connective tissue Flashcards

1
Q

what is the most abundant tissue in the body that is found in many forms and various consistencies

A

connective tissue

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2
Q

what are the functions of connective tissue(4)

A

support and strengthens other tissues
protects and insulates internal organs
separates structures (eg. m. in groups of m.)
main source of immune response

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3
Q

what is the area of energy reserve storage for connective tissue

A

adipose tissue

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4
Q

t/f connective tissue is highly vascular without any exceptions

A

false except for cartilage which is avascular

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5
Q

what is blood used for in connective tissues

A

transport sys

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6
Q

is connective tissue similar to epi tissue concerning its organization

A

no it contains large amounts of extracellular material in which are found single cells or groups of cells

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7
Q

what consists extracellular matrix

A

protein fibers and ground substance

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8
Q

what determines a tissue’s quality

A

the structure of the extracellular matrix

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9
Q

amount of ground substance found btw the cells and fibers in connective tissue can be

A

fluid (loose), semifluid(loose), gelatinous(loose)
and calcified (dense)

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10
Q

what is the function of ground substance (4)

A

support cells, binds them together, stores water, provides a medium of exchange btw blood and cells

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11
Q

what are the 2 most common cells associated w connective tissue

A

fibroblasts and macrophages (phagocytes)

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12
Q

what are fibroblasts (look, form what, and found where)

A

-large, flat cells w branching processes
-form the fiber for strength and structure (mature cells=fibrocytes)
-found in all general connective tissue, most numerous

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13
Q

what are macrophages (function)

A

move thru matrix and engulf waste products or dead cells, can be fixed or wandering

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14
Q

what does blast mean

A

younger, builder and immature cell

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15
Q

do the macrophages and fibroblast have to work in sync

A

yes

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16
Q

what are the 3 types of fiber (fibrillar extracellular matrix found in the ground substance btw the cells) in connective tissue

A

collagenous (white)
elastic (yellow)
reticular (neutral)

17
Q

what is collagenous fiber in connective tissue (whats it made from, form found has, strong?, function)

A

made from protein collagen
usually found in // bundles
strong like steel cable (resists to tensile forces like stretching or pulling), non-elastic but not stiff
supportive function

18
Q

what is the most abundant protein in the body

19
Q

what is elastic fiber in connective tissue (form found in, made from what, strong?, can be stretched?)

A

long cylindrical ribbon structure
made from protein elastin
strong but has an elastic quality (rubberband)
can be stretched 150% but returns to og length

20
Q

what is elastic fiber abundantly found in

A

skin, arterial walls, lung tissue and also found in bones

21
Q

what is reticular fiber in connective tissue (referred as?, arranged how?, function, what does it bind to)

A

referred to as immature collagen
arranged in fine bundles (cobweb)
provide support in the walls of blood vessels
help form the basement mem
binds to smooth m. in organs

22
Q

what forms the framework of organs or glands to which epi cells attach and that is non-elastic, like collagen

A

reticular fiber

23
Q

what are the 3 loose connective tissues

A

areolar ct
adipose tissue
reticular ct

24
Q

what is areolar ct (where and the function)

A

ct layer that connects skin to underlying tissues, surrounds blood vessels, n. and organs
provides strength, elasticity and support

25
what is adipose tissue (where, funtion, subtypes)
found where fat is stored protective and insulation functions (reduces heat loss) essential and non-essential fats
26
what is reticular ct
supporting framework of liver, spleen, lymph nodes, red bone marrow, blood vessels and m.
27
whats the main difference btw loose ct and dense ct
same elements but dense ct has much more collagen
28
what are the 3 classifications of dense ct
dense regular ct dense irregular ct elastic ct
29
what type of dense ct is laid down in a regular fashion,, xtracellular matrix looks shiny and white, is strong tissue and forms tendons, aponeuroses and ligs
dense regular ct
30
why are ligaments and tendons slower to heal ythan m.
because they have fewer blood ve3ssels
31
what type of dense ct provides a strong attachment btw structures
dense regular ct
32
what type of dense ct is collagenous fibers and fibroblasts interwoved and irregularly arranged
dens irregular ct
33
what type of dense ct is often foudn in sheats and forms the m. fascia, found in periosteum and perichondrium
dens irregular ct
34
what type of dense ct in found in joint capsules, in the dermis of skin and is leather like
dense irregular ct
35
what type of dense ct consists of elastic fibers and fibroblasts and appears yellowish in color
dense elastic ct
36
what type of dense ct is found in lung tissue, wall of elastic a. , trachea, vocal cords, some ligamenrts, bronchioles (allows stretching of various o0rgans)
dense elastic ct