Reproductive system Flashcards
composition of males testes
sperm
composition of females ovaries
eggs (ova)
different modes of reproduction in insects
sexual;
asexual;
sexual and asexual
sac like tubes where sperms are produced
follicles
a group of germ cell at the distal end of each follicle
spermatogonia
susunod sa spermatogonia;
under go meiosis (4 spermatids - mature spematozoa)
spermatocytes
where mature sperm form the testes pass out
vasa efferentia
where mature sperm collects
seminal vesicle
form a single ejaculatory duct
vasa defferentia
where sperm passes out of the body
ejaculatory duct
male copulatory organ
aedeagus
Pairs of secretory glands that are connected to the system thru short ducts;
In PERIPLANETA forms dense brunches of tubules called the “mushroom gland of Huxley”;
Manufacture seminal fluid and spermatophores
Accessory glands
sustains and nourishes the mature sperm
seminal fluid
proteinaceous pouch-like structure that encase the sperm
spermatophores
Swells with developing eggs;
Where eggs are actually produced
Pair of ovaries / ovaries
Germ cells near end of each ovariole;
Increase in size to form oocytes
Oogonia
susunod sa oogonia;
produced within each ovariole during active oogenesis;
under go meiosis (1 egg and 3 polar bodies)
oocytes
base of ovariole
calyx
common oviduct opening into a genital chamber
Bursa copulatrix
supply lubricants in the female reproductive organ;
connected by small ducts to common oviduct;
secretes chorion
female accessory glands
protein rich egg shell that surrounds the egg
chorion
male deposits spermatophore in bursa copulatrix
copulation
movement that forces spermatophore in the spermatheca
peristaltic contraction
pouch like for storage of sperm
spermatheca
SPERMATHECAL GLANDS produce
Enzyme, to digest protein coat of spermatophore;
Nutrients to sustain sperm in storage
special opening in the egg shell where sperm swim thru
micropyle
also known as egg laying
oviposition
the growth and transformation of the insects
insect development
the development and growth of embryo inside the egg
embryonic development
development and growth after the egg has hatched
post-embryonic development
change in form and size
metamorphosis
development from unfertilized egg
parthenogenesis
female may only produce females
thelytokous
female produce only male
arrhenotokous
female produce both sexes
amphitokous / deuterotokous
insect species that undergo all types of parthenogenesis
thysanoptera;
aphids and wasps
reproduction in an immature stage
paedogenesis
production of young by larva
larval paedogenesis
embryos are formed in the haemocoele
pupal paedogenesis
non terminal instar develops reproductive features of an adult
neoteny
insect specie where female development ceases at puparium stage
strepsiptera
possess both testes and ovaries
hermaphroditism
part testis, part ovary
ovotestis
insect that has ovotestis
cottony cushion scale (Icerya purchasi)
production of more than one embryo
polyembryony
eggs laid shortly after fertilization;
no retention
oviparity
egg retained until embryogenesis is complete;
embryos is fed with egg reserves;
deposited as nymph or larva
ovoviviparity (aphids)
eggs retained;
embryo fed by mother;
immatures may complete development be fore deposition
viviparity (strepsiptera, tsetse fly)
