Connective Tissue

Question 1

fibroblasts

Answer 1

connective tissue cells that produce fibers

Question 2

loose connective tissue

Answer 2

low fiber to cell ration

ex: lamina propria

Question 3

dense connective tissue

Answer 3

high fiber to cell ratio

ex: tendons and ligaments

Question 4

regular vs. irregular dense connective tissue

Answer 4

regular = all fibers are arranged in one direction
*areas where you don’t want tearing

irregular = when tissue has to be strong in all directions
*heart

Question 5

mesenchyme

Answer 5

loose CT in embryo - acts like stem cells and can give rise to many tissues

Question 6

mucosa

Answer 6

epithelium and lamina propria of intestinal tract lumenal side

Question 7

submucosa

Answer 7

dense irregular connective tissue

with fibroblasts and fibers

Question 8

serosa

Answer 8

mesothelium and underlying connective tissue

Question 9

trichrome stain

Answer 9

stains collagenous material

Question 10

endomysium

Answer 10

loose CT surrounding muscle fibers

Question 11

fascicle

Answer 11

bundle of muscle fibers

Question 12

perimysium

Answer 12

dense irreg. CT surrounding muscle fascicles

Question 13

epimysium

Answer 13

dense irreg. CT surrounding muscles

Question 14

endoneurium

Answer 14

Loose CT surrounding axons

Question 15

perineurium

Answer 15

surrounds fascicles of axons

Question 16

epineurium

Answer 16

surrounds bundles of axon fascicles

Question 17

mast cells contain which compounds?

Answer 17

heparin and histamine

Question 18

reticular connective tissue is made up of what type of collagen?

Answer 18

type III

silver stain WHY**

Question 19

what stains for laminin?

Answer 19

brown stain

Question 20

white adipose tissue

Answer 20

large single droplet of lipid (unilocular)

we are born with a certain number, as we get fatter or thinner our cells take on more or less lipid

Question 21

brown adipose tissue

Answer 21

accumulates in liquid droplets (multilocular)

changes in abundance during lifetime

infants have more than adults

generates heat - has large amounts of mitochondria

myf5+

UCP-1

Question 22

beige (brite) fat

Answer 22

also has UCP-1 and is thermogenic like brown fat, but is present in adult body and can be recruited when a person is cold

Question 23

ground substance

Answer 23

amorphous material in CT containing water, glycoprotein, and proteoglycans

Question 24

mesenteries

Answer 24

sheets of connective tissue that connect the viscera to the body wall

Question 25

stroma

Answer 25

supporting tissue of an organ

Question 26

parenchyma

Answer 26

tissues of an organ responsible for the primary function of that organ

Question 27

UCP-1

Answer 27

disrupts the proton gradient

causes protons to leak from intermembrane space - disrupts oxidative phosphorylation

so instead of making ATP it generates heat