Biology 120 Exam No. 4 Spring 2003
1-5. A
vessel named the _1_ delivers blood to the right atrium of the heart. As blood exits the right atrium, the blood
passes through a valve named the _2_ and enters
the heart chamber named the _3_. A
vessel named the _4_ drains blood from this heart chamber and delivers the
blood to an organ named the _5_ where oxygen is added to the blood.
6-9.
A vessel named the _6_ delivers
blood to the left atrium of the heart.
As blood exits the left atrium the blood passes through a valve named
the _7_ and enters the heart chamber named the _8_. A vessel named the _9_ drains blood from this
heart chamber and delivers the blood to most of the body.
10. Where
is the atrio-ventricular node located?
A.
right atrium; B. left atrium; C. right ventricle; D. left ventricle; E. at the bottom of the two ventricles; F. between the two atria
11. To
what heart chamber(s) does the Bundle of His deliver impulses?
12. In
an electrocardiogram, the P wave measures electrical activity associated with
the contraction of the _?_
13. In
an electrocardiogram, the QRS wave measures electrical activity associated with
the contraction of the _?_
14. Name
the vessel(s) which supply oxygen and nutrients to heart muscles.
15. Name
the type of blood vessels which almost literally touch every cell in a human.
16. In
a human heart, which of the four chambers has the thickest walls?
17-18. The
foramen ovale is an opening between the heart chamber
named the _17_ and the heart chamber named the _18_ in a fetal heart.
19-20. The
ductus arteriosus is a
vessel that conducts blood from a vessel named the _19_ to a vessel named the
_20_ in a fetus.
21. Name
the specific part of the human brain that normally regulates the rate of heart
beat.
22. Name
the heart chamber in which the sino-atrial node is
located.
23. What
is the average rate of heart beat for a resting human?
24. If
the brain does not regulate the rate of heart beat, what structure will
initiate heart beats?
25. How
many liters of blood are present in an average human?
26. What
is the primary function of red blood cells?
27. What
is the primary function of platelets?
28. Name
the type of human blood cells that contain nuclei.
29. If
we remove all of the cells from a blood sample, the remaining fluid is called
_29_.
30-31. In
the final step of blood clot formation, a soluble protein named _30_, that is normally dissolved in the blood, is converted
into an insoluble protein named _31_ that forms the framework of a clot.
32. How
many lymphatic arteries are present an adult human male?
33. If
a lymphatic vein is blocked, what will be the most noticeable effect?
34. Bypass
surgery is most commonly used to route blood around a blocked area in a blood
vessel named the _34_.
35. Name
the human body organ that removes urea from the blood stream.
36. True
or False The atrio-ventricular node is an example of a lymphatic node.
37. Name
the human body organ that stores bile after its production in the liver.
38. Which
blood vessel would have the greater fluctuation in blood glucose levels?
A.
hepatic vein; B.
hepatic portal vein; C. neither has any
fluctuations in glucose; D. glucose
fluctuations are the same in both veins.
39. Which
of the following is the most toxic?
A.
ammonia; B.
urea; C. uric acid; D. all are equally toxic
40. Which
of the following is the most difficult (i.e, requires
the most energy, materials, and enzymes) to manufacture?
A.
ammonia; B.
urea; C. uric acid; D. all are equally difficult to manufacture
41. Name
the non-cellular material that lines the stomach.
42. True
or False All
people who have high levels of stomach acid acquire ulcers.
43. True
or False Some
medications, such as aspirin, can cause ulcers.
44. True or False Virtually all persons with duodenal
ulcers have Helicobacter pylori present in the duodenum.
45. What
is the most feasible way of overcoming Helicobacter pylori
infections and gastritis?
46. True
or False All
genetic strains of Helicobacter pylori are equally harmful.
47. Name
the human disease caused by the organism Mycobacterium tuberculosis.
48. Which
of the following may be caused by Helicobacter pylori?
A.
chronic superficial gastritis, which is an inflammation of the stomach; B. stomach ulcers; C. duodenal ulcers; D. stomach cancer; E. all of these.
49. What
has been the long-term response of the human body to infections of Helicobacter
pylori ?
A.
actively fight Helicobacter pylori, as we do most other harmful
bacteria; B.
recognize and build some antibodies but basically tolerate (i.e., ignore) Helicobacter
pylori; C. human bodies do not
recognize Helicobacter pylori as "foreign" and,
therefore, do not respond in any way to these bacteria.
50. True
or False Most
people with ulcers have normal amounts of stomach acid.