tidal volume
ERV = expiratory reserve volume
LV = left ventricle
RR = respiration rate
VC = vital capacity
The ______ is the strongest chamber of the heart while the _____ is(are) the weakest.
RV - atria
LV - atria
RV - LV
LV - RV
Which blood vessel carries deoxygenated blood?
The AV valves of the heart are closed when the ventricles ________ and the atria __________.
contract - contract
are relaxed - contract
contract - are relaxed
are relaxed - are relaxed
Heart valves may be damaged by _____________, which can lead to impaired blood flow through the heart.
age related stiffening
all of these
Cardiac muscle cells have more _________ than white fiber skeletal muscle cells.
Aerobic exercise benefits the heart by increasing ____________.
the number of cardiac stem cells
the number of mature cardiac cells
blood flow to the heart muscle tissue
the relative size of each cell’s SR
Trace the “shortest” pathway of blood past/through these structures after the blood exits the left atrium: 1 - semilunar valves, 2 - AV valves, 3 -
aorta, 4 - vena cava, 5 - systemic capillaries, 6 - left ventricle:
2, 6, 1, 3, 5, 4
1, 6, 2, 3, 5, 4
2, 6, 1, 4, 5, 3
1, 6, 2, 4, 5, 3
The heart’s conduction fibers send electrical signals through the heart ______ because they are ______ than other cardiac muscle cells.