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Connective Tissue Flashcards

(51 cards)

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0
Q

Characteristics of collagen fibers:

A

Primarily of protein collagen
Thick
Extremely tough
Provide tough tensile strength

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1
Q

What is ground substance ?

A

Unstructured, extracellular material between cells and contains fibers
It’s consistency varies from liquid to solid among the different kinds of CT

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2
Q

Characteristics of elastic fibers:

A

Long, thin fibers
Branching networks in extra cellular matrix
Rubber like protein (elastin) allows for stretching and recoiling

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3
Q

Characteristics of reticular fibers:

A

Short, fine, collagenous fibers
Continuous with collagen fibers
Delicate

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4
Q

Where is hyaline cartilage located?

A

Forms most of the embryonic skeleton
Covers ends of long bones in joint cavities
Forms costal cartilages of ribs, nose, trachea, larynx

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5
Q

Where is elastic cartilage located?

A

External ear and epiglottis

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6
Q

Where is fibrocartilage located?

A

Intervertebral discs
Pubic symphysis
Discs of the knee joint

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7
Q

What is an osteocyte?

A

Mature bone cell which reside in lacunae within the matrix

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8
Q

Characteristics of bone connective tissue:

A

Rocklike, hard, calcified
Ability to support and protect body structures
Abundant in collagen fibers

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9
Q

Define blood:

A

Fluid within blood vessels.
Does not connect things or give mechanical support
Classified as connective tissue because it derives from mesenchyme
Surrounded by a non living fluid matrix called blood plasma

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10
Q

Where in the body can you find elastic, dense connective tissue?

A

Walls of large arteries
Certain ligaments associated with vertebral column
Within walls of bronchial tubes

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11
Q

Characteristics of fibrocartilage :

A

Rows of chondrocytes, alternated with rows of thick collagen fibers
Compressive and resists tension well

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12
Q

What is the function of bone (osseous) tissue?

A

Supports and protects by enclosing
Provides levers for muscles to act on
Stores calcium, fat & other minerals
Marrow is site of blood cell formation (“hematopoiesis”)

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13
Q

What is the function of blood, connective tissue?

A

Transport respiratory gases, nutrients, wastes, and other substances

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14
Q

Where is blood, connective tissue located?

A

Contained within the blood vessels

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15
Q

What are the two classifications of connective tissue?

A
  1. ) connective tissue proper

2. ) supporting connective tissues

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16
Q

What is the general function of connective tissue?

A

Binds structures together
Fills in gaps
Serves as framework
Provides support and protection

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17
Q

What is connective tissue proper composed of?

A

Cells
protein fibers
ground substance (which forms a gel around cells and fibers)

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18
Q

What is supporting connective tissue composed of?

A

Bone and cartilage
Strong matrix
Cells are found in lacunae

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19
Q

What are the 3 types of fiber?

A

Collagenous
Elastic (yellow)
Reticular

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20
Q

What does “-blast” mean?

Study These Flashcards
A

Undifferentiated, immature cell

21
Q

What does “-cyte” mean?

22
Q

What is the function of fibroblasts?

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A

They produce fibers of various types

23
Q

What are chondrocytes?

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A

Mature cartilage cells

24
What are the characteristics of elastic fibers?
Sometimes called yellow fibers Branched, elastic protein Allows for stretching and recoiling
25
What are the characteristics of collagenous fibers?
Sometimes called white fibers Made of collagen Thick, non-branched Strong, non-elastic
26
What are characteristics of reticular fibers?
Thin, delicate, Branched collagen | Forms networks
27
What are mast cells?
Produce histamine | Associated with immune system
28
What are hemocytoblasts?
Blood cells
29
What is a chondroblast?
Immature, active cartilage-forming cell
30
What is an osteoblast?
Immature, active bone-forming cell
31
What is an osteocyte?
Mature bone cell
32
What are the 3 types of cartilage?
Hyaline cartilage Elastic cartilage Fibrocartilage
33
Define hyaline cartilage:
Glassy smooth appearance Cells appear in 'nests' of lacunae Serves as precursor to bone
34
Where is hyaline cartilage found in body?
Costal cartilage on lower ribs Covers ends of long bones Forms cartilaginous rings of trachea
35
Define elastic cartilage:
Consists of network of elastic fibers | Provides flexible shape to structures like epiglottis and earlobes
36
Define fibrocartilage:
Consists of large collagen fibers Lacunae are generally found between fibers Forms intervertebral discs of vertebral column
37
Characteristics of bone:
Consists of hard matrix of collagen fibers and calcium salts arranged in rings called lamella Cells in lacunae Lamellae around central canal (Haversian canal)
38
What does blood consist of?
Red blood cells White blood cells Platelets Plasma (matrix)
39
Where are dense regular CT found?
Forms tendons, ligaments, and aponeuroses
40
What is the function of dense regular CT?
Connect muscle to bone | Connect bone to bone
41
What is the function of dense irregular CT?
Protective functions
42
Where can dense irregular CT be found in body?
Form organ capsules | Dermis of skin
43
What are adipocytes?
Fat cells
44
What are the functions of adipose?
Source of stored energy Protection (padding) Insulation
45
What are the 3 types of loose connective tissue?
Areolar Adipose Reticular
46
What are the two types of supporting connective tissue?
Cartilage (hyaline, elastic, fibrocartilage ) | Bone
47
What type of connective tissue is the most atypical CT?
Blood
48
What does all connective tissue derive from?
Mesenchyme
49
Describe reticular loose connective tissue:
Network of reticular fibers | Forms the framework for certain organs which have fluids flowing through them (bone marrow, lymph nodes, spleen)
50
Where can adipose loose connective tissue be found?
Padding around organs and bones | Lower layers of skin

A&P1 (15 decks)

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