epithelial

Question 1

Aggregated
polyhedral
cells

Answer 1

epithelial

Question 2

Several types
of fixed and
wandering
cells

Answer 2

conncetive

Question 3

elongated
contractile
cells

Answer 3

muscle

Question 4

Elongated
cells with
extremely fine
processes

Answer 4

nervous

Question 5

Lining of
surface or
body cavities;
glandular
secretion

Answer 5

epithelial

Question 6

Support and
protection of
tissues/organs

Answer 6

CT

Question 7

Strong
contraction;
body
movements

Answer 7

MUSCLW

Question 8

Transmission
of nerve
impulses

Answer 8

NERVOUS

Question 9

2 CLASSIFICATION OF EPI

Answer 9

SURFACE AND GLANDULAR

Question 10

The connective tissue that underlies the epithelia
lining the organs of the digestive, respiratory, and
urinary systems

Answer 10

LAMINA PROPRIA

Question 11

• small evaginations that increase
  the are between the two tissues
  (protrusions)

Answer 11

Papillae

Question 12

The region of the cell contacting the ECM and
connective tissue

Answer 12

BASAL POLE

Question 13

o Faces the connective tissue
o Near Lamina Propria

Answer 13

BASAL POLE

Question 14

o opposite end, usually facing a space
o Above
o Not connected tip
o Opposite of Basal Pole

Answer 14

APICAL POLE

Question 15

CELLS AT THE SIDE

Answer 15

LATERAL SURFACE

Question 16

The basal surface of all epithelia rests on a thin
extracellular, felt-like sheet of macromolecules

Answer 16

BASEMENT MEMBRANE

Question 17

SEMIPERMEABLE FILTER FOR SUBSTANCE REACHING EPITHELIAL CELLS FROM BELOW

Answer 17

BASEMENT MEMBRANE

Question 18

COLOR OF BASEMENT MEMBRANE

Answer 18

PINK

Question 19

2 PARTS OF BASEMENT MEMBRANE

Answer 19

BASAL AND RETICULAR LAMINA

Question 20

PARTS OF BASAL LAMINA

Answer 20

TYPE IV COLLAGEN.,LAMININ, NIDOGEN&PERLACAN

Question 21

V. INTERCELLULAR ADHESION & JUNCTIONS

Answer 21

TIGHT, ADHERENT, GAP JUNCTTIONS AND DESMOSOMES

Question 22

o Also called occluding junction or Zonula occludence

Answer 22

TIGHT JUNCTIONS

Question 23

form a seal between adjacent cells.
o tight
o seal to prevent leak or flow

Answer 23

TGHT JUNCTIONS

Question 24

o Zonula Adhesions

Answer 24

ADHERENT JUNCTIONS

Question 25

o sites of strong cell adhesion. ..

Answer 25

adherent juncttions

Question 26

o channels for communication between adjacent cells o Chemical Synapses

Answer 26

gap junctions`

Question 27

specialized adhesive protein complexes that localize to intercellular junctions and are responsible for maintaining the mechanical integrity of tissues.

Answer 27

desmosomes

Question 28

o “”- cells to basal lamina

Answer 28

Hemidesmosome

Question 29

B. TRANSMEMBRANE PROTEIN OF JUNCTIONS

Answer 29

* Claudin & Occludin * Cadherin * Connexons ClaOcCaCo

Question 30

The seal between the two cell membranes is due to tight interactions between the transmembrane proteins o Tight Junctions

Answer 30

* Claudin & Occludin

Question 31

transmembrane glycoproteins of each cell that bind each other in the presence of Ca

Answer 31

cadherin

Question 32

o Gap Junctions

Answer 32

Connexons

Question 33

o brush or striated border projecting into the lumen o increase the cells’ surface area

Answer 33

microvilli

Question 34

Each actin filament is connected by protein fibrin and villin

Answer 34

microvilli

Question 35

Each actin filament of microvilli is connected by

Answer 35

protein fibrin and villin

Question 36

a much less common type of apical process, best seen on the absorptive epithelial cells lining the male reproductive system o increase the cells’ surface area, facilitating absorption

Answer 36

stereocillia

Question 37

o Seen in Vas deferens and epididymis

Answer 37

stereocillia

Question 38

long, highly motile apical structures, larger than microvilli, and containing internal arrays of microtubules not microfilaments

Answer 38

cillia

Question 39

➢ - assembly of microtubules

Answer 39

Axoneme

Question 40

Epithelia can be divided into two main groups:

Answer 40

covering (or lining) epithelia and secretory (glandular) epithelia

Question 41

The very thin surface cells of stratified squamous epithelia can be “keratinized” (packed with keratin filaments)

Answer 41

* Stratified Squamous Keratinized Epithelium

Question 42

found mainly in the epidermis of skin, where it helps prevent dehydration from the tissue

Answer 42

* Stratified Squamous Keratinized Epithelium

Question 43

lines moist internal cavities (eg, mouth, esophagus, and vagina) where water loss is not a problem.

Answer 43

* Stratified Squamous Non-Keratinized Epithelium

Question 44

Rare in the body o occurs in the excretory ducts of salivary and sweat glands

Answer 44

* Stratified Cuboidal

Question 45

seen in the conjunctiva lining the eyelids, where it is both protective and mucus secreting

Answer 45

* Stratified Columnar

Question 46

lines much of the urinary tract, extending from the kidneys to the proximal part of the urethra, o characterized by a superficial layer of large, dome like cells sometimes called umbrella cells

Answer 46

* Transitional Epithelium /urothelium

Question 47

tall, irregular cells all are attached to the basement membrane but their nuclei are at different levels and not all cells extend to the free surface, giving a stratified appearance.

Answer 47

pseudostratified epithelium

Question 48

Contains goblet cells and cilia

Answer 48

* Pseudostratified epithelium

Question 49

Epithelial cells that function mainly to produce and secrete various macromolecules

Answer 49

glands

Question 50

may synthesize, store, and release proteins (eg, in the pancreas), lipids (eg, adrenal, sebaceous glands), or complexes

Answer 50

secretory cells

Question 51

o Composed of cells that secretes substances/products

Answer 51

glandular epi

Question 52

2 types of glandular epi

Answer 52

exocrine and endocrine

Question 53

remain connected with the surface epithelium, the connection forming the tubular ducts lined with epithelium that deliver the secreted material where it is used

Answer 53

exocrine g

Question 54

o lose the connection to their original epithelium and therefore lack ducts.

Answer 54

endocrine glands

Question 55

Secretory portions can be ???? (either short or long and coiled) or ??? (rounded and saclike); either type of secretory unit may be branched, even if the duct is not branched

Answer 55

Secretory portions can be tubular (either short or long and coiled) or acinar (rounded and saclike); either type of secretory unit may be branched, even if the duct is not branched

Question 56

the most common method of protein or glycoprotein secretion and involves typical exocytosis from membrane-bound vesicles or secretory granules.

Answer 56

MEROCRINE SECRETION

Question 57

EXOCRINE SECRETION TYPES

Answer 57

MEROCRINE SECRETION, HOLOCRINE SECRETION, APOCRINE SECRETION HOMEPO

Question 58

cell disruption that releases the product and cell debris into the gland’s lumen. This is best seen in the sebaceous glands producing lipid rich material in skin

Answer 58

HOLOCRINE SECRETION

Question 59

product accumulates at the cells’ apical ends, portions of which are then extruded to release the product together with small amounts of cytoplasm and cell membrane. Lipid droplets are

Answer 59

APOCRINE SECRETION

Question 60

ENDOCRINE SIGNAL TYPES

Answer 60

PARACRINE AND AUTOCRINE

Question 61

ENDOCRINE SIGNALS ARE RENEWED CVUA

Answer 61

MITOSIS

Question 62

provides a matrix that supports and physically connects other tissues and cells together to form the organs of the body

Answer 62

CT