Chapter 4: Connective Tissue Flashcards

1
Q

4 Categories Of Connective Tissue

A
  • connective tissue proper
  • cartilage
  • bone (osseous)
  • blood
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2
Q

Connective Tissue Characteristics

A
  1. all are derived from an embryonic tissue called Mesenchyme
  2. contain relatively few cells; mostly contain nonliving things (extracellular matrix)
    - a connective tissue derives its function from its matrix
  3. connective tissue cells make + maintain matrix
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3
Q

Connective Tissue Proper Prefix

A

Fibro____

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4
Q

Cartilage Prefix

A

Chondro___

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5
Q

Bone Prefix

A

Osteo___

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6
Q

Suffix: cell is currently making matrix

A

____Blast

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7
Q

Suffix: cell is not currently making matrix

A

____Cyte

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8
Q

Do Blood Cells make Matrix?

A

No

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9
Q

Hemocytoblast

A

(stem cell)
haven’t formed into a full functioning cell

                      Erythrocyte (red blood cell)
                      / hemocytoblast -- Leukocyte (white blood cells)
                     l
                       Thrombocyte (platelets)- clot blood in case of injury
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10
Q

Components Of Matrix

A

consists of ground substance and fibers

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11
Q

Matrix: Ground Substance (what’s in ground substance)

A
  • interstitial fluid (IF)- a tissue’s water
  • glycoproteins
  • cell adhesion proteins
  • glycosaminoglycans (GAG’s)- provide rigiditymore rigid l bone(completely inflexible)
    l
    l cartilage (rigid but not inflexible)
    GAG’s I
    I adipose (gelatinous)
    l
    less l blood (fluid)
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12
Q

Connective Tissue Fibers: 3 Kinds

A
  • collagen
  • elastic
  • reticular
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13
Q

Collagen Fiber

A

resist pulling + tearing forces

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14
Q

Elastic Fibers

A

can be bent + stretched repeatedly

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15
Q

Reticular Fibers

A

form networks

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16
Q

Connective Tissue Proper: 2 Subcategories

A

Loose Connective Tissue- loose consistency

  • areolar
  • adipose
  • reticular

Dense Connective Tissue

  • dense regular
  • dense irregular
  • elastic tissue
17
Q

Loose Connective Tissue: Areolar

A

-all 3 fiber type
-gelatinous (few GAG’s)
-fibroblasts/cytes (make all 3 fibers)
Functions:
-wraps organs + keeps them in place (bubble wrap of human body)
-absorbs excess fluid away from their tissues

18
Q

Loose Connective Tissue: Areolar Function

A
  • wraps organs + keeps them in place (bubble wrap of human body)
  • absorbs excess fluid away from their tissues
19
Q

Loose Connective Tissue: Adipose

A
  • all 3 fiber types
  • gelatinous (few GAG’s)
  • fibroblasts/cytes (make all 3 fibers)
  • Adipocytes (adipose cells)- store fat
    function:
  • energy storage
  • insulation
  • cushioning
20
Q

Loose Connective Tissue: Adipose Function

A
  • energy storage
  • insulation
  • cushioning
21
Q

Loose Connective Tissue: Reticular Tissue

A

-only reticular fibers, no collagen or elastic fibers
-gelatinous
-reticular cells (Reticulo___)
Functions:
-fluid filtration (found in spleen, which filters blood)

22
Q

Loose Connective Tissue: Reticular Function

A

fluid filtration (found in spleen, which filters blood)

23
Q

Dense Connective Tissue: Dense Regular

A

-consists of large #’s of collagen fibers arranged in parallel
Function:
-strongly resists pulling forces applied in the direction of the fibers
Location: Tendons (attach muscle to bone)

24
Q

Dense Connective Tissue: Dense Regular Function + Location

A

Function:
-strongly resists pulling forces applied in the direction of the fibers
Location:
-Tendons (attach muscle to bone)

25
Dense Connective Tissue: Dense Irregular
``` -consists of large #'s of collagen fibers arranged in multiple directions Functions: -resists tearing in multiple directions Locations: -dermis (deeper layer of skin) ```
26
Dense Connective Tissue: Dense Irregular Function + Location
Function: -resists tearing in multiple directions Location: -dermis (deeper layer of skin)
27
Dense Connective Tissue: Elastic Tissue
``` -contains lots of regularly arranged elastic fibers Function: -can be stretched repeatedly + rapidly Location: -elastic arteries ```
28
Dense Connective Tissue: Elastic Tissue Function + Location
Function: -can be stretched repeatedly + rapidly Location: -elastic arteries
29
Cartilage and 2 Main Properties
-chondroblasts/cytes (in Lacunae) 2 properties: -rigidity- lots of collagen fibers, lots of GAG's -compressible- lots of water (some of the water isn't "trapped" by GAG's)
30
Cartilage: Hyaline
rigid, compressible = function: "shock absorber" for skeleton
31
Cartilage: Elastic
similar to hyaline cartilage, but possesses elastic as well as collagen fibers Function: -rigid but can be bent repeatedly Location: -Pinnae (external part of ear; bend it and it snaps right back)
32
Cartilage: Fibrocartilage
Similar to hyaline cartilage but; - has more collagen fibers - collagen fibers are regularly arranged Essentially a hybrid of hyaline cartilage (shock absorber) + dense regular connective tissue (resists rupture) Location- intervertebral discs