Neoplastic Disorders (week 10)

Question 1

neoplastic disease

Answer 1

includes many different diseases that occur due to accumulation of genetic changes due to heredity, environment, and behavior

Question 2

what is a tumor

Answer 2

overgrowth of tissue independent to the controls that govern cell division and serves no use to the body

Question 3

neoplasm

Answer 3

new tumor growth

Question 4

what does cancer refer to

Answer 4

malignant tumor (aggressively expands and metastasizing)

Question 5

characteristics of benign tumors

Answer 5

slow growers
not invasive to other tissues
encapsulated
cells do not divide rapidly
do not metastasize

Question 6

characteristics of malignant tumors

Answer 6

grow rapidly
no encapsulation
rapid cell division
metastasize
invasive to local tissue
cross basement membranes

Question 7

basement membrane

Answer 7

connective tissue structure that holds cells together, usually for a particular organ

Question 8

carcinogenesis

Answer 8

initiation of cancer

multistage process

Question 9

4 stages of carcinogenesis

Answer 9

initiation
promotion
transformation
progression

Question 10

initiation

Answer 10

cell undergoes irreversible mutation

Question 11

promotion

Answer 11

mutated cell divides and produces a tumor

Question 12

transformation

Answer 12

mutated cells become cancerous (cells break off and metastasize)

Question 13

progression

Answer 13

cell proliferation and tumor invasion into tissues

Question 14

carcinoma

Answer 14

arising from epithelial tissue

Question 15

adenocarcinoma

Answer 15

arising from ductal or glandular tissue

Question 16

sarcoma

Answer 16

arising from connective tissue

Question 17

lymphoma

Answer 17

arising from lymphatic tissue

Question 18

leukemia

Answer 18

arising from blood forming tissue (marrow)

Question 19

normal characteristics of cells

Answer 19

contact inhibition
anchorage dependent
limited life span
differentiation
glycoprotein markers on membrane

Question 20

contact inhibition

Answer 20

cell division stops when dividing cells come into contact with other cells

Question 21

anchorage dependent

Answer 21

cells remain attached to basement membrane

Question 22

differentiation

Answer 22

specific purpose of cell