HSC 4551 Survey of Human Diseases ch. 4-6 Questions
with 100% Verified Answers Latest Update
Question: What is cancer?
cells that have been disrupted by trauma
uncontrolled growth of abnormal cells in the body
organ disease caused by an unhealthy lifestyle
tumors that form in the body
Answer:
uncontrolled growth of abnormal cells in the body
Question: What is the definition of "metastasis"?
spread of abnormal, cancerous cells
discovery of a tumor on an x-ray
identification of a non-cancerous mass
removal of cancerous cells
Answer:
spread of abnormal, cancerous cells
Question: What do the cells of a malignant tumor look like under a microscope?
there are no distinct cells in a malignant tumor
they do not have a uniform appearance
they are much smaller than the cells in normal tissue
similar to the cells of the surrounding tissue
Answer:
they do not have a uniform appearance
Question: Why is a benign tumor easier to remove than a malignant tumor?
it is large and easy to grasp with surgical tools
it is encapsulated
it has more blood vessels
it does not have a covering that separates is from surrounding tissues
Answer:
it is encapsulated
Question: Which describes a benign tumor of an epithelial surface?
cyst
carcinoma
,polyp
sarcoma
Answer:
polyp
Question: The names of malignant tumors have two parts, a prefix and a suffix. What is the
system for choosing these two parts?
the prefix names the type of cells that are cancerous and the suffix names the category of
drug used to treat them
the prefix names the tissue of origin and the suffix describes whether the cancerous cells
are epithelial or supporting
The prefix names where the cancer is located and the suffix grades its severity
The prefix describes the shape of the tumor and the suffix indicates whether or not it has
spread
Answer:
the prefix names the tissue of origin and the suffix describes whether the cancerous cells
are epithelial or supporting
Question: The most important risk factor for cancer is
lifestyle
diet
environment
age
Answer:
age
Question: How is the immune system related to the development of cancer?
it repairs abnormal cells
it has natural flaws that contribute to the development of cancer
it should recognize and eliminate abnormal cells
it removes of toxins that may damage cells and cause mutations
Answer:
it should recognize and eliminate abnormal cells
Question: Which of these are sources of ionizing radiation?
CT scans
chemotherapy
microwaves
MRIs
, Answer:
CT scans
Question: What is the cause of all cancers?
mutation of the genes that control cell division and cell death
disruption of cell walls leading to an irregular shape
smoking and drug use
a decrease in oxygen supply to the cancerous area
Answer:
mutation of the genes that control cell division and cell death
Question: How would a malfunction in the oncogene contribute to the development of
cancer?
failure to signal the appropriate time for cell death
failure to alert the immune system to the presence of cancerous cells
failure to tell the cells when to divide and when not to divide
failure to remove abnormal cells persisting in the tissues
Answer:
failure to tell the cells when to divide and when not to divide
Question: Environmental substances that damage the DNA in cells and cause mutations
resulting in cancer are known as
carcinogens
suppressors
apoptosis
oncogenes
Answer:
carcinogens
Question: What limits the potential for tumor marker tests to accurately diagnose cancer?
tumor markers are sometimes produced by normal cells
they must be drawn so frequently that patients often decline complete testing
the tests are very expensive and rarely covered by insurance
some cancers produce chemicals that break down tumor markers
Answer:
tumor markers are sometimes produced by normal cells
Question: How does a mammogram help to diagnose cancer?
with 100% Verified Answers Latest Update
Question: What is cancer?
cells that have been disrupted by trauma
uncontrolled growth of abnormal cells in the body
organ disease caused by an unhealthy lifestyle
tumors that form in the body
Answer:
uncontrolled growth of abnormal cells in the body
Question: What is the definition of "metastasis"?
spread of abnormal, cancerous cells
discovery of a tumor on an x-ray
identification of a non-cancerous mass
removal of cancerous cells
Answer:
spread of abnormal, cancerous cells
Question: What do the cells of a malignant tumor look like under a microscope?
there are no distinct cells in a malignant tumor
they do not have a uniform appearance
they are much smaller than the cells in normal tissue
similar to the cells of the surrounding tissue
Answer:
they do not have a uniform appearance
Question: Why is a benign tumor easier to remove than a malignant tumor?
it is large and easy to grasp with surgical tools
it is encapsulated
it has more blood vessels
it does not have a covering that separates is from surrounding tissues
Answer:
it is encapsulated
Question: Which describes a benign tumor of an epithelial surface?
cyst
carcinoma
,polyp
sarcoma
Answer:
polyp
Question: The names of malignant tumors have two parts, a prefix and a suffix. What is the
system for choosing these two parts?
the prefix names the type of cells that are cancerous and the suffix names the category of
drug used to treat them
the prefix names the tissue of origin and the suffix describes whether the cancerous cells
are epithelial or supporting
The prefix names where the cancer is located and the suffix grades its severity
The prefix describes the shape of the tumor and the suffix indicates whether or not it has
spread
Answer:
the prefix names the tissue of origin and the suffix describes whether the cancerous cells
are epithelial or supporting
Question: The most important risk factor for cancer is
lifestyle
diet
environment
age
Answer:
age
Question: How is the immune system related to the development of cancer?
it repairs abnormal cells
it has natural flaws that contribute to the development of cancer
it should recognize and eliminate abnormal cells
it removes of toxins that may damage cells and cause mutations
Answer:
it should recognize and eliminate abnormal cells
Question: Which of these are sources of ionizing radiation?
CT scans
chemotherapy
microwaves
MRIs
, Answer:
CT scans
Question: What is the cause of all cancers?
mutation of the genes that control cell division and cell death
disruption of cell walls leading to an irregular shape
smoking and drug use
a decrease in oxygen supply to the cancerous area
Answer:
mutation of the genes that control cell division and cell death
Question: How would a malfunction in the oncogene contribute to the development of
cancer?
failure to signal the appropriate time for cell death
failure to alert the immune system to the presence of cancerous cells
failure to tell the cells when to divide and when not to divide
failure to remove abnormal cells persisting in the tissues
Answer:
failure to tell the cells when to divide and when not to divide
Question: Environmental substances that damage the DNA in cells and cause mutations
resulting in cancer are known as
carcinogens
suppressors
apoptosis
oncogenes
Answer:
carcinogens
Question: What limits the potential for tumor marker tests to accurately diagnose cancer?
tumor markers are sometimes produced by normal cells
they must be drawn so frequently that patients often decline complete testing
the tests are very expensive and rarely covered by insurance
some cancers produce chemicals that break down tumor markers
Answer:
tumor markers are sometimes produced by normal cells
Question: How does a mammogram help to diagnose cancer?
