Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
What is cancer?
|
cancer is just unchecked growth
|
|
How does cancer arise?
|
it arises from a loss of normal growth conrol in tissues, the balance of old and new tissue is disrupted, cells can no longer self destruct
|
|
What is adoptosis?
|
cell suicide
|
|
What are the two mechanisms cancer is able to spread by?
|
invasion and metastasis
|
|
What is invasion?
|
direct migration and penetration by cancer cells into neighboring tissues
|
|
What is metastasis?
|
ability of cancer cells to penetrate into lymphatic and blood vessels, circulate through the bloodstream, and then invade normal tissues elsewhere in the body.
|
|
What does a doctor do when there is evidence of cancer?
|
biopsy using piece of tissue, and also microarrays are used to determine wich genes are turned on or off in the sample, and also proteomic profiles are used
|
|
What is a good way of identifity the different causes of cancer?
|
studying populations
|
|
What kind of cancer is predominant in japan, us, and australia?
|
japan has stomach, us has colon, and australiea has skin
|
|
How can a virus cause cancer?
|
a virus can insert nucleic acids into the chromosomes of an infected cell, and this cell can become malignatnt
|
|
What does HPV cause?
|
cervical cancer
|
|
What does the bacterium helicobacter pylori do?
|
it causes stomach ulcers, and cauases stomach cancer
|
|
How is breast cancer related to heredity?
|
5 percent of breast cancers are thought to be caused by a "Breast cancer susceptibility gene"
|
|
How often is hereditary conditions thought to be involved in all cancer cases?
|
less than 10%
|
|
How much us death does cancer account for?
|
one quarter, just behind heart disease
|
|
How has the cancer rate compared to other diseases changed?
|
it has only decrease slightly, while other diseases are down substantially
|
|
What is the most fatal cancer in men and women?
|
lung
|
|
What trend is there seen in lung cancer for women?
|
the death rate is more than 2 tiem what it was 25 years ago
|
|
What is PSA testing?
|
prostate specific antigen
|
|
What have breast cancer rates for women done?
|
after increasing rapidly in the 1980's they have leveled off due to more mamograms and less use of hrt
|
|
What does the american cancer society recommend in our diet to help prevent cancer?
|
5 or more serving of fruit and vegetables
|
|
What does AMS recommend for exercise for cancer?
|
30 minutes 5 days a week
|
|
What percentage of adults don’t engage in leisure time activity?
|
one fourth
|
|
What has happened to the prevalence of obesity in kids since 1980?
|
it has tripled
|
|
How does obesity compare in states to 1992?
|
in 92 just 12 had 50% obesity, now they all do today
|