Chapter 3/Pathology 9/24

Card Set Information

Author:
RadTherapy
ID:
173086
Filename:
Chapter 3/Pathology 9/24
Updated:
2012-09-24 18:36:22
Tags:
radiation therapy oncology pathology imaging radiography
Folders:

Description:
Chapter 3 Pathology/ 9/24/12 Principles and Practice of Radiation Therapy
Show Answers:

Home > Flashcards > Print Preview

The flashcards below were created by user RadTherapy on FreezingBlue Flashcards. What would you like to do?


  1. DNA s the material from which __________ are made.
    genes
  2. Individual genes are are assigned specific loci(or positions) on 
    protein structures called___________.
    chromosomes
  3. The cell contains several nucleoli which are organelles that facillitate________ asssembly.
    ribosome
  4. Woven throughout the cytoplasm is a filamentous membrane called the _____________.
    endoplasmic reticulum.
  5. The endoplasmic reticulum is continous with the___________
    and houses the_____________.
    nuclear membrane, ribosomes
  6. Between he nucleus and the cell wall  is as substance called
    _________ made from__________and_________.
    cytoplasm, cytosol, extranuclear organelles
  7. Which organnelle is responsible for proten synthesis?
    ribosomes
  8. Which organelle stores and manages intracellular substances?
    Golgi apparatus
  9. This organelle  is important for intracellular digestion.
    lysosomes
  10. ___________are organalles that harbor specific enzyme systems which facilitate certain metabolic processes.
    peroxisomes
  11. Which organelle produces ATP?
    mitochondria
  12. ___________function in cytoplasmic storage
    vacuoles
  13. ____________ is the source of energy that drives intracellular metabolism.
    ATP
  14. What are the four phase of the cell cycle?
    • G1, S, G2, Mitosis
    • *note
    • (G0 "the pit stop of the cell cycle" is not one of the four phases)
  15. ______is the period before duplication or synthesis of DNA in the nucleus.
    G1
  16. In______living cells are fully functioning but not programmed for mitosis.
    GO
  17. The _____  _____  is the observable sequenceof events pursued during the life span of a dividing cell.
    cell cycle
  18. The _________ phase is extremely variable in length.
    G1
  19. The________phase is the period in which nuclear DNA is synthesized and chromosomes are duplicated.
    S
  20. During _________phase, the cell is growng, producng proteins and organelles and discharging it's metabolic responsiblities.
    G2
  21. The shortest phase of the cell cycle is the___________ phase.
    M phase(mitosis)
  22. Radiation is most effective during the ______phase.
    M
  23. DNA is composed of a series of _________.
    deoxyribonucleotides
  24. Deoxyribonucleotides,which are are the building blocks of ________  are composed of three chemical                                                                                                                                                                                                                                                                                                                           components: _________, ________, and __________.
    phospate group, deoxribose or ribose(5 carbon sugar)  depending on wheeher it's DNA or RNA, and a nitrogenous base.
  25. As long as cells can maintain themselves in  a range of normal function, they exist in a state of _____________.
    homeostasis.
  26. Cells maintain themselves in a state of homeostasis by elaborating a vast array of _______ and _________ that facilitate adaption to physiologic and pathologic stress.
    proteins ,macromolecules
  27. ____________ is the branch of medicine devoted to the study and understanding of disease.
    pathology
  28. Every clinical disease has its inception with some kind of _____________ injury or malfunction that is ultimately expressed at the __________level of  cellular function.
    cellular,molecular
  29. All cells have the ability to produce______ and maintain normal function by producing __________ and _______ to adapt against physiologic and pathologic stress.
    energy, proteins, macromolecules
  30. Changes in cellular structure can usually be seen under the microscope and can be divided into two broad catagories:
    _____________ and _____________.
    irreversible, reversible
  31. ____________is the hallmark of reversible damage to a cell.
    cellular swelling
  32. The monitoring of and response to tissue damage is called the 
    _____________.
    inflammatory reaction


    • clinical features are: rubor, calor, tumor, dolor
    • *To remember rubor, calor, tumor, dolar I use the pnemonic: Real Clinicians Don't Take Five The five cardinal signs for inflammation (the fifth sign is loss of function )
    • redness, heat, swelling, and pain
  33. Also called inflammatory mediators, these substances which are byproducts of tissue injury,play a role in nerve stimulation and pain.
    cytokines
  34. A complex immunochemical reaction initiated by normal cells that have been injured or damaged.
    the inflammatory response
  35. Common causes of tissue damage(which lead to the inflammatory response):
    hypoxia, microbial infections, IONIZING RADIATION, chemicals,allergic or immune reactions(e.g. rheumatoid arthritis), and CANCER
  36. The most common cause of tissue damage is________.
    hypoxia

    • vascular occlusive disease causes local hypoxia. The RT sees generalized hypoxia as a resultof cardiopulmonary compromise secondary to acute compression of the superior vena cava caused by lung ca. This is a life threatening emergency.
    • Generelized hypoxia due to carbon monoxide or cyanide poisoning DO NOT involve inflammation.
  37. What is the most obvious and common cause of tissue damage seen by the radiation therapist?


    *for you over thinkers(Jeanine :) ) this is not a trick question
    ionizing radiation
  38. _____________is the accidental leakage of intravenous drugs into the tissue surrounding the venipuncture, either through a weak portion of the vein or because the needle punctured the vein and the infusion goes directly into the surrounding tissue. It is the cause of an intense local inflammatory response.
    Extravasation
  39. What are the six important causes of cell damage?
    radiation,hypoxia,chemicals,microorganisms,immunological reactions, neoplasms
  40. The six important causes of cell damage:radiation,hypoxia,chemicals,microorgamisms,immonological reactions, and neoplasms all eventually lead to the formation of ___________  ___________ which are destructive to nucleic acids and other vital cellular components.
    free radicals
  41. Cancer is the ___________ leading cause of death in the United States.
    2nd
  42. More than_________different kinds of cancers have been recognized and catagorized
    100
  43. Although______tumors are often large they do not invade surrounding tissue or spread distantly to produce metastases.
    benign
  44. ____________areise from epithelial tissue.
    carcinomas
  45. __________arise from in connective tissue.
    sarcomas
  46. Well differentiated tumors tend to grow more ______
    than poorly differentiated ones.
    slowly

    The speed of growth correlates roughly to the degree of diferentiation of the cells.
  47. __________tend to metastasize via lymphatic channels and 
    _____________tend metastasize through blood vessel invasion.
    carcinoma, sarcoma
  48. The functionds of epithelial cells are________,__________,
    or__________.
    protective, absorptive, secretory

    *epithelial cell cover surfaces(protect), line cavities like the colon(absorb), or form glands (which secrete)
  49. Are there more carcinomas or sarcomas?
    carcinomas
  50. Cancer cells that dispay no diferentiation are considered
    ___________.
    anaplastic

    anaplastic tumors are more aggresive
  51.  _________describes the greater variabiliy in size and shape of undiferentiated tumor cells.
    pleomorphic
  52. deeply stained nuclei
    hyperchromatic
  53. Percival Pott is associated with work done the mid 18th century with what kind of cancer with who?
    scrotum cancer, chimney sweeps

    *important because it was the first identification of a chemical carcinogenesis
  54. What did   Yamagiwa and Ichikawa confirm?
    They confirmed an association between cancer and byproducts of hydrocarbon combustion .

    • They induced skin cancer on lab animals with chronic applications of coal tar.
    • Remember:
    • 1775 Percival Pott>Scrotum Cancer/soot
    • 1915 Yamagiwa and Ichikawa>Skin cancer/coal tar
  55. Most chemical carcinogens arecompounds containing atoms deficient in _________.
    electrons

    Most chemical carcinogens require  metabolic activation to assume carcinogenic statures. 
  56. Most chemical carcinogens require  metabolic activation to assume carcinogenic statures. A few compounds, such as ____________, can directly induce neoplasia.
    chemotherapeutic alkylating agents
  57.  Carcinogens that produces mutations that provokes stategic damage sufficient to have potential neoplastic consequences are called ______________.
    initiators
  58. The time between the initiating event that caused the cancer (exposure to a carcinogen an subsequent strategic damage) and the clinical apperance of a tumor is called the _________.
    latent period


    *although there is a clear association between a carcinogen and cancer, because a  specific carcinogen usually does not cause everyone to get cancer(at least not at the same doses(take cigarette smoking,for example)-the initiation of cancer in each person is a complex mix of factors(genetics, lifestlye, etc.)
  59. Programmed cell death is called___________ and* may *may not  occur as it does normally during the latent period.

    *choose  1. may   or  2. may not
    apoptosis, may not
  60. During the latent period , _______ _________  may become
    irregular.
    cellular differentiation
  61. A group of chemicals called ________have the effect of hastening and intensifying abnormal growth characteristics and are set in motion by the _________.
    promoters, initiators
  62. ___________ are small packets of genetic material(DNA or RNA) enclosed in capsules.
    viruses
  63. The genetic complement found in the chromosome of a given organism is the________.
    genome
  64. Genes of viral derivation that have become incorporated into chromosomes of the host cell and are concerned with the regulation of cell growth are called _____ _______.
    viral oncogenes
  65. What are the four common viruses implicated in human neoplasia?
    • EBV(Epstein-Barr)Burkitt's lymphoma, immunoblastic lymphoma, and nasopharyngeal cancers
    • HPV:(Human Papillomavirus)  uterine cervical cancer & others
    • HBV: (Hepatitis B): hepatocellular carcinoma
    • HTLV-1: (The Human T-lymphotropic virus Type I): is a human RNA retrovirus that is known to cause a type of cancer, referred to as adult T-cellleukemia and lymphoma, and a demyelinating disease called HTLV-I associated myelopathy/Tropical spastic paraparesis (HAM/TSP).
  66. ______________are the building blocks of life.
    Proteins
  67. Mitosis usually occurs in about______hrs.



    *In chapter 3 but probably will be on Scott's test
    I would rather cover the entire Chapter to be safe
    2 hours
  68. _______  _______ is a specification that describes the apparent aggressiveness of the cancer as determined by cytological and morphological criteria.
    Tumor grade
  69. Which are more aggressive, low grade or high grade tumors?
    high grade
  70. Explain the three different kinds of biopsies and give specific  examples of each one.
    • 1.A PAP smear is an example of Exfoliative cytology. 
    • Single cells are obtained from various surfaces or secretion shed by the tumor(or area being biopsied) and are then studied by the pathologist,
    • 2. A Fine -needle aspiration: This is used for many differnent kinds of tumors: e.g. breast, thyroid-a thin needle  is inserted into the  lump  a sample of cells or fluid is removed for study by the pathologist.
    • 3. Open biopsy: this is the most invasive and can be either incisional(where part of the tumor is taken out) excisional(where the whole thing is removed)

    *trick for remembering incisional & excisional biopsies

    •  INCISIONAL part of the tumor is still  IN.
    • EXCISIONAL  the tumor has EXITED

What would you like to do?

Home > Flashcards > Print Preview