Tumor Immunology Flashcards
Benign tumors are characterized as:
a. Growing slowly
b. Resembling the parent tissue
c. Usually invading tissues (metastasizing)
d. Both a and b
c. Usually invading tissues (metastasizing)
Benign tumor arising from glands
Adenoma
Benign tumor arising from epithelial surfaces
Papillomas
Malignant tumor of connective tissue
Sarcoma
_______ Malignant tumor of glandular epithelium
(e.g., colon)
a. Sarcoma
b. Adenoma
c. Adenocarcinoma
d. Papillomas
c. Adenocarcinoma
Which of the following factors is not a risk factor in the development of cancer?
a. Smoking
b. Low-fat diet
c. Obesity
d. Sedentary lifestyle
b. Low-fat diet
- Risk factors associated with breast cancer include:
a. First-degree family history of breast cancer
b. Pregnancy after 30 years of age
c. Use of estrogen (oral contraceptives or hormone replacement)
d. All of the above
d. All of the above
Antibodies dominate body defenses against cancer.
FALSE
Tumors express antigens that can be recognized as foreign by the immune system of the tumor-bearing host.
TRUE
The normal immune response frequently fails to prevent the growth of tumors.
TRUE
The cells involved in the immune response to tumors are:
a. T lymphocytes, B lymphocytes, and macrophages
b. Cytotoxic T lymphocytes, NK cells, and macrophages
c. Neutrophils, lymphocytes, and monocytes
d. CD8+ lymphocytes, monocytes, and basophils
b. Cytotoxic T lymphocytes, NK cells, and macrophages
Which of the following is not an environmental factor associated with carcinogenesis?
a. Ultraviolet light
b. Organically grown herbs
c. Benzene
d. Asbestos
b. Organically grown herbs
The risk factor associated with the development of basal cell carcinoma or malignant melanoma is:
a. Infrared light
b. Sunless tanning lotions
c. Ultraviolet light
d. Strobe lights
c. Ultraviolet light
Patients with Down syndrome have a higher incidence of:
a. Leukemia
b. Breast cancer
c. Prostate cancer
d. Teratomas
a. Leukemia
Tumor cells typically carry _______ genetic change(s).
a. One
b. Two
c. Three to six
d. Multiple
d. Multiple
Cancer-predisposing genes may:
a. Affect a host’s ability to repair damage to DNA
b. Increase cell cohesiveness
c. Decrease cell motility
d. Enhance the host’s immune ability to recognize and eradicate incipient tumors
a. Affect a host’s ability to repair damage to DNA
Oncogenes are:
a. Genetic targets of carcinogens
b. Altered versions of normal genes
c. Detectable in 15% to 20% of a variety of human tumors
d. All of the above
d. All of the above
Mutation or overexpression of oncogenes
Results in the production of nonfunctional proteins that can no longer control cell proliferation