PBS 2.2.1

MRI - magnetic resonance imaging (inside look without surgery)

Differential Diagnosis - a list of possible diseases or disorders based on the information collected during diagnosis

Somatic Cell - any cell that isn’t a sex cell

Mitosis - cellular replication

• Interphase - DNA replicates

• Prophase - nuclear envelope disappears, chromosomes condense and pair with sister chromatid, mitotic spindle forms

• Metaphase - chromosomes line up in center, fibers attach and pull sister chromatids

• Anaphase - sister chromatids pulled to opposite sides

• Telophase and Cytokinesis - cell splits and daughter cells identical

Tumors - lumps or masses of tissue caused by uncontrolled cell division

Benign - generally considered harmless; will not spread elsewhere and are not cancer

Malignant - cancerous tumors - harmful; can spread elsewhere

Metastasis - the spread of cancerous cells to other tissues/parts of the body

Biopsy - removal of cells for studying

Cancer - a disease caused when cells divide uncontrollably and spread into other tissues

Pathologist - examines bodies, tissues, and fluid samples to look for changes and other signs of disease, collaborate with other medical professionals to provide a diagnosis

Basal Cell Carcinoma - skin cell cancer where cells are darker and rounder