3-cells, tissues, and organs (1)
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CELLS, TISSUES, AND ORGANSPrepared by:Mrs. Sehrish
Dated 22-02-12
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OBJECTIVES
AT THE END OF THE LECTURE STUDENTS WILL BE ABLE TO:
Define the meaning of medical terminology of cells tissueand organs
Recognize and understand basic medical terms
Identify medical abbreviations
Spell and pronounce basic medical terminology
Analyze unfamiliar terms using the knowledge of word roots,suffixes and prefixes used in the medical language.
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Tissues:
Cells are organized into four basic types of tissues that perform specificfunctions
1. Epithelial tissues Epithelial tissue covers and protects body structuresand lines organs, vessels, and cavities.
2. Connective tissue Connective tissue supports and binds body structures.
It contains fibers and other nonliving materialbetween the cells. Examples are adipose (fat) tissue,cartilage, bone and blood
3. Muscle tissues Muscle tissue (root my/o) contracts to produce
movement.
4. Nervous tissue Nervous tissue (root neur/o) makes up the brain,spinal cord, and nerves. It coordinates and controlsbody responses by the transmission of electricalimpulses.
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BIOPSY:
Biopsy is the removal and examination of a living tissue to determine a diagnosis.Biopsy comes from the Greek word bios meaning life, opsis meaning vision. Togetherthey mean the visualization of living tissue.
IN VIVO:
"in the living body
IN VITRO:
literally means in glass ,and refers to procedures and experiments done in labs.
IN SITU:
means in its original place, used to refer to tumors that have not spread
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Technicolor terms
Leuk/o = white
leukemia (overabundance of white blood cells)
melan/o = black
melanoma (black tumor of the skin)
cyan/o = blue
cyanosis (blueness may be due to cold or not
enough oxygen in blood) xanth/o = yellow
xanthoma (yellow tumor)
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Tumor talkAdding - oma (a swelling) to organ and tissue word roots names tumors. Not all tumors
are malignant (cancerous). Many are benign (not life-threatening).
Aden/o = gland
adenoma
Lip/o = fat
lipoma
My/o = muscle
myoma
Lymph/o = lymph tissue
lymphoma
Carcin/o = malignant carcinoma
Osteo/o = bone
osteoma
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Thank you!