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Connective Tissue Flashcards

(81 cards)

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1
Q

What do all connective tissue have in common?

A

Specialized cells, ground substance, and fibers

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2
Q

What is between epithelial and connective tissue?

A

Basement Membrane

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3
Q

Fibroblasts

A

Fixed cell in connective tissue that synthesizes fibers

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4
Q

Fixed macrophages

A

Fixed cells. Irregular shaped. Used to engulf invaders and damaged cells

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5
Q

Adipocytes

A

Fixed cells. They are fat cells primarily used for lipid storage

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6
Q

Mesenchymal cells

A

Fixed Stem cells, used to respond to local injury or infection by dividing to produce new cells. Known for differentiation

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7
Q

Melanocytes

A

Fixed cells that produce melanin. Gives tissue a dark color.

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8
Q

What are the wandering cell names?

A

Free macrophages, mast cells, lymphocytes, microphages

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9
Q

Free macrophages

A

Wandering cells that provide immune response.

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10
Q

Monocytes

A

Free macrophages when in the blood

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11
Q

Mast cells

A

Wandering cells in connective tissues. They are found near blood vessels. Secrete histamine and heparin to stimulate local inflammation

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12
Q

What secretions come out of mast cells?

A

Histamine and heparin

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13
Q

Lymphocytes

A

Wandering cells that migrate through the body and increase where ever tissue damage occurs

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14
Q

What is the form of lymphocytes that produce antibodies?

A

Plasma cells

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15
Q

Microphages

A

Wandering cells that migrate through the body and respond to chemicals released by macrophages and mast cells. They are also phagocytic

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16
Q

What are examples of microphages?

A

Neutrophils and eosinophils

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17
Q

What are the three types of connective tissues?

A

Connective tissue proper, fluid connective tissue, and supporting connective tissue

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18
Q

Collagen fibers

A

Thick thread like composed of collagen and occurring in long parallel bundles. Withstands force along the axis. Don’t stain well. Unbranched

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19
Q

Elastic fibers

A

Thinner fibers that form complex networks. Branched. Stretches. Contain elastin. Stretch, wavy

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20
Q

Reticular fibers

A

Highly branched and have delicate supporting networks. Resist forces applied from many directions. Branched, complex 3D network that support parenchyma of the organs they are in.

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21
Q

Where are reticular fibers found?

A

Spleen and liver where they stabilize cells, blood vessels, and nerves despite the pull of gravity

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22
Q

Parenchyma

A

Distinctive functional cells

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23
Q

What is the first connective tissue to appear in a developing embryo?

A

Mesenchyme

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24
Q

What does Mesenchyme do?

A

Gives rise to all other connective tissue

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25
Mucoid connective tissue
Found in many regions of the embryo it is loose connective
26
What are the categories of connective tissue proper?
Loose connective tissue and dense connective tissue
27
What are the three types of loose connective tissue?
Areolar connective tissue, adipose connective tissue, and reticular connective tissue
28
Loose connective tissue
Supports epithelia, fills spaces between organs, provide cushioning, support blood vessels, nerves, and store lipids. Provide route for the diffusion of materials
29
Areolar connective tissue
Found below the epithelium and made up of mostly fibroblasts with elastic and cartilage fibers. Extensive circulatory supply. Allows for independent movement
30
Where is Areolar connective tissue found?
In the dermis, between muscles. around blood vessels, nerves, joints. Covered by the epithelial lining of the digestive, respiratory, and urinary tracts
31
Adipose tissue
Has modified fibroblasts that store fat and become swollen. Provides padding, cushions shocks, insulates, and stores energy.
32
What are the two types of adipose tissue?
White fat and brown fat
33
White fat
Common under skin, buttocks, sides, and breast. A also bony sockets behind the eyes, surrounds kidneys, and dominates loose connective tissue in the pericardial and abdominal cavities
34
Brown fat
More abundant in infants. Important temp regulator.
35
Reticular connective tissue
Reticular fibers. Provides supporting framework. Contains many cells
36
Where is reticular connective tissue found?
Stroma of the liver, spleen, lymph nodes, and bone marrow
37
Dense regular connective tissue make up
Thickly packed collagenous fibers in a parallel arrangement
38
Where can one find dense connective tissue?
Tendons, ligaments, aponeuroses, covering skeletal muscle
39
What are functions of dense regular connective tissue?
Firm attachment, conducts pull of muscles, reduces friction between muscles, stabilizes positions of bones
40
Dense irregular connective
Tissue that provides strength to areas in which stress is applied to many directions. Forms capsules around organs. Can prevent over expansion
41
Where is dense irregular connective tissue found?
Capsules of visceral organs, periostea, perichondria, nerve and muscle sheaths, dermis
42
Elastic connective tissue
Predominance of elastic fibers with fibroblasts. Stabilizes positions of vertebrae, penis. Provides cushion and shocks. Permits expansion and contraction
43
Where is elastic tissue found?
Walls of aorta, vocal cords, respiratory passages, ligamenta Flava, ligamentum nuchae, underlies transitional epithelium so in bladder
44
Perichondrium
Sets apart cartilage from other tissue.
45
What are the two distinct layers of Perichondrium?
Fibrous layer and cellular layer
46
The fibrous layer of the Perichondrium is made of what kind of tissue?
Dense irregular connective tissue
47
Chondrocytes
Cartilage cells that reside in lacunae
48
What does the fibrous layer of the Perichondrium do?
Provide mechanical support, provide protection, and attaches cartilage to other structures
49
What does the cellular layer in Perichondrium do?
Growth and maintenance
50
Appositional growth
Chondrocytes growth mechanism in which chondroblasts mature and produce the cartilage matrix
51
Interstitial growth
Chondrocytes growth in which it matures within the matrix
52
Three types of cartilage
Hyaline, elastic, and fibrous
53
Hyaline Cartilage
Cartilage with mostly collagen fibers. Weakest. Provides flexible support and reduces friction between bony surfaces
54
Where is hyaline cartilage found?
Tracheal rings, costal cartilages of ribs, bone surfaces at synovial joints.
55
Fibrocartilage
Tough cartilage that resists compression, prevents bone to bone contact and limits relative movement.
56
Where is Fibrocartilage found?
Intervertebral discs, menisci of knee, and symphysis pubis
57
Damage in what cartilage can interfere with movement?
Fibrouscartilage
58
Elastic cartilage
Supported by elastic fibers making it resilient and flexible. Arranged irregular. Stains dark.
59
Where is elastic cartilage found?
Pinna, epiglottis, auditory canal, tip of nose.
60
What fiber makes up 1/3 of the bones matrix?
Collagenous fibers
61
What are the fixed cells of connective tissue?
Fibroblasts, fixed macrophages, adipocytes, mesenchymal cells, melanocytes
62
What are bones sheathed by?
Periosteum
63
What does the periosteum do for bone?
Assists in attaching bones to surrounding tissues, tendons, and ligaments. Cellular layer helps in repair
64
What is something that differentiates bone from cartilage?
Can undergo repairs on a regular basis and can respond to stresses
65
Canaliculi
Form branching networks for exchange of materials between blood vessels and osteocytes
66
Epithelia and connective tissue form what?
Membranes
67
What are the four types of membrane?
Mucous membrane, serous membrane, cutaneous membrane, and synovial membrane
68
Mucous membranes
Communicate with exterior in digestive, respiratory, and reproductive, and urinary tract. It resists the entry of pathogens
69
What is the areolar tissue component of mucous membranes called?
Lamina propia. It connects the epithelium to underlying structures, provides support of blood vessels
70
Serous Membranes
Line Subdivisions of the ventral body cavity.
71
What membrane consists of mesothelium supported by areolar connective tissue?
Serous membrane
72
What are the three serous membranes?
Pleura, peritoneum, and pericardium
73
What is the fluid formed on surfaces of the serous membrane?
Transudate. Must be limited as its main function is to reduce friction
74
Cutaneous membrane
The skin. Thick, waterproof, and dry
75
Where is Synovial membrane found
Found at joints of significant movement.
76
What connective and epithelial tissues make up the synovial membrane?
Areolar and squamous or cuboidal cells
77
How does the synovial membrane differ from epithelial | ?
No basal/reticular lamina, gaps between adjacent cells, the cells are connective tissue cells
78
What does synovial fluid do?
Lubricates the cartilages in the joint, distributes oxygen and nutrients, cushions shocks at the joint
79
Superficial fascia
Hypodermis. Areolar tissue and connective tissue. Located between skin and organs. Allows skin and organs to move independently
80
Deep fascia
After the superficial fascia, made of dense regular connective tissue. Interwoven. Bound to capsules, tendons, ligaments. Ties structural elements together
81
Subserous fascia
Between serous membranes and deep fascia. Made of areolar tissue. Prevents muscle or organ movements from disrupting serous membrane lining

Anatomy (16 decks)

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