Parasitology Lab exam 2

Taenia sp

Taenia scolex

cysticercus

Echinococcus granulosus

hydatid sand

hydatid cyst

hymenolepis diminuta

cysticercoid

egg packets

dipylidium caninum

moniezia expansa

Neoechinorhynchus sp

male

Neoechinorhynchus sp

female

pomphorhynchus sp

male

Trichuris egg

L3 is in egg

Trichuris female

Trichuris male

Trichinella spiralis

nurse cells containing L1

what are cestoes usually divided into

scolex, zone of proliferation, and the strobila (proglottids make up)

scolex

used to hang on to the host with

typically grapping the gut wall

proglottids split up into

immature- reproductive organs have not fully developed

mature- sexually mature but contain few eggs

gravid- jamed of eggs

cestodes are usually

hermaphratitic

cestodes nutrient intake

tegument

cestodes have a ____ life cycle, and larval stage of____

complex life cycle

oncosphere

BLADDER LARVAE

uterus

holds fertalized eggs

testes

produce sperm

ovary

produce eggs

vitellaria

Produce yolk glands that supply nutrients for developing eggs

vagina

recives sperm for fertalization

cirrus sac

pouch carrying the sperm

sperm duct

brings sperms to the genital pore

genital pore

An opening on the outside of the proglottid where reproductive structures connect to the exterior, allowing sperm transfer during mating.

out of the bladder larvae which attaches more tight around bladder

lose to tight—-

cysticercus

hydaited cyst

cysticercoid (tight)

cement gland

acantho— male

produce cement used for compettition

huge one in neoe, but many in pomp

cement reservior

acantho— male

store cement here

saefftigen pouch

acantho— male

evert and retract copula bursa

copulatory bursa

acantho— male

grasp onto female worm for fertilization

throny proboscis

acantho— both

used to attach to host

acantho on how they take in nutrients

tegument

lemnisci

acantho— both

helps proboscis evert and retract

ovarian balls

acantho- female

produce eggs, have no ovary

these are larger then eggs and are more pink

uterine bell

acantho- female

no color, sorts eggs then put them out into enviornment

uterus in acantho

acantho— female

skinny tube at posterior end

vagina in acantho

acantho— female

2 bulb like structures

how do nematodes get nutrients

have straight through digestive system

stichosome

in trichuris, long and skinny on anterior side

these contain stichocytes

break down food from feeding

spicule

in nematode males

they are twisted at the end and stick in spicule to female so sperm crawl into and fertalize

testes in nematodes

only have one

vulva

nem— female

egg relased to enviornment

trichuris sp egg

it is terminal operculated, oval shape, has L3 insdie

nematodes are

dioecious, females being larger