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A&P I > (Pt.2) Connective Tissue Types > Flashcards

(Pt.2) Connective Tissue Types Flashcards

1
Q

What is the major difference with the types of connective tissue

A
  • major difference reflect cell types, types and relative amounts of fiber
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2
Q

What is Mesenchyme

A
  • fluid ground substance with fine sparse fibers and star shaped mesenchymal cells
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3
Q

What are the types of Connective tissue

A

Connective tissue proper
Bone
Cartilage
Blood

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4
Q

What are the subclasses of Connective tissue proper

A

Loose:

  • Areolar
  • Adipose
  • Reticular

Dense:

  • dense regular
  • dense irregular
  • elastic
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5
Q

What is areolar connective tissue (ct proper)

A
  • most widely distributed in body
  • Universal packing material btw tissues
  • CT, epithelia rest upon
  • present in all mucous, mem as lamina propia
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6
Q

What are the functions of areolar ct

A

• Supporting/ binding other tissues (Job of tibers)
• holding body Fluids (grnd sub role)
- defend against infection (Via activity of WBC’s/macrophages)
• Storing nutrients as Fat in adipocytes (fat Cells)

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7
Q

What does adipose ct structural appearance look like and what does it’s appearance allow it to do

A

Struct ft, loose arrangement of fibers & because loose nature:

  • Provide reservoir of water/Salts for surrounding body tissues
  • hold more fluid than entire blood Stream
  • where, all body Cells retain nutrients/release waste
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8
Q

What are the cells of Areolar CT

A

Cells:

  • fibroblast (Predominant)
  • Macrophages (many)
  • adipocytes (Singly)
  • Mast Cells (sometimes)
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9
Q

What is the Ground Substance like of Areolar CT

A
  • Viscous like molasses (be ,high conc. of hyaluronic acid)
  • hinder movemntofCellS
  • wbes secrete enzyme (hyaluronidase) to liquify
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10
Q

What is Adipose CT (CT Proper)

A
  • Similar to are Areolar CT
  • nutrient Storing, greater
  • richly Vascularized (high metabolic activity)
  • Shock absorber, energy Storage site and Usually in SubCutaneous tissue
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11
Q

What is the matrix like of Adipose Tissue

A
  • matrix, Scanty and cells packed close together
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12
Q

What does fat do, and it’s a poor what (about Adipose tissue)

A

stop heat loss from body fat is a poor Conductor

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13
Q

What are the other sites, fat build (Adipose tissue)

A
  • Kidney, abdomen, hips, behind eyeballs
  • Small amounts serve local nutrient needs of highly active organs
    (heart, lymph nodes, within muscles)
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14
Q

What is White fat, and what does it do (adipose tissue)

A

white fat white (adipose tissue)

- store nutrients mainly for Other cells

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15
Q

What is brown fat, and it’s location

A 
Brown Fat (Brown adipose tissue)
- richly Vascular, mainly on baby’s back
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16
Q

Where is the location of brown fat for adults (adipose tissue)

A
  • collar bone, neck, spine, abdomen
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17
Q

What is Reticular Connective Tissue (CT proper)

A
  • resemble Areolar CT
  • Fibers widely distributed in body
  • limited in certain sites
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18
Q

What kind of fibers does Reticular CT have what are they doing in the matrix

A
  • only reticular fibers in matrix that form a delicate
    network which fibroblasts
    called reticular cells are scattered
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19
Q

What does Reticular CT form

A

labyrinth like Stroma/internal

frame work that can support many free blood cells, Spleen, lymph nodes and bone marrow

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20
Q

What do all Connective Tissue- Proper Dense CT have

A
  • all have Fibers tht are prominent element, so

called fibrous CT

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21
Q

What is Dense Regular Connective Tissue and what fibers does it have

A
  • Closely Packed abundant of collagen fiber that are parallel and running
    in the same direction
  • great resistance to tension
  • Few cells other than Fibroblast and poorly
    vascularized
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22
Q

Can Dense Regular CT stretch

A
  • Collagen fibers are
    Slightly wavy, it can
    stretch a little but once Straighten out theres
    no further give
23
Q

What does Dense Regular CT form with its enormous tensile strength

A

With enormous tensile strength, it forms:
- tendons: cords that attach muscle to bone

  • ligaments: bind bones together at Joints, more stretchy and elastic fibers
  • aponeuroses: flat sheet like tendons tht attach other
    muscles to muscle or to bones
24
Q

What is Dense irregular CT (CT proper)

A

-Same Struct as regular variety, but collagen fibers are much thicker/ arranged
irregularly, meaning run in
all directions

25
Q

What does Dense irregular CT form

A
  • form sheets in body area, where tension is exerted in different directions
  • form fibrous joint capsules and Fibrous coverings that cover some organs (Kidneys,
    bones, cartilages, muscles, nerves)
26
Q

Where is dense irregular CT found

A

Skin, as leathery dermis

27
Q

What is Elastic Connective Tissue

A
  • dense regular CT in a few ligament Structures, like those connecting adjacent vertebrae, being very elastic
28
Q

Where is Elastic CT found

A

In the walls of many large arteries (stretchy sheets)

29
Q

What is Cartilage

A
  • stand up to both tension/compression
  • qualities of bone and dense CT
  • Tougn but Flexible
30
Q

Does Cartilage have nerve fibers

A
  • Lack nerve fibers and avascular
31
Q

What is the ground substance and matrix of Cartilage like

A
  • ground substance, quite firm (high GAG, hyaluronic acid and firm bound collagen fibers)
  • matrix : exceptional amount of tissue Fluid
32
Q

What does movement of tissue help with for Cartilage

A

rebound after compressed

and help nourish cells

33
Q

What are the three varieties of Cartilage

A
  • elastic
  • hyaline
  • reticular
  • each dominated by a certain fiber
34
Q

What is Hyaline Cartilage

A
  • Most abundant Cartilage in
    body
  • Provide firm support W Some pliability
35
Q

What fibers does hyaline cartilage contain, and explain its matrix

A
  • large # of collagen Fibers, not apparent
  • matrix appear glassy (hyal 5 glass,transparent) blue-white
    when viewed by unaided eye
36
Q

What are the cells in hyaline cartilage

A
  • Chondrocytes (1-10% volume)
37
Q

Where is hyaline cartilage found

A
  • end of long bone (as articulated cartilage)
  • support tip of nose
  • connect rib to sternum
  • support most of respiratory system passages
  • make most of embryonic skeleton before bone
38
Q

What is Elastic Cartilage and what fibers it contains

A
  • histology ally identical to hyaline cartilage

- more elastic fibers

39
Q

Where is Elastic Cartilage found

A
  • where strength and exceptional stretchability are needed

- skeleton of external ear/ epiglottis

40
Q

What is Fibrocartilage

A

-structuraly intermediate btw hyaline. C/ dense regular CT

41
Q

What are the cells, fibers of fibrocartilage, and what it look like

A
  • rows of chondrocytes (cartilage feature) alternate with rows of thick collagen fibers (characteristic of dense regular CT)
42
Q

Where is fibrocartilage found

A
  • found where strong support and ability to withstand heavy pressure are required, because resist both compression/tension very well
  • intervertebral discs
43
Q

What is Bone

A
  • because rocklike hardness, it has exceptional ability to protect/ Support body Structures
  • bones of the skeleton provide cavities for Storing Fat / Synthesizing blood cells
  • Similar to cartilage, but more rigid/ harder
44
Q

What is the fiber in bone, and does it do for the matrix

A
  • in addition to more abundant collagen fibers, bone has an added matrix element, inorganic calcium Salts (bone Salts)
45
Q

What is the cell of Bone and what does it do

A
  • osteocytes

-osteoblast make organic portion of matrix
, the bone salts are deposited on and between the Fibers

46
Q

Where do mature bone cells reside

A
  • Lacunae (matrix, they’ve made)
47
Q

What do cross sections of bone tissue show

A
  • closely packed units called Osteons that look like tree rings
48
Q

Does the bone have blood vessels

A
  • Yes unlike cartilage, it’s well supplied by invading blood vessels
49
Q

What is Blood

A
  • fluid w/in blood vessels
  • most atypical CT
  • doesn’t connect things or
    give mechanical support
50
Q

Why is blood classified as connective tissue

A
  • Classified as CT because it develop from mesenchyme and consist of blood cells, surrounded by non
    living Fluid matrix Called
    blood plasma
51
Q

What are the cells of blood

A
  • Vast majority of blood cells are red blood cells or enthrocytes, but scattered wbc’s and platelets
    (needed 4 blood clotting) are
    also seen
52
Q

What are the fibers of blood

A
  • fibers are soluble protein molecules that precipitate, Forming visible fiber like Structures during blood
    clotting
53
Q

What is the function of Blood

A
  • function as transport vehicle for Cardio Vascular System

A&P I (6 decks)

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