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LEC CPROT > Integumentary system > Flashcards

Integumentary system Flashcards

1
Q

outer covering of the living tissues of insects;
composed of EPIDERMIS bounded by a BASEMENT MEMBRANE and on the outside by the CUTICLE

A

integument or body wall

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2
Q

produced by the epidermis;
restricts water loss;
lines the AIR TUBES, SALIVARY GLANDS, AND ALIMENTARY TRACT

A

cuticle

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3
Q

thin outer layer (3 to 0.1mu);
permeable to chemicals and nutrients but impermeable to enzymes;
deeply folded but later straighten after ecdysis

A

epicuticle

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4
Q

insects swallow air

A

ecdysis

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5
Q

layers of epicuticle

A

homogenous layer;
cuticulin layers (critical in the growth process);
wax;
cement

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6
Q

innermost layer fo the epicuticle

A

homogenous layer

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7
Q

long hydrocarbon chain

A

wax

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8
Q

tanned protein with lipids serving as a varnish like covering

A

cement

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9
Q

thicker layer;
forms the exuvium;
gives the cuticle strength and resilience;
formed of chitin (C18 H13 NO5)

A

exocuticle

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10
Q

is a nitrogenous polysaccharide linked to a protein

A

chitin

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11
Q

composed of mucopolysaccharide secreted by hemocytes;
run the nerves and tracheoles

A

basement membrane

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12
Q

multicellular with undifferentiated epidermal cells

A

spines

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13
Q

multicellular with specialized cells

A

setae / macrotrichia / trichoid sensilla

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14
Q

unicellular in origin

A

acanthae

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15
Q

subcellular

A

microtrichia

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16
Q

sense much of the insects tactile environment

A

setae

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17
Q

large setae

A

bristles / chaetae

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18
Q

cell for hair formation

A

trichogen cell

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19
Q

cell for socket formation

A

tormogen cell

20
Q

functions of the integumentary system

A

provide rigid foundation for the body;
serves as point of attachment of muscles;
protect internal organs;
prevents dessication

21
Q

molted skin

A

exuviae

22
Q

triggered by hormones released when an growth reaches physical limits of the exoskeleton;
casting of the old cuticle

A

molting

23
Q

separation of cuticle form the epidermis;
physical separation of epidermis form old endocuticle

A

apolysis

24
Q

actual process of shedding off of the old skin

A

ecdysis

25
Q

fills the resulting gap with an inactive molting fluid

A

epidermal cells

26
Q

insulates and protects the EC from molting fluid’s digestive action

A

cuticulin layer

27
Q

exo and endo cuticle

A

PROCUTICLE

28
Q

line the pore canals for the water retention and water loss mechanism

A

wax

29
Q

allow movement of lipids and protein toward the new epicuticle

A

pore canals

30
Q

where wax and cement layer form

A

epicuticle

31
Q

lines of weakness in the old epidermis

A

ecdysial sutures

32
Q

shedding of old skin

A

ecdysis

33
Q

processes by which the new cuticle are made more resistant to degradation, more stiffer, and less soluble

A

sclerotization / tanning

34
Q

tanning substances for the cuticle from tyrosine in the hemolymph

A

quinones

35
Q

controls sclerotization

A

bursicon

36
Q

hardening without the development of a new color

A

b - sclerotization

37
Q

hardening with colors

A

quinone sclerotization

38
Q

insect actively constructs new exoskeleton

A

pharate condition

39
Q

a condition on where the insect is newly molted, and is soft and unpigmented

A

teneral condition

40
Q

triggers the epidermal cells to change in number and size

A

ecdysone

41
Q

necessary for cuticle tanning and endocuticle formation

A

bursicon

42
Q

induce sclerotization in ligated abdomen of blowfly larvae

A

ecdepteroids

43
Q

produce as a result of tanning in the outer part of the procuticle to form the exocuticle

A

rigid cuticle

44
Q

the chitinous cuticle as it is 1st secreted is known as _________

A

procuticle

45
Q

inner undifferentiated part of the cuticle

A

endocuticle

46
Q

the sclerites are joined by _____________

A

flexible arthroidal membranes

47
Q

colorless, rubberlike protein

A

resilin

LEC CPROT (11 decks)

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