3. Tissues

Question 1

Tissues are

Answer 1

group of cells with similar structures and function

Question 2

4 tissue types

Answer 2

epithelial, connective, muscle and nerve

Question 3

what type of tissue is epithelium

Answer 3

covering (on surface)

Question 4

function of epithelium

Answer 4

cover out body surface and line inner cavities and organs

Question 5

epithelium act as a barrier against

Answer 5

fluid loss, injury, invading pathogens

Question 6

2 names of the number of layers for epithelium

Answer 6

simple and stratified

Question 7

simple epithelium

Answer 7

single layer of cells

Question 8

simple epithelium uses

Answer 8

secretion, diffusion and absorption

Question 9

stratified epithelium

Answer 9

multiple layer of cells

Question 10

stratified epithelium uses

Answer 10

friction

Question 11

3 cell shapes of epithelium

Answer 11

squamous, cuboidal, columnar

Question 12

squamous is

Answer 12

flattened

Question 13

cuboidal

Answer 13

square

Question 14

columnar

Answer 14

rectangular

Question 15

2 specialised epithelium

Answer 15

transitional and glandular

Question 16

transitional

Answer 16

changes shape

Question 17

glandular

Answer 17

secretory

Question 18

simple squamous ex.

Answer 18

alveoli in lungs

Question 19

simple cuboidal ex.

Answer 19

thyroid gland lining

Question 20

simple columnar ex.

Answer 20

gastro-intestinal lining

Question 21

simple columnar ciliated ex.

Answer 21

oviduct

Question 22

stratified squamous (keratinised) ex.

Answer 22

epidermis

Question 23

transitional ex.

Answer 23

bladder

Question 24

simple glandular ex.

Answer 24

mucous membranes e.g. vagina

Question 25

stratified glandular ex.

Answer 25

specific gland

Question 26

connective tissue functions

Answer 26

binds and supports other tissues // maintains body and organ shape

Question 27

connective tissue components

Answer 27

cells (embedded in matrix ground substance and fibers

Question 28

what is the ground substance made of

Answer 28

extracellular matrix

Question 29

3 fibers in ground substance

Answer 29

collagen, elastic, reticular

Question 30

5 types of connective tissue

Answer 30

loose, dense, cartilage, bone and liquid

Question 31

loose connective strength

Answer 31

not strong as loose and only few layers

Question 32

loose ct ex.

Answer 32

areolar and adipose

Question 33

areolar ct is

Answer 33

most common forms subcutaneous layer

Question 34

adipose ct is

Answer 34

specialised stores fat in droplets and is insulating / energy storage

Question 35

dense connective types

Answer 35

regular and irregular

Question 36

dense ct has more what than loose ct

Answer 36

fibres

Question 37

dense regular strength

Answer 37

strong when pulled sideways due to collagen fibres being regularly arranged however weak when pulled up and down as gap in the middle

Question 38

dense irregular strength

Answer 38

strong in all directions - collagen fibres going in all directions

Question 39

dense regular ex.

Answer 39

tendons and ligaments

Question 40

dense irregular

Answer 40

dermis

Question 41

cartilage 3 examples

Answer 41

hyaline, elastic and fibrocartilage

Question 42

cartilage structure

Answer 42

strong and rigid yet flexible - like nose - has a shape, can be manipulated but will return to original shape

Question 43

cartilage components

Answer 43

contains cells embedded in an extracellular matrix of chondrin

Question 44

chondrocytes are

Answer 44

cells responsible for cartilage formation

Question 45

bone cells 2

Answer 45

osteoblasts and osteocytes

Question 46

bone components

Answer 46

extracellular matrix of osteoid crystals of calcium phosphate in osteoid

Question 47

bone is ____ but not _____

Answer 47

hard brittle

Question 48

2 bone types

Answer 48

compact spongy

Question 49

compact bone structure

Answer 49

solid and hard outer layer of bones circle in center surrounded by bigger circles

Question 50

spongy bone structure

Answer 50

internal meshwork found at ends of long bone and core of short, irregular and flat blobs spaced out

Question 51

blood function

Answer 51

circulate through blood vessels to deliver nutrients and oxygen to cells

Question 52

blood components

Answer 52

liquid extracellular matrix -- plasma

Question 53

blood 3 cell types

Answer 53

erythrocytes leucocytes platelets

Question 54

muscle (3rd tissue) function

Answer 54

movement

Question 55

muscles cells can

Answer 55

contract

Question 56

muscles cells contain

Answer 56

microfilaments of two proteins actin and myosin

Question 57

muscle - which is thin and which is thick out of actin and myosin

Answer 57

actin = thin myosin = thick

Question 58

what do actin and myosin do

Answer 58

'walk along' each other

Question 59

3 types of muscle

Answer 59

skeletal smooth cardiac

Question 60

skeletal muscle structure and function

Answer 60

stripy voluntary / conscious control

Question 61

cardiac muscle structure and function

Answer 61

stripy and branch like involuntary control in heart only

Question 62

smooth structure and function

Answer 62

not striated involuntary control

Question 63

nerve (4th tissue) function

Answer 63

transmit nerve impulses from one area to another

Question 64

nerve cell is

Answer 64

neuron