EPITHELIAL TISSUE [ANAT-MED]
1.3 CHARACTERISTICS OF EPITHELIAL TISSUE: - High Cellularity
- Avascular
- Exhibit functional and morphologic polarity
2.Where is the BASAL SURFACE attached to?: Underlying basement
membrane
3.Why is the epithelial tissue HIGH CELLULARITY?: Made up of closely
packed cells
4.What is meant by AVASCULAR?: No blood vessels in between cells.
5.Why does the epithelial tissue exhibit functional and morphologic polarity?
: Because it has basal, lateral, and free surface or apical
6.DOMAIN of an epithelial cell can be determined by?: It's cytoplasmic
or- ganelles and surface modifications
7.A thin sheet of AMORPHOUS EXTRACELLULAR MATERIAL made up of
glycoproteins, collagen, and proteoglycans where basal surfaces of
epithelial cells rest.: BASAL LAMINA
8.BASAL LAMINA provides support to the overlying epithelium:
STRUC- TURAL SUPPORT
9.BASAL LAMINA is made up of?: Glycoproteins, collagen, and
1/
17
, proteoglycans
10.BASAL LAMINA also serves as?: An impermeable barrier that
allows only water and small molecules to pass through
11.Basal lamina is a product of?: Epithelial cells
12.3 LAYERS of BASAL LAMINA: Lamina rara
externa Lamina densa
Lamina rara interna
13.It is the layer of the basal lamina which has a middle electron-dense
layer that is made up of collagen IV and proteoglycans: LAMINA DENSA
14.Lamina densa is particularly made up of?: COLLAGEN TYPE
IV Proteoglycans
15.It is the layer of the basal lamina which has an electron-lucent layer.:
LAM- INA RARA EXTERNA
16.Lamina rara externa is made up of?: Laminin and proteoglycans
17.It is the layer of the basal lamina which isn't always present but has
an electron-lucent layer.: LAMINA RARA INTERNA
18.Lamina rara interna is made up of?: Collagen type VII
fibronectin Thrombospondin
Proteoglycans
2/
17
, 19.Differences of the LAYERS OF THE BASAL LAMINA: Go memorize
20.Differentiate LAMINA FIBRORETICULARIS to the BASAL LAMINA:
Go memorize
21.Layer of extracellular maintaining COLLAGEN, RETICULAR FIBERS,
AND FIBRONECTIN sandwiched between basal lamina and underlying
tissue.
Also, thicker than the basal lamina: LAMINA FIBRORETICULARIS
22.The product of lamina fibroreticularis: FIBROBLASTS
23.Basal lamina and lamina fibroreticulars are referred as?: BASEMENT
MEM- BRANE
24.2 GROUPS OF EPITHELIAL TISSUES: Surface
epithelium Glandular epithelium
25.The group of epithelial tissue that is specialized to synthesize and
release secretions: Glandular epithelium
26.The group of epithelial tissue that covers the external surfaces:
Surface epithelium
27.Difference of surface epithelium to glandular epithelium: Memorize
28.2 Classifications of epithelium: Simple
3/
17
1.3 CHARACTERISTICS OF EPITHELIAL TISSUE: - High Cellularity
- Avascular
- Exhibit functional and morphologic polarity
2.Where is the BASAL SURFACE attached to?: Underlying basement
membrane
3.Why is the epithelial tissue HIGH CELLULARITY?: Made up of closely
packed cells
4.What is meant by AVASCULAR?: No blood vessels in between cells.
5.Why does the epithelial tissue exhibit functional and morphologic polarity?
: Because it has basal, lateral, and free surface or apical
6.DOMAIN of an epithelial cell can be determined by?: It's cytoplasmic
or- ganelles and surface modifications
7.A thin sheet of AMORPHOUS EXTRACELLULAR MATERIAL made up of
glycoproteins, collagen, and proteoglycans where basal surfaces of
epithelial cells rest.: BASAL LAMINA
8.BASAL LAMINA provides support to the overlying epithelium:
STRUC- TURAL SUPPORT
9.BASAL LAMINA is made up of?: Glycoproteins, collagen, and
1/
17
, proteoglycans
10.BASAL LAMINA also serves as?: An impermeable barrier that
allows only water and small molecules to pass through
11.Basal lamina is a product of?: Epithelial cells
12.3 LAYERS of BASAL LAMINA: Lamina rara
externa Lamina densa
Lamina rara interna
13.It is the layer of the basal lamina which has a middle electron-dense
layer that is made up of collagen IV and proteoglycans: LAMINA DENSA
14.Lamina densa is particularly made up of?: COLLAGEN TYPE
IV Proteoglycans
15.It is the layer of the basal lamina which has an electron-lucent layer.:
LAM- INA RARA EXTERNA
16.Lamina rara externa is made up of?: Laminin and proteoglycans
17.It is the layer of the basal lamina which isn't always present but has
an electron-lucent layer.: LAMINA RARA INTERNA
18.Lamina rara interna is made up of?: Collagen type VII
fibronectin Thrombospondin
Proteoglycans
2/
17
, 19.Differences of the LAYERS OF THE BASAL LAMINA: Go memorize
20.Differentiate LAMINA FIBRORETICULARIS to the BASAL LAMINA:
Go memorize
21.Layer of extracellular maintaining COLLAGEN, RETICULAR FIBERS,
AND FIBRONECTIN sandwiched between basal lamina and underlying
tissue.
Also, thicker than the basal lamina: LAMINA FIBRORETICULARIS
22.The product of lamina fibroreticularis: FIBROBLASTS
23.Basal lamina and lamina fibroreticulars are referred as?: BASEMENT
MEM- BRANE
24.2 GROUPS OF EPITHELIAL TISSUES: Surface
epithelium Glandular epithelium
25.The group of epithelial tissue that is specialized to synthesize and
release secretions: Glandular epithelium
26.The group of epithelial tissue that covers the external surfaces:
Surface epithelium
27.Difference of surface epithelium to glandular epithelium: Memorize
28.2 Classifications of epithelium: Simple
3/
17
