classifying connective tissue

Question 1

loose tissue

Answer 1

many cells
randomly arranged
mostly ground tissue

Question 2

function of loose tissue

Answer 2

binds structures

Question 3

examples of loose tissue

Answer 3

lamina propa
pulp

Question 4

describe lamina propria

Answer 4

loose connective tissue
immediately underlying certain epithelia
very thin Cl layer
ground substance + loosely arranged
fibres
allows blood vessels to serve epithelia tissues above
+ve = good for diffusion
-ve = good breeding ground for microbes
usually has immune cells

Question 5

what is an advantage of lamina propria

Answer 5

good for diffusion
=nutrients + waste products

Question 6

what is a disadvantage of lamina propria

Answer 6

good breeding ground for microbes
= due to the extra space

Question 7

describe dense irregular connective tissue

Answer 7

fewer cells
less ground substance
more ECM fibres - randomly arranged
function - strong, withstand pressure from different directions
eg. dermis - skin

Question 8

what is the function of dense irregular connective tissue

Answer 8

strong
withstand pressure from different directions

Question 9

give an example of dense irregular connective tissue

Answer 9

dermis - skin

Question 10

describe loose connective tissue - areolar

Answer 10

many cells
mostly ground substance
fibres loosely + randomly arranged
function: bind structures, diffusion
eg. lamina propria, pulp

Question 11

describe dense regular connective tissue

Answer 11

fewer cells
less ground substance
dense ECM fibres - organised in parallel
function: tensile, strength, resist forces in 1 direction
eg. tension, ligaments

Question 12

what is the function of dense regular connective tissue

Answer 12

tensile
strength
resist forces in 1 direction

Question 13

describe fibrillin

Answer 13

marfan’s syndrome
affects tissues rich in elastic fibres - aorta, risk of aortic aneurysms
skeletal defeat - long digits + arms

Question 14

type I collagen

Answer 14

osteogenesis imperfecta
brittle bones/malformation

Question 15

type II collagen

Answer 15

chondrodysplasia
cartilage defects
joint abnormalities

Question 16

type I, II, V collagen

Answer 16

ehlers danlose syndrome
fragile, extra elastic skin
hypermobility of joints

Question 17

describe brown adipose tissue

Answer 17

multiocular
many smaller lipid droplets
look empty in sections - lipid washed away
most common in newborn
in adult found around kidney/adrenals
rich in capillaries + mitochondria
specialised in thermogenesis

Question 18

who is brown adipose tissue most common in

Answer 18

newborns

Question 19

where is brown adipose tissue found in adults

Answer 19

around the kidney / adrenals

Question 20

what is brown adipose tissue rich in

Answer 20

capillaries
mitochondria

Question 21

what is brown adipose tissue specialised in

Answer 21

thermogenesis

Question 22

why might sections look empty in brown adipose tissue

Answer 22

lipid has washed away

Question 23

describe white adipose tissue

Answer 23

unilocular - eye look
single larger lipid droplet
look empty on sections - lipid washed away
can can stain with red O/ Sudan Red
most common in adult
brown/white
white = stores energy /metabolic or structural roles
structural = fill spaces, act as padding - thermal insulator or shock absorbing
stored and mobilises triglycerides

Question 24

what you stain white adipose tissue with

Answer 24

oil red O
Sudan Red

Question 25

who is white adipose tissue most common in

Answer 25

adults

Question 26

what is the function of white adipose tissue

Answer 26

structural = fill spaces, act as padding - thermal insulator or shock absorbing
stored and mobilises triglycerides