PLATYHELMINTHES (PART 2)

Pseudophyllidea (Uterine pore)

______________: Dorsal or Ventral location

Pseudophyllidea (Neck)

________________: Present or Absent

Pseudophyllidea (Ova)

_______________: Operculated (embryonated)

Pseudophyllidea (Larval stages)

________________:

1st: Coracidium

2nd: Procercoid

3rd: Plerocercoid

Plerocercoid

____________: Infective stage of Pseudophyllidea in Humans

Pseudophyllidea (Intermediate Host)

_______________: 2

Pseudophyllidea (Example)

_______________: D. Latum

Cuticle

Body covered (tegument) by ______________

Circulatory System

Cestodes lacks digestive system and has no _____________

TRUE

Cestodes are hermaphroditic

Intestinal tract

Habitat of Adult Tapeworms: _______________

Tissue

Habitat of Larvae Tapeworms: ______________

20 years

Average life span of Cestodes: ______________

Hymenolepis nana- Man act as IH/DH

_______________: May or may not require intermediate host

1. Echinococcus granulosus

2. Echinococcus multilocularis

_______________: May infect man in their larval stages

1. Hymenolepis nana

2. Taenia solium

3. Diphyllidium caninum

4. Echinococcus granulosus

________________: With Hooklets

1. Taenia saginata

2. Hymenolepis diminuta

_______________: Without Hooklets

Diphyllobothrium latum

________________: Scolex spatulate with bothria and requires 3 hosts (2 IH, 1DH)

1. Scolex

2. Neck

3. Proglottids or segments

Body of Cestodes consists of 3 distinct regions

Strobila

____________: Chain of proglottids

Immature

Proglottids or segments:

A. ____________- No well developed organs

B. Mature - With well developed organ

C. Gravid/ Ripe- Filled with eggs

Mature

Proglottids or segments:

A. Immature - No well developed organs

B. _________ - With well developed organ

C. Gravid/ Ripe- Filled with eggs

Gravid/ Ripe

Proglottids or segments:

A. Immature - No well developed organs

B. Mature - With well developed organ

C. __________ - Filled with eggs

Neck

___________: Budding zone

Scolex

____________: It is the organ for attachment. May have rostellum, hooklets, and suckers.

Gravid proglottids

____________: Note uterus and ova

Hymenolepis nana

All cestodes usually require intermediate host except ______________.

TRUE

Hymenolepis nana definitive host can serve also as intermediate host

Cysticercus cellulosae

Larval stage of Taenia solium: ______________

Cysticercus bovis

Larval stage of Taenia saginata: ______________