Download 11. In measuring aortic pressure, one would measure the high point

Old Questions Part 4
1.
Which of the following is a mechanism for regulating blood flow
through arterioles?
a.
b.
c.
d.
e.
2.
Which of the following is a characteristic of capillaries?
a.
b.
c.
d.
e.
3.
4.
Small diameter
Low rate of flow
Very large number of these
A and B
All of the above
True or False: Lymph vessels collect excess tissue fluid and
proteins.
Which of the following is a depiction of cardiac output (CO)?
a.
b.
c.
d.
e.
5.
Myogenic Regulation
Machen’s thesis on arteriole regulation
Bile regulation
Gastrin feedback
none of the above
Stroke volume x breathing rate
Breathing rate x tidal volume
Stroke volume x residual volume
Stroke volume x heart rate
None of the above
Which of the following is the protective layer of tissue that covers
the heart?
a.
b.
c.
d.
e.
endothelium
fibronectin
aorta
venae cavae
pericardium
6.
True or False: The heart sounds (lub-dub) are made by the
shutting of the various heart valves.
7.
Conducting tubes such as the
, bronchi, and bronchioles are
the means by which air is brought from the outside of the body to
the inside.
a.
b.
c.
d.
e.
8.
The lipid like molecule which helps to decrease the surface
tension of water, thereby reducing the amount of work it takes to
inspire is called a:
a.
b.
c.
d.
e.
9.
trachea
esophagus
eustachian tube
A and B
All of the above
detergent
denaturant
decongestant
surfactant
None of the above
The volume of air that is exchanged under normal conditions is
approximately 500 mls and is called the:
a.
b.
c.
d.
e.
Tidal volume
Inspiratory reserve volume
Expiratory reserve volume
Residual volume
Stroke volume
10. The upper chambers of the heart are called the
chambers are known as the ventricles.
a.
b.
c.
d.
e.
and the lower
sinuses
vessicles
capsules
atria
None of the above
11. In measuring aortic pressure, one would measure the high point,
called the systole, and the low point, called the:
a.
b.
c.
d.
e.
diastole
murmur
monostole
tristole
None of the above
12. Hypertension (high blood pressure) leads to heart problems by
reducing coronary blood flow for extended periods of time
during:
a.
b.
c.
d.
e.
Atrial systole
Isovolumetric contraction
Ejection phase
Ventricular diastole
None of the above
13. The oxygen-hemoglobin association curve can shift due to
changes in:
a.
b.
c.
d.
e.
temperature
pH
blood pressure
A and B
All of the above
14. Most of the carbon dioxide produced by the body is transported
through the blood by:
a.
b.
c.
d.
e.
conversion to HCO3binding to hemoglobin
dissolving in the blood
dissolving in the lymph
None of the above
15. The result of holding your breath is:
a.
b.
c.
d.
e.
PCO2 increases and pH increases
PCO2 increases and pH decreases
PCO2 decreases and pH increases
PCO2 decreases and pH decreases
None of the above
16. The strongest stimulant for breathing comes from:
a.
b.
c.
d.
nitrogen
oxygen
carbon dioxide
chlorine
17. The two types of receptors needed to maintain the correct
respiration levels are central chemoreceptors and
chemoreceptors:
a.
b.
c.
d.
e.
ancillary
peripheral
autonomic
systemic
None of the above
Old Questions Part 4
18. The role of the central chemoreceptors is to detect:
a.
b.
c.
d.
e.
changes in air flow
levels of HCO3oxygen levels through pH
carbon dioxide levels through H+ or pH.
None of the above
19. Pneumonia and pulmonary edema decrease respiration by:
a.
b.
c.
d.
e.
increasing the diffusion of oxygen and carbon dioxide
decreasing the diffusion of oxygen and carbon dioxide
reducing the amount of water in the lungs
B and C
None of the above
20. Waste removal from the body includes the following waste
products:
a.
b.
c.
d.
e.
NH4
SO42PO43A and B
All of the above
21. The kidneys function not only in the removal of wastes but also:
a.
b.
c.
d.
e.
salt balance
water balance
blood balance
A and B
All of the above
22. Which of the following is not a structure of the nephron?
a.
b.
c.
d.
e.
glomerulus
proximal convoluted tubule
distal convoluted tubule
Loop of Henle
All of the above are structures of the nephron
23. The site of blood filtration occurs in the:
a.
b.
c.
d.
e.
distal convoluted tubule
loop of Henle
glomerulus
collecting tubule
None of the above
24. Which of the following components of the glomerulus is
responsible for preventing proteins from passing into the lumen
from the blood being filtered?
a.
b.
c.
d.
e.
red blood cells
podocytes
collecting duct
macrophages.
All of the above
25. Which of the following is a function of the proximal convoluted
tubule?
a.
b.
c.
d.
e.
secretes glucose
secretes proteins
secretes some drugs such as penicillin
secretes vitamins
none of the above
26. The level of concentration of urine appears to be dependent on the
length of the:
a.
b.
c.
d.
e.
glomerulus
proximal convoluted tubule
loop of Henle
distal convoluted tubule
collecting tubule
27. The concentration gradient
as you move further into the
medullary region (further away from the cortex) of the kidney.
a.
b.
c.
d.
e.
increases
remains the same
decreases
undergoes random fluctuations
None of the above
28. ADH is stored in the:
a.
b.
c.
d.
e.
anterior pituitary
posterior pituitary
adrenal gland
kidneys
None of the above
29. Your body has osmotic receptors that can detect osmolarity
fluctuations in your body. They are located in the:
a.
b.
c.
d.
e.
feet
lungs
liver
hypothalamus
none of the above
30. ADH acts on the collecting duct to insert water-permeable
channels that are called:
a.
b.
c.
d.
e.
hydroporins
aquaporins
aldosterone
renin
none of the above
31. Buffers act to:
a.
b.
c.
d.
e.
cause large changes in pH
prevent large changes in pH
cause large changes in urine content
prevent large changes in urine content
None of the above