tissue part 1

Question 1

covers the external surfaces of the body, lines the internal surfaces of the body and forms exocrine glands.

Answer 1

epithelial tissue

Question 2

serves as support soft body parts and bind structures together

Answer 2

connective tissue

Question 2

forms the muscular wall of tubular organs and the flesh of the body movement

Answer 2

muscle tissue

Question 2

conducts impulses used to help control and coordinate body activities.

Answer 2

nervous tissue

Question 3

components of tissue

Answer 3

cells, intracellular substance, fluid

Question 3

the living components of a tissue and vary in number, shape and arrangement depending on type of tissue

Answer 3

cell

Question 3

the liquid component of a tissue that occurs in between cells where it is known as extracellular fluid and in blood where it is called plasma

Answer 3

fluid

Question 4

the non-living materials produced by cells, such as fibroblast (connective tissue cells), chondroblast (cartilage cells) and osteoblast (bone cells),

Answer 4

intracellular substances

Question 5

organic body material in animals made up of large numbers of cell that are similar in form and function and their related intercellular substances

Answer 5

tissues

Question 6

major component of ct

Answer 6

intercellular substance

Question 7

2 types of intercellular substance

Answer 7

amorphous substance and formed

Question 8

Amorphous substance literally means

Answer 8

without form

Question 9

difficult to observe with routine paraffin technique. It is viscous, gel-like and binds to large quantities of water. It forms the ground substance matrix of tissue and occupies areas not occupied by cells and forms intercellular substance.

Answer 9

amorphous substance

Question 10

amorphous substance is chemically composed of

Answer 10

glycoproteins or proteogycans

Question 11

acts as barrier to bacteria and shock absorber in tissues.

Answer 11

amorphous substance

Question 12

are fibrous in nature and chemically composed of neutral mucosubstances glycoproteins).

Answer 12

formed elements

Question 13

3 types of formed elements

Answer 13

collagen fiber, elastic and reticular

Question 14

the predominant fiber in most proper connective tissues

Answer 14

collagen fibers are

Question 15

likened to a “biological rope” because of its immense strength as it provides high tensile strength and prevent over-distension.

Answer 15

collagen fiber

Question 16

In embryonic connective tissue, they are fine filamentous materials stained glassy pink in H&E.

Answer 16

individual collagen fiber

Question 17

in adult animals, these are like tendon’ individual fibers are widely glassy bands with smooth edges

Answer 17

connective tissue

Question 18

In stretch preparation , the fibers appear as wavy thick bands of indefinite length and random arrangement

Answer 18

of areolar connective tissue

Question 19

Adult collagen fiber is composed of

Answer 19

collagen fibrils

Question 20

composed of overlapping tropocollagen molecule laid together in triplets like a braid of hairs.

Answer 20

collagen fibrils

Question 21

the most common protein in animals

Answer 21

collagen

Question 22

a type of collagen that is banded; most abundant; present in skin, bone and tendon;

Answer 22

type 1

Question 23

type of collagen that is unbanded; present in cartilage

Answer 23

type 2

Question 24

type of collagen thats make up the reticular fibers,

Answer 24

type 3

Question 25

tye of collagen that is unbanded, major component of the basement membrane

Answer 25

type 4

Question 26

strands or sheet and provides springiness and stretchability to the tisse.

Answer 26

elastic fiber

Question 27

this is difficult to observe in H&E sections

Answer 27

elastic fibers

Question 28

In dense regular elastic connective tissue like ligamentum nuchae, elastic fibers are

Answer 28

individual fibers are long, narrow, straight and branched bands with rough edges.

Question 29

In In stretch preparation of loose (areolar) connective tissue, elastic fibers are

Answer 29

thinner than collagen fibers and may have a corkscrew appearance.

Question 30

Each elastic fiber consists of a

Answer 30

protein elastin (amorphous substance) surrounded by microfibrils

Question 31

chemically made up of type III collagen, a very fine collagen fiber. Not visible with routine H & E but stains well with silver and periodic acid schiff (PAS)

Answer 31

Reticular fibers

Question 32

short, black, wiry, branched structures that interconnect with each other to form the characteristic netlike arrangement.

Answer 32

silver stained individual reticular fibers

Question 33

the principal role of reticular fibers is

Answer 33

to form a delixate scaffolding to anchor blood vessels and nerve fibers to the more robust surrounding CT

Question 34

epithelium comes from greek roots _____

Answer 34

epi=upon thele=breast

Question 35

aggregation of cells which are in apposition over a large part of their surfaces, having very little intercellular space and resting on basement membrane and which are specialized for absorptive, secretory, protective, or sensory activities.

Answer 35

epithelial tissue

Question 36

defined as a relatively avascular and almost wholly cellular (i.e., having little or no connective tissue associated with it)

Answer 36

epithelila tissue

Question 37

tissue similar to epithelium but lack basal lamina

Answer 37

epithelioid

Question 38

Epithelial chief components are____ which are generally similar in structure and function.

Answer 38

cells

Question 39

the cellsclosely joined together laterally and/basally by junctional complexes.

Answer 39

epithelium

Question 40

presents a free surface that faces a canal or cavity or lumen and may present special modifications, such as microvilli or cilia that enhance the function of the epithelium.

Answer 40

epithelium

Question 41

increase the surface area for absorption or secretion.

Answer 41

microvilli

Question 42

move secretions and other substances across the epithelium.

Answer 42

cilia

Question 43

Rests on a basement membrane that attaches it to the underlying connective tissues.

Answer 43

epithelium

Question 44

what is a basement membrane

Answer 44

when the epithelial cells lie on the reticular lamina which is bound to another ct called areolar cells

Question 45

since epithelium is avascular, how are cells nourished?

Answer 45

by diffusion of nutrients from capillaries in the underlying connective tissue.

Question 46

exihibit polarity since they have apex and base where different activities take place (

Answer 46

epithelial cells

Question 47

Epithelial tissue embryonic origin mostly comes from

Answer 47

ectoderm, endoderm, and few from mesoderm

Question 48

(lining epithelium of digestive tube, parenchyma of the liver, pancreas and other digestive glands

Answer 48

endoderm

Question 49

(lining epithelium of urinary organ (ureter) and reproductive tracts

Answer 49

mesoderm

Question 50

have high ploriferation and turnover rates. they are short-lived, typically days to weeks and dead or damage cells are regularly replaced by mitosis of younger cells.

Answer 50

epithelial cells

Question 51

functions of epithelia

Answer 51

secretions gas exchange nutrient absorption UV barrier physical barrier pigmentation (for camouflage) excretion stimulis reception

Question 52

secretory sheets of epithelial tissue is found in

Answer 52

reproductive tract, conjuctiva, GI tract

Question 53

examples of epithelial cells that has secretory functions

Answer 53

goblet cells of epithelial sheets(secretes mucinous material)