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ENTO
CIRCULATION, DIGESTION, REPRODUCTION, NERVOUS SYSTEM, SYNAPTIC TRANSMISSION, SENSES
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Undergraduate 2
12/13/2006

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Term
CIRCULATION> what is insect blood called?
Definition
Hemolymph

Blood does not occur in vessels "bathes the internal organs"

OPEN circulatory system

NO function in GAS EXCHANGE!
Term
CIRCULATION> whare are blood cells called?
Definition
HEMOCYTES
Term
A)Phagocytosis?
B)Encapsulation
C)Coagulation
Definition
A) Tracks down invading bateria: cells eating cells
B) Smothers and kill, defends insect
C) When hurt, rebuilds exoskeleton

NUTRIENT, HORMONE, WASTE TRANSFER

LUBRICATION:BATHES ORGANS
Term
circulation> DORSAL VESSEL?
A) AORTA?
B) OSTIA?
Definition
open circulatory system

THIS is a leaky open-ended pipe, contractile organ

A)front part of dorsal vessel
B)within the HEART are holes called this...
Term
what is the FAT BODY? FUNCTIONS? STORES what?
Definition
METABOLLY ACTIVE TISSUE.

-functions as a LIVER; it is NOT FAT!

-storage of glycogen,fat, protein

-metabolize sugar, protein, lipids, blood protein synthesis

-store metabolic wastes

*bioluminescence.
Term
DIGESTION
Definition
Food needs to be INGESTED, DIGESTED, ABSORBED, EXCRETED
Term
what are the primary structures of the alimentary canal?
Definition
Hindgut: responsible for excretion
Midgut: resp. for absorption
Foregut: resp. for ingestion
Term
FOREGUT?
Definition
PROCESSING + INGESTION

-Mouth
-pharynx acts like a pump
-esophagus: tube that connects pharynx to crop
- crop: storage structures, food can move in and stored
-proventiculus:filter system
Term
MIDGUT
Definition
Digestion + Absorption ( part of ths does NOT have an exoskelt.)

-enzyme secretion
-symbionts
-gastric caeca: site of absorption; absorbs into hemolymph.
Term
HINGUT

*what are malpighian tubules used for?*
Definition
Water balance + Excretion

-malpighian tubules
-colon
-rectum
-anus
a)malpighian tubules
b)maintenance of a constant internal enviroment
c)elimination of metabolic wastes
d)regulation of salts and water


*used to conserve H2O
Term
EXCRETION
A)AMMONIA
B)UREA
C)URIC ACID
Definition
NITROGEN EXCRETION

- main excretory products are nitrogenous waste from protien metabolism

A)very toxic, very soluble in water, aquativ animals, requires lots of water

B)less toxic, water soluble, requires water to eliminate ex. vertebrates

C)low toxicity,insoluble in water, elliminated as a solid and requires NO WATER...ex. most insects, birds, reptiles.
Term
REPRODUCTION
Definition
Most insect species are BISEXUAL (males and females are present)
Term
PARTHENOGENETICS
A)advantages?
B)disadvantages?
Definition
FEMALES ONLY!

A)great reproductive rate potential, no risk of in mating
B)little mixing of genetic material, reduces ability to adapt to a changing environment.
Term
MALE REPRODUCTIVE STRUCTURES?
Definition
TESTIS - produces sperm

seminal duct

accessory glands very importan; produces materials

AEDEGUS

SPERMATOPHORES
Term
FEMALE REPRODUCTIVE STRUCTURES?
Definition
Ovaries
Spermathica
Accessory glands: silk, egg stalks; ootheca (eggpods), venom
vagina
Term
the EGG, consists of ?
Definition
CHORIAN

YOLK(bitollogenin) :provide food source

Nucleus

Micropyle(hole)
Term
OVIPOSITION
Definition
EGGLAYING...

*main difference: WHERE the embryo get its nourishment.*
Term
OVIPOSITION> oviparous
Definition
lay normal egg surrounded by chorian
Term
OVIPOSITION> viviparous
Definition
egg has insufficient yold to develop embroy, juveniles are retained within the female, nourished by teh female,and emerge live
Term
OVIPOSITION> ovoviparous
Definition
egg has sufficeint yold, all nourishment is from the egg, egg retained by female emerge live.
Term
NERVOUS SYSTEM> sensory neuron? consists of what?
Definition
Basic nerve cell (transfer info from stem cell to other part)

*FUNCTION OF NERVE CELL-carries information transfer from dentrical zone to terminal arborization

consists of SOMA, AXON, DENDRITES, TERMINAL ARBORIZATIONS
Term
NERVOUS SYSTEM> synaptic cleft?
Definition
arborization to dendrite, GAP that is inbetween.
Term
SYNAPTIC TRANSMISSION
A)ACETYLCHOLINE [ACH]
b)ACETYLCHOLINE ESTERASE [ACHase]
Definition
A) CHEMICAL MESSENGER
B) RECYCLES ACH; HELPS STOP NERVE IMPULSE FROM CONTINUING TO GO....ex: insecticides
Term
CENTRAL NERVOUS SYSTEM [ladder system]
Definition
-blobs of nerves: ganglion ( 3 ganglion in the head when these 3 are merged together, it is called the BRAIN!
Term
CENTRAL NERVOUS SYSTEM> the BRAIN
A) PROTOCEREBRUM
B) DEUTOCEREBRUM
C) TRITOCEREBRUM
Definition
3-lobed
a) eye (in charge of vision)
b) antennae
c) mouthparts

*visceral nervous system
Term
SENSES> vision, consists of?
Definition
Compound eye (very sensitive)
- high flicker-fusion rate (detect movement mover quickly)
- color vision into the UV
- ocelli: photodetector ( light or day)
- stemmata: usually on larvae
Term
SENSES> chemoreception
Definition
TASTE: HIGH concentration in fluid, mouthparts, tarsi, foregut

ODOR: LOW concetration in gas, antennae; "taste" sexual signals, trial markings, alarm pheromones (serves as warning)
Term
SENSES> mechanoreception
Definition
ABILITY TO DETECT:Touch, vibration, pressure, sound.

Simple hairs, plates, membranes (hair can be on BOTH inside + outside)

Johnston's organ (ex. mosquitoes)

Chorodotoral organ (serve as ears)
Term
SENSES> A)temperature receptors B)magnetic receptors C)baroreceptors D)humidity receptors
Definition
A) lots of insects can detect heat ex. some can detect infrared w/antennae

B)Termites ex...

C)cand etect atmospheric pressure
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