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9 Cards in this Set

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What is PTTH?
Prothoracicotropic (brain hormone).
lateral neurosecretory cells or protocerebrum.
Stimulates prothoracic gland to release molting hormone=ECDYSONE
protothoracictropic
How does PTTH work?
PTTH= C.C (corpus cardiacum)
C.C.->Hemolymph->P.G.(prothoracic gland)=ECDYSOME
P-C-B-P
J.H is found where?
Corpus allum
brain
1)Large amounts of J.H. and ecdysome produce what?
2)Small amounts of J.H. and ecdysome produce...
3)No amount of J.H. and ecdysome produce
1)Larvae or nymph
2)Pupa
3)Adult
Growth
What is the target cells for ecdysome and J.H.?
Epidermal Cells
skin
How did Carol Williams study circulation?
Tied off insects to study CNS development and hemolymph flow.
Tourniquet
What are phytoedysteroids?
Hormones that keep insects away from trees (found in some ferns and gymnosperms)
Botany?
What does Vitellogenisis mean?
Yolk making
eggs?
What does xenohormones mean?
A hormone used to "time" offspring of parasite to host. Example fleas reproductive schedule coincide with the host rabbit
estrogen