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EPHE 141 > Day 4 Epithelial and connective tissue > Flashcards

Day 4 Epithelial and connective tissue Flashcards

1
Q

functions of connective tissues? (6)

A

establish framework for the human body

transport fluids and dissolved materials around the body

provide protection for delicate organs

supporting, surrounding and interconnecting tissue types

storing energy, especially in the form of lipids; storage of minirals (Ca)

defending the body against invasion from microorganisims

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2
Q

connective tissue:

cells are suspended in extracellular matrix are made of what?

A

fibers (proteins) and ground substance

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3
Q

different CTs are determined by relative amounts of what?

A

specialized cells
fiber types in matrix
make up of the ground substance in the matrix

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4
Q

CT characteristics

what are Fibroblasts?

A

mainly in connective tissue proper

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5
Q

CT characteristics

what are chondroblasts?

A

found in cartilage

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6
Q

CT characteristics

what are osteoblasts?

A

found in bone

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7
Q

Ground substance secrete what?

A

intercellular solution

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8
Q

proteins that interact to form large extracellular connective tissue fibres:

(3)

A

elastin
collagen
reticulin

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9
Q

where would you find elastin?

A

where we need to have flexibility

its elasticity, pliability and memory

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10
Q

where would you find collagen?

A

think strong. you find it when you need a lot of strength in connective tissue

strength and size

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11
Q

characteristics of reticulin?

A

strength, small and light

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12
Q

ground substance and connective tissue fibers together form what?

A

the extracellular matrix

consistency determined by proteins and type of ground substance

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13
Q

Loose connective tissue

what are the three?

what are the general function?

A

areolar

adipose

reticular

Function:
packing material
provide cushioning and support
store lipids
route for diffusion of materials
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14
Q

in loose connective tissue what is an example of a fixed cell?

A

fibroblasts- produce fibers for intercellular matrix and ground substance

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15
Q

in loose connective tissue what is an example of wandering (migrating cells)

A

macro/microphages, mast cells, lymphocytes

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16
Q

what are some examples of fixed cells?

A 
melanocyte
fixed macrophage
adipose
fibroblast 
mesenchymal cell
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17
Q

Loose CT fixed cells

what is the function of fibroblasts?

A

makes fibers and the ground substance for intercellular substance

18
Q

Loose CT fixed cells

what is the function for fixed macrophages?

A

phagocytize pathogens and damaged cells

19
Q

Loose CT fixed cells

what is the function for adipocytes?

A

store lipids

20
Q

Loose CT fixed cells

what is the function for mesenchymal cells?

A

CT stem cells that can differentiate into other cell types

21
Q

Loose CT fixed cells

what is the function for melanocytes

A

provide melanin for pigmentation in skin

22
Q

What are the 4 examples of loose CT wandering cells?

A

free macrophages

mast cells

lymphocytes

microphages

23
Q

loose CT wandering cells:

what is the function of free macrophages?

A

mobile traveling phagocytic cells

24
Q

loose CT wandering cells:

what is the function of mast cells?

A

stimulate local inflammatory response

25
Q

loose CT wandering cells:

what is the function of microphages

A

small phagocytic cells that assist during infection and tissue damage

26
Q

Areolar connective tissue - loose

where is it found?

A 
dermis (papillary layer
hypodermis
digestive
respiratory
between muscles
around blood vessels 
nerves and joints
27
Q

Areolar connective tissue - loose

what is its framework and what are its functions?

A

open framework- contains all cells and fibers found in CT proper

cushions organs
provides support but permits independent movement
phagocytic cells provide defense

28
Q

Adipose tissue -Loose CT

where is it found?

A

beneath skin- at abdomen, buttocks, breasts; around kidneys and other organs

29
Q

Adipose tissue -Loose CT

functions?

A

protection, absorbs shock insulation reduce heat loss and stores energy

30
Q

reticular tissue- loose CT

where is it found?

A 
liver 
kidney
spleen
lymph nodes
bone marrow
31
Q

reticular tissue- loose CT

function?

A

provide support

framework- light but strong

32
Q

Dense connective tissue

what are the 3 examples?

A

dense regular CT
dense regular (elastic connective tissue)
dense irregular CT

33
Q

Dense connective tissue functions?

A

firm attachments
transmits forces
reduces friction between muscles
stabilizes relative position of bones

34
Q

Dense regular connective tissue

what does it contain?

A

collagen and elastin, orderly arrangement

35
Q

Dense irregular CT

characteristics?

A

contains collage and elastin interwoven

36
Q

Dense Elastic CT regular

contains what?

A

collagen and elastin

37
Q

which type of Dense CT would most likely be found in ligaments and tendons?

A

dense regular

38
Q

Dense irregular connective tissue

what are its locations?

A

capsules of joints and visceral organs

dermis of skin (reticular layer)

periostea and perichondria

Nerve and muscle sheaths

39
Q

Dense irregular CT

Functions?

A

strength to resist forces applied from many directions

helps prevent over expansion of organs

40
Q

Dense Regulat CT

found in what?

A

tendons and aponeruosis (bone-muscle); Ligaments (bone-bone or stabilizing organs)

41
Q

Dense regular connective tissue

functions?

A

firm attachments
transmits force (conducts pull of muscle)
stabilizes relative position of bones
reduces friction between muscles

42
Q

PNEUMONIC FOR CT FUNCTIONS!!!!!!

Don’t forget to inspect every cat

A

Don’t (D) Forget (F) To (T) Inspect (I) Every (E) Cat (C)

D - defending the body against invasion from microorganisims

F- framework- establish framework for the human body

T - transport - transport fluids and dissolved materials around the body

I - interconnect supporting, surrounding and tissue types

E - energy storage, especially in the form of lipids; storage of minirals (Ca)

C- cushion for delicate organs

EPHE 141 (42 decks)

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