Exam 2: chapter 13

Question 1

the most common childhood cancers are

Answer 1

Leukemias and sarcomas

Question 2

list the risk/environmental factors associated with development of childhood cancer

Answer 2

o Chromosome abnormalities
- Aneuploidy, amplifications, deletions, translocations, and fragility
o Prenatal exposure (drugs and ionizing radiation)
o Childhood exposure (drugs, electromagnetic fields, viruses)

Question 3

Which of the following is TRUE regarding childhood cancer (aged 0-14 years)?
A. Most cancers are carcinomas.
B. Tumors of the nervous system are rare.
C. The most common type of cancer is leukemia.
D. The types of malignancies are similar to adult malignancies.

Answer 3

C. The most common type of cancer is leukemia

Question 4

Children with Down syndrome have an increased susceptibility to which type of cancer?
A. Wilms
B. Osteosarcoma
C. Acute leukemia
D. Retinoblastoma

Answer 4

C. acute leukemia

Question 5

Most childhood tumors originate from the _____________ layer.

A. embryonal
B. lymphatic
C. epithelial
D. mesodermal

Answer 5

D. mesodermal

Question 6

The causes of cancer in children are __________.

A. largely unknown
B. well-understood

Answer 6

A. largely unknown

Question 7

The prognosis for children diagnosed with cancer is generally very poor.

A. True
B. False

Answer 7

B. False

Question 8

The leading cause of cancer in children is ____________.

A. bone
B. lung
C. leukemia
D. brain

Answer 8

C. Leukemia