Platyhelminthes Lab

Cestoda:

Taenia pissiformis:

scolex-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 

4 regions-

4X:

 

 

 

 

 

 

 

 

 

 

 

 

10X:

 

 

 

 

40X:

 

 

 

 

gravid proglottid-

4X:

 

 

 

 

10X:

 

 

 

 

Mature proglottid-

4X:

 

 

 

 

10X:

 Dipylidium caninum-

Composite whole mount-

4X:

 

 

 

 

 

 

 

 

10X:

 

 

 

 

 

 

 

 

40X:

 

100X:

 

 

 

 

Echinococcus granulosis adult-

4X:

 

 

 

 

10X:

 

 

 

 

 

 

 

 

40X:

 Trematoda:

Fasciola hepatica-

whole mount-

Dissecting Microscope:

 

 

 

 

 

 

 

 

 

 

 

 

Miracidia-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 

 

 

 

Redia-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 

 

Cercariae-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 

 

 

 

 

 

 

 

 

 

 

 

Metacercariae-

4X:

 

 

 

 

10X:

 

 

 

 

Schistosoma mansoni-

Female Whole Mount-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 

 

 

 

Male Whole Mount-

4X:

 

 

 

 

10X:

 

 

 

 

 

 

 

 

40X:

 

In copula-

4X:

 

 

 

 

10X:

 

 

 

 

40X:

 Turbellaria:

Planaria-

Cross section:

Anterior Cut-

4X:

 

 

 

 

 

 

10X:

 

 

 

 

 

 

40X:

 

 

 

 

 

 

Pharyngeal Cut-

4X:

 

 

 

 

 

 

10X:

 

 

 

 

 

 

40X:

 

 

 

 

 

 

Posterior Cut-

4X:

 

 

 

 

 

 

10X:

 

 

 

 

 

 

40X:

 

 

 

 

 

 

Live Planarians-

Dissecting Microscope:

 

 

 

 

Glossary:

Scolex: The anterior end of a tape worm (Platyhelminthes), with hooks and mouth.

Proglottid: The sections of the body which make up the tape worm.

Neck: The body section which separates the scolex from the strobilla.

Strobilla: The summation of all proglottids of the tape worm.

Oviduct: A duct connecting the ovary to the ootype, which is a sac for fertilized eggs.

Gonopore: A pore which sperm or eggs are released from. At the end of the oviduct.

Cysticercus: A larval form of a tape worm where the scolex is inside a sac-like structure.

Oncosphere: A tape worm embryo.

Oral Sucker: An organ on the anterior end of the tape worm that is used to attach to the host.

Ventral Sucker: An organ used for attachment on the ventral side of the tapeworm posterior to the oral sucker. Also known as an acetabulum.

Pharynx: A muscular tube located on the anterior side of the organism connected to the mouth through which nutrients are brought into the body.

Yolk Glands: Also known as vitelline glands, produce egg shell components and the yolk that feeds the eggs.

Miricidium: The first larval stage of trematode platyhelminthes, generally free-swimming.

Sporocyst: A larval stage of a trematode flat worm that develops in a molluscan intermediate host. It resembles a sac which then releases redia.

Rediae: The next larval stage of trematode flat worms. Has a mouth and a gut. This stage develops into a smaller iteration of the adult form.

Ceracaria: The next stage of trematode development, this makes its way out of its molluscan intermediate host. In the water column it finds its primary host.

Metacercaria: The last larval stage of trematode flat worms that encysts itself into the primary or final host.