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Genetic information is stored in the DNA
Where is genetic
Every cell in the body contains the same genetic
information stored?
information
Chromosomes allow for cell division to occur
They carry hereditary information.
What is the purpose of DNA molecules are too big to fit inside the cells
Chromosomes? Chromosomes condense the DNA and ensure that DNA
makes it into the cells by holding them in and keeping
them attached to proteins (histones)
22 pairs of chromosomes that are alike in males and
females
What are Autosomes? unlike sex chromosomes that make up the 23rd pair
male= XY
Female=XX
uncoordinated
autonomous
Characteristics of cancer lacks normal regulatory controls over cell growth and
growth division
tends to increase in size and grow after stimulus ceases
or needs of organism are met
A Hematologic cancer of the leukocytes
What is Leukemia?
Impairs immune system
, Seeding-tumor cells shed into other spaces in the body
to travel
Cells travel through the blood stream and lymph system
to where they want to be
How does cancer
Also use angiogenesis-secrete factors that enable them
Metastasize?
to develop new blood vessels to feed itself
Loss of oxygen and nutrients due to tremendous growth
triggers the release of MET tyrosine kinase receptor that
activates invasive behavior
The development of a secondary tumor in a location
distant from the primary tumor
Metastasis
Tumor cells usually traveled through blood and lymph
system to the new location
Critically important in diagnosing the correct cancer
and histology because metastasis could have lead to
Tissue Biopsy the travel of a tumor to the new area. Biopsy will reveal
some of the origin of the cells
ex. uterine tissue in the lungs
Represents a secondary prevention measure for the
early recognition of cancer in an otherwise
asymptomatic population
Best results for cancer treatment when the tumor is
small and has not metastasized
Cancer Screening Improved outcomes with:
-Mammograms
-Pap Smear
-colon and rectum (fecal occult, colonoscopy)
-Prostate
-Malignant melanoma (self examination)
Varies by properties of the stressor and the condition of
Stress Response
the person being stressed
Avoid coping behaviors that impose a risk to health
Purposeful priority setting and problem solving
Relaxation
Stress Reduction Guided imagery
Music therapy
Massage
Biofeedback