Epithelial Tissues & Connective Tissues test 2
Terms
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- Multi-layered tissue. Cells along Basement membrane are active and dividing. Basal cells are cubodial/comlumnar as they mature and are pushed to the surface they become squamous cells. What Epi tissue?
- Stratified Squamous
- Name the Location and Function of Stratified Squamous Epithelium?
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L/ Lining of mouth, esophagus, vagina.
F/ Protects underlying tissue is areas prone to abrasion. -
Many layers
basal-cubodial
Superficial/ columnar
L/ Large mammary ducts
F/ Secretion/ protection - Stratified cubodial Epi.
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1.Appears stratified
2.Nuclei are found at different levels
3.Vary in Shape & Height
4.Each cell forms an attachment w/ basement membrane - Pseudostratified Epithelium
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pseudostratified cells are generally ciliated often assoc. w/ goblet cells.
Name the location and Function of this type of tissue? -
L/ Respiratory Tract
F/ Surface Layer of mucosa traps particles from the lungs. - Tell about the cells, location, and function of Transitional Epi.
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C/ Stratified layers w/ basal layer cubodial/columnar. Superficial Layer composed of cubodial or squamous.
F/ Form leakproof barrier to prevent diffusion of scalding urine into delicate enviro. of abdominal cavity.
L/ Urinary Tract. - Cell or group of cells that have the ability to maufacture and discharge a secretion and are derived from epi.
- Gland
- Name Ways Glands are Classified?
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Prescence or abscence of ducts.
# of cells that compose them.
Type of secretion
Shape of ducts
Complexity of gland -
No ducts
secretions distributed throughout body
Produce & Secrete regulartory chem. hormones into the blood stream or lymph system carried to other regions of the body. - Endocrine Glands
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Have Ducts.
Most common.
Discharge secretions via their ducts directly into local areas.
Secretions are local and normally do not enter bloodstream. - Exocrine glands
- Name 3 Components of Connetive Tissue?
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Fibers
Ground Substance
Cells - Name functions of Connective Tissue
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Forms structural connections between tissues
Reserve for Energy
Medium for trasport
immune protection
Frame that supports the body
Heat Production -
What is the material that is the medium in which cells exchange nutrients & waste w/ the bloodstream.
Shock absorber
protects delicate cells that surround it - Ground Substance
- Name the 3 type of connective tissue fibers?
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Collagenous
Elastic
Reticular - Fiber that is found in Ligaments and tendons?
- Collagenous Fiber
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Thick strong strands.
composed of bundled microfibrils
Great tensile strength.
Sometimes called "white Fiber"
In tissues that are constantly being pulled and stretched. - Collagenous Fibers
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Composed of Collagen
Not thick
Thin delicate
Branch into complicated networks
Forms a net for support of highly cellular organs
Such as endocrine glands, & lymph nodes - Reticular Fibers
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Brached to form complex networks
Composed of bundles of microfibrils
Can be stretched & contract.
Occur in tissues that are exposed to stretching.
Such as: Vocal cords, lungs, skin,
Sometimes called yellow fibers - Elastic Fibers
- What are the 2 major types of cells in Connective tissue?
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Fixed
Free (transient) - Name the Fixed Cells
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Fibroblast
Adipocytes
Reticular - What are adipocyte cells?
- They are fat cells. When they cluster into groups they form adipose tissue.
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Large irregulary shaped cells.
manufacture & secrete fibers & gound substance to form their paticular matrix. Each connective tissue has their own? - Fibroblast
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Flat star shaped cells
Long outreaching arms that touch other cells. Form netlike connections throughout the tissue they compose. - Reticular Cells
- What is the function and Location of Reticular cells?
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F/ involved in the immune respone.
L/ found in tissues that are part of the immune system.
Lymph nodes, spleen, bone marrow. - What are free cells?
- cells that pass in and out of the connective tissue. Generally repair & protect tissues.
- Name the Free Cells of Connective Tissue?
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Mast cells
Leuckocytes
Macrophages (can be fixed or free) - Oval, dark staining cells that contain heparin & histamine when released into tissues initiate an inflammatory response.
- Mast Cells
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Move into connective tissue in large #'s during times of infection.
Manufactures Antibodies
White Blood Cells - Leukocytes
- Increases blood flow to the area by making cappillaries leaky.
- Histamine
- Prevents blood from clotting and ensures the pathways for increased blood flow remains open.
- Heparin
- Found near blood vessels to release their contents directly into the bloodstream and guard against proteins or microbes.
- mast cells
- Massive irregular shaped cells that have phagocytizing capabilities.
- macrophages
- Name the broad categories of Connective Tissue.
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Connective Tissue Proper
Spec. Connetive tissue -
Largest Classification
contains all except blood, cartilage, and bone. - Connective Tissue Proper
- Name the 4 common types of membranes
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Mucous
Serous
Cutaneous
Synovial fluid