Connective Tissue & Fascia - Class 1

Question 1

where is CT seen

Answer 1

throughout the body

Question 2

fxns of CT

Answer 2

supports organs and cells

transports nutrients and waste

defends against pathogens

stores fat

repairs damaged tissues

Question 3

4 types of tissues in body

Answer 3

muscle

nerve

epithelium

connective tissue

Question 4

muscle

Answer 4

contractile tissue

Question 5

nerve

Answer 5

electrical activity

Question 6

epithelium

Answer 6

covers internal and external surfaces

Question 7

CT

Answer 7

provides structure and functional support

Question 8

how much of body weight does CT make up

Answer 8

approx 30%

Question 9

fluid of bone + dense connective tissue contain approx…

Answer 9

15% of the total body water

Question 10

4 types of CT

Answer 10

connective tissue proper

cartilage

bone

blood

Question 11

connective tissue is

Answer 11

3 dimensional tissue with

extracellular matrix & cells

cells that manufacture and support CT

Question 12

extracellular matrix

Answer 12

stuff outside of the cells

gelatinous base - ground substance (GAGs, proteoglycans, glycoproteins and water)

Question 13

what is the extracellular matric reinforced by

Answer 13

connective tissue fibers

-collagen, elastin, reticulin

Question 14

what is the extracellular matric made up of

Answer 14

ground substance

CT fibers

Question 15

ground substance is made up of

Answer 15

visco-elastic gel

Question 16

griound substance composition

Answer 16

glycosaminoglycans (GAGs)

H2O

proteoglycans and glycoproteins

Question 17

GAGs

Answer 17

binds water to ground substance

can hold nearly 1000x their weight –> help provide moisture to skin

Question 18

extracellular matric fxn

Answer 18

nutrition to CT

fluid which provides…

barrier against infection

Question 19

fluid which provides… –> extracellular matric fxn

Answer 19

critical fiber distance b/w fibers

mobility of connective tissue

Question 20

CT fibers

Answer 20

collagen

elastin

reticular fibers

Question 21

collagen

Answer 21

4 types

toughest, strongest fiber of CT

tropocollagen

Question 22

4 types of collagen

Answer 22

Type 1 - 4

Question 23

type 1 collagen

Answer 23

loose and dense CT

Question 24

type 2 collagen

Answer 24

hyaline cartilage

flexibility and support

Question 25

type 3 collagen

Answer 25

lining of arteries and organs

Question 26

type 4 collagen

Answer 26

basement membrane mechanical stability cellular adhesion and survival

Question 27

tropocollagen

Answer 27

basic unit of collagen

Question 28

elastin

Answer 28

has the most extensibility less strength than collagen/more than reticulin

Question 29

where is elastin found

Answer 29

skin lungs heart tendons ligaments artery linings ligamentum flavum

Question 30

reticulin

Answer 30

fine fibers with least strength supports internal organs

Question 31

connective tissue cells

Answer 31

fibroblasts fibrocytes macrophages mast cells plasma cells

Question 32

fibroblasts

Answer 32

contributes to formation of CT synthesizes collagen

Question 33

fibrocytes

Answer 33

mature fibroblasts

Question 34

macrophages

Answer 34

assist in healing

Question 35

mast cells

Answer 35

part of immune system release histamine

Question 36

plasma cells

Answer 36

antibody for infection

Question 37

connective tissue proper

Answer 37

named according to fiber concentration/arrangement

Question 38

types of connective tissue proper

Answer 38

dense regular dense irregular loose irregluar

Question 39

dense regular is also called

Answer 39

fibrous CT

Question 40

dense regular CT

Answer 40

high concentration of fibers arranged in a regular pattern

Question 41

dense regular CT has

Answer 41

high concentration of collagen high tensile strength in one direction

Question 42

where is dense regular CT found

Answer 42

tendons and ligs blood vessel walls

Question 43

what does regular CT do

Answer 43

supports, protects and holds bones, mm and other tissues and organs in place

Question 44

dense irregular CT

Answer 44

high conc of fibers/arranged in haphazard fashion

Question 45

dense irregular CT has

Answer 45

high conc of collagen with standard forces in various directions

Question 46

where is dense irregular CT found

Answer 46

dermal layer of skin and aponeuroses

Question 47

loose irregular connective tissue

Answer 47

low conc of fibers arranged in haphazard fashion

Question 48

loose irregular CT has

Answer 48

less tensile strength contains finer elastin fibers and thicker collagen fibers

Question 49

loose irregular CT resists

Answer 49

forces in various directions

Question 50

ex of loose irregular connective tissue

Answer 50

a lymph gland and hypodermis

Question 51

where is loose irregular tissue found

Answer 51

directly beneath the epidermis/papillary layer of the dermis

Question 52

fxn of CT (2)

Answer 52

diffusion of nutrients barrier against trauma and infection allows body to move "critical fiber distance"

Question 53

allows body to move

Answer 53

H2O allows tissue to slide on each other

Question 54

"critical fiber distance"

Answer 54

fluid creates distance b/w fibers so they dont create adhesions within the CT

Question 55

visco-elastic

Answer 55

viscous and elastic

Question 56

viscous

Answer 56

gel like so can be stretched

Question 57

elastic

Answer 57

tends to return to previous length

Question 58

stretching of connective tissue

Answer 58

as tension increases, collagen fibers arrange in the direction of the tension

Question 59

fascia

Answer 59

CT envelope that supports the body and gives it shape

Question 60

what is fascia

Answer 60

thin casing of CT

Question 61

where is fascia located

Answer 61

under the skin and in deeper locations throughout the body

Question 62

what does fascia do

Answer 62

holds everything in place

Question 63

what does fascia contain

Answer 63

nerves make it almost as sensitive as the skin

Question 64

what happens when fascia undergoes mechanican stress

Answer 64

"tighten up"