T1: Tissues

Question 1

4 primary tissues

Answer 1

nervous, connective, muscle, epithelia

Question 2

Function of: nervous tissue

Answer 2

transmission

Question 3

Function of: connective tissue

Answer 3

support + bind

Question 4

Function of: muscle tissue

Answer 4

contraction/ movement

Question 5

Function of: epithelial tissue

Answer 5

covering

Question 6

3 types of muscle tissue

Answer 6

cardiac skeletal smooth

Question 7

main points of difference (generalised) of muscle types

Answer 7

striations, cell shape, cell length, nuclei position, nuclei #, intercolated discs

Question 8

difference in striations b/w muscle tissues

Answer 8

C + S= striations (smooth arranged in diff pattern)

Question 9

difference in nuclei # and position b/w muscle tissues

Answer 9

Skeletal= peripheral + multiple

Question 10

difference in cell shape and length b/w muscle tissues

Answer 10

Skeletal= long + cylindrical 
cardiac= short + branching 
smooth= short and fusiform

Question 11

difference in interpolated disc b/w muscle tissues

Answer 11

cardiac= present

Question 12

Identifying muscle in cross section

Answer 12

1. nuclei position

2. ratio cytoplasm (larger in cardiac than smooth)

Question 13

explain points of polarity in epithelia

Answer 13

apical= exposed to luman
basal= basement membrane

Question 14

are epithelium avascular or vascular

Answer 14

avascular

Question 15

how to identify simple columnar

Answer 15

all nuclei uniform

Question 16

identifying transitional

Answer 16

top layer round cells + bigger than bottom

Question 17

function of simple cuboidal and columnar

Answer 17

absorption/secretion

Question 18

function of simple squamous

Answer 18

rapid diffusion

Question 19

fcuntion of start squamous

Answer 19

resist abrasion

Question 20

function of transitional

Answer 20

distensible

Question 21

function of cilia v microvili

Answer 21

c= movement 
mv= SA

Question 22

Components of connective tissue

Answer 22

cells, fibres, ground substance

Question 23

2 main types of CT

Answer 23

Fibrous + specialised

Question 24

two subgroups of fribous CT

Answer 24

loose + dense

Question 25

3 types of fibres in CT

Answer 25

collagen (high strength- wavy) elastic (stretch + recoil) reticular - very fine

Question 26

predominant fibre in Loose and dense CT

Answer 26

collagen

Question 27

predominant fibre in adipose, blood, hyaline

Answer 27

not seen

Question 28

what is the only CT thats does have fibres running in same direction and why

Answer 28

Dense Reg. = resists forces in consistency direction (ligaments)

Question 29

functions + locations of hyaline cartilage, areolar (loose CT), dense irreg

Answer 29

hyaline= rigid structure for support (trachea) areolar= binding (under epithelia) dense irreg= resist tension in diff directions (dermis)

Question 30

6 main layers of organ tissue

Answer 30

1. lumen 2. mucosa (epithelium + lamina propria-LCT) 3. muscular mucosa (variably present) 4. submucosa (LCT) 5. Muscular externa (usually smooth, or skeletal if voluntary) 6. Serosa (simple scam on LCT) /adventitia (LCT)

Question 31

3 tunica layers

Answer 31

intima media externa