Epithelial tissue Flashcards
(101 cards)
1
Q
Line the surface/ body cavity
A
Epithelial tissue
2
Q
Serves as gland
A
Epithelial tissue
3
Q
Elongated cells with extremely fine process
A
Nervous tissue
4
Q
Aggregated polyhedral cells
A
Epithelial tissue
5
Q
Elongated contractile cells
A
Muscle tissue
6
Q
Several types of fixed and wandering cells
A
Connective tissue
7
Q
Has very small amount of ECM
A
Nervous
8
Q
Small amount of ECM
A
Epithelial
9
Q
Moderate ammount of ECM
A
Muscle
10
Q
Abundant ECM
A
Conective tissue
11
Q
Transmission of nerve impulses
A
Nervous tissue
12
Q
Lining of surface or body cavity and for glandular secretion
A
Epithelial tissue
13
Q
Strong contraction and body movement
A
Muscle tissue
14
Q
Support and protection of tissues and organs
A
Connective tissue
15
Q
Most organs can be divided into
A
Stroma and Parenchyma
16
Q
Group of cell or tissue responsible for organs specialized functions
A
Parenchyma
17
Q
Example of parenchyma
A
lungs, parenchyma is alveoli
18
Q
cells that has supporting role in the organ; hold the organ
A
Stroma
19
Q
Principal functions of epithelial tissue
A
- Covering, lining and protecting surfaces (epidermis)
- Absorption (intestinal lining)
- Secretion ( Parenchymal cells of gland)
20
Q
Specific cells of certain epithelia may be
A
contractile (Myo epithelial cells) or Specialized sensory cells (taste buds or olfactory epithelium)
21
Q
Oblong/ rectangular shape
A
columnar epithelium
22
Q
circle/square shape
A
Cuboidal Epithelium
23
Q
flat
A
Squamous Epithelium
24
Q
lines the intestine and stomach
A
Columnar epithelium
25
Epidermis type of epithelial tissue
Squamous epithelium
26
Shape and layer of epithelial tissues are dicatated by
their functions
27
one layer of epithelial tissue
simple
28
Multiple layers of epithelial tissue
Stratified
29
False stratified
Pseudo stratified
30
Most epithelia rest on
Connective tissue
31
Contains microvasculature that brings oxygen and nutrients to both tissues
Connective tissue
32
The connective tissue that underlies the epithelia lining the organs of digestive, respiratory and urinary system
Lamina propria
33
The area of contact between epithelium between epithelium and CT may be increased by irregularities at the interface in the form of small evaginations called
Papillae
34
Papillae occurs only in
epithelial tissues subject to frictions like covering of the skin or tongue.
35
Through____ the oxygen and nutrients from CT goes to ET.`
Diffussion
36
It divides CT and ET
Basement Membrane
37
boundary between CT and ET
Basement Membrane
38
Structure that Epithelial tissue sits on
Basement Membrane
39
groove
Basement Membrane
40
All epithelial cells in contact with subjacent CT have at their basal surface a specialized, feltlike sheet of ECM reffered to
Basement Membrane
41
Found in the part of CT
Papillae
42
What type of tissue can be found in pappillae
CT
43
What type of tissue can be found in pulmonary, digestive and urinary system
Lamina Propria
44
Region of cell contacting CT
Basal pole
45
The opposite of basal pole, usually facing the space
Apical pole
46
Regions of cuboidal and columnar cells that joins the neighboring cells
Lateral pole
47
Semi-permeable filter for substances reaching Epithelial cells from below
Basement Membrane
48
Completely aposed
ET
49
spaces between cells
ECM
50
Basement membrane has 2 layers
Basal lamina and reticular lamina
51
what part of basement membrane is specifically located below epithelium
Basal lamina
52
the layer of basement membrane produced by epithelium
Basal lamina
53
the layer of basement membrane produced by CT
Reticular Lamina
54
Directly lies above basal lamina and basement membrane
Basal cells
55
Basal lamina includes
Laminin
Type IV collagen
Nindogen
56
Large glycoprotein that self assemble as a LACELIKE NETWORK immedietly below the cells basal pole where they are held in place by transmembrane integrins
Laminin
57
Monomers of __ contains 3 polpeptide chain and self assemble further to form feltlike layer.
Type IV collagen
58
Laminin
| Type IV collagen are held together by the
adhesive glycoprotein entactin/ nindogen and by perlecan a proteoglycan
59
Adhesions
Tight/occluding junctions/Zonulae occludens
Adherent/anchoring junctions/Desmosomes
Gap junctions/Communicating junctions/ Nexuses
60
Forms seal between adjacent cells
Tight/occluding junctions/Zonulae occludens
61
Sites of string cells adhesions
Adherent/anchoring junctions/Desmosomes
62
Channels for communications between adjacent cells
Gap junctions/Communicating junctions/ Nexuses
63
lower part
stick to basal lamina
on the basal pole
Hemidesmosomes/ anchoring junctions
64
Fingerlike cytoplasmic projection in the apical surface of most epithelial cells.
Microvilli
65
Microvilli has passive movement due to
conraction of terminal web
66
No. and shape of microvilli of given cell type correlate with
cells absorptive capacity
67
the internal structure of microvilli contains
core of actin fillaments that are crosslinked by several actin building protein.
68
purpose of microvilli
increase surface area and absorptive capacity
69
characteristics of microvilli seen in HNE
brush border
70
Usually long immotile microvilli
Stereocillia
71
why stereocillia has passive movement
to facilitate movement of intestinal content
72
stereocillia can only be seen in
```
inner ear (indolymph)/ endolymph
epididymis (male genitals)
```
73
Long highy motile apical structure larger than microvilli and contains internal arrays of microtubules
Cillia
74
common surface modification present nearly on every cell of the body
Cillia
75
like extension of apical plasma membrane
Cillia
76
where can cillia be seen
```
upper and lower respiratory tract
Respiratory epithelium (pseudostratified epithelium)
```
77
if the epithelium has white spot is has
goblet cells and it means that it is a respiratory tract
78
secretes mucus
goblet cells
79
what moves the trapped germs with the mucus toward the tpo
Cillia
80
Cilia contains axonyme
9 microtubules outside- for active movemet
| 2 central microtubule- singlets
81
2 Types of epithelia
Covering/lining epithelia
| Secretory/glandular epithelia
82
mesothelium
lining of heart, lungs and abdomen
83
endothelium
lining of blood vessels
84
transitional cells
eurothelial cells
85
Secretory epithelia and glands
Goblets
exocrine
endocrine
86
with duct
exocrine
87
ductless
products secretes through blood difussion
hormones
endocrine
88
exocrine
merocrine secretion
apocrine secretion
holocrine secretion
89
- secretory product is delivered in membrane bound vesicles
- most exocrine are __
- via exocytosis
- salivary gland
merocrine
90
- Secretory product acumulate in apical part in maturing cells and the it will undergo apoptosis
- ex. sebaceous gland
Holocrine
91
- Also secretes in apical portion
- sorrounded by thin layer of cytoplasm which envelope plasma membrane
- found in lactating mammary gland
- large lipid droplet in milk
apocrine gland
92
serous
watery
93
mucus
mucoid
94
serous cells produce
glycosylated/nonglycosylated protein
95
extensive glycosylation of the constituent protein with anionic oligosaccharide
mucus
96
push the secretory product
| contractile epithelial cells
myoepithelial cells
97
conjunctive
columnar
98
Bladder, ureter, renal calyces.
transitional
99
Sweat glands, developing ovarian follicles
cuboidal
100
mouth, esophagus, larynx, vagina, anal canal
squamous nonkeratinize
101
skin/epidermis
squamous keratinize
