bio pt6

Cells within the inside of a tumor secrete growth factors, which cause capillaries to grow toward the tumor. This process is called contributes to the growth and spread of the tumor.

angiogenesis

Cancer cells

cells that grow and divide continuously at an unregulated pace

Which characteristic corresponds with Stage 2 of breast cancer?

tumor grew, considered invasive, still located in the breast, tumor smaller 2cm or increased 2-5cm detected near multiple lymph nodes

Malignant tumors need nutrients and oxygen to grow. From what structures do they obtain nutrients and oxygen?

blood vessels, capillaries or lymphatic vessels

Which characteristic corresponds with Stage 3 of breast cancer?

cancer became more invasive affecting more of the breast tissue, spread to more than 4 lymph nodes near breastbone or arm, tumor larger than 5cm

Which characteristic corresponds with Stage 1 of breast cancer?

cancers located in small area, tumors started to invade surrounding tissue, tumor smaller than 2cm, small groups of cancer surrounding lymph node

Which characteristic corresponds with Stage 0 of breast cancer?

cancers small in area, tumor can be detected early and not yet invaded surrounding tissue

As cancerous cells accumulate mutations, the cells will continue to divide rapidly. This uncontrolled division results in

cells becoming less specialized; cells growing in blood vessels; a change in cellular appearance; cells moving to different parts of the body;

Benign tumors are not considered a threat because they

do not spread or cause more tumors.

Which characteristic corresponds with Stage 4 of breast cancer?

fully metastasized, spread to organs such as heart, brain, lungs, liver

The appearance of cancerous cells differs from normal cells. If you were to view cancerous cells under the microscope, you would notice enlarge

the nucleus is larger and darker

The main difference between Stage 0 and Stage 1 cancer is that in Stage 1, the cancer cells have

been found surrounding lymph nodes

If a breast cancer patient has not responded to treatment and the cancer has spread to the brain, the patient is classified as having stage_____ cancer.

stage 4