Platyhelminths are also Flatworms or Hermaphrodites except for

Dorsoventrally flattened w/ bilateral symmetry segmented w/ a short ribbon like appearance

2 divisions of Platyhelminthe

Cestodes has scolex (2 opposing sucking organ) and completes life cycles in aquatic

Cestodes w/ vitellaria (condensed into a mass adjacent to the ovary and 4 scolex

Schistosomes (blood flukes) or tissue flukes

Ribbon like and segmented covered by tegument w/ microtriches

Highly specialized microvilli covering the entire surface of the tegument of cestode. These are hairlike filaments distributes although out the surface of the body

Parts of Cestodes

Part of Cestodes which are globular or pyriform,and organ of attachment

Part of the cestode which progressively matures and segmented units w/ complete formed sexual organ and c'mon genital pores

Found behind the scolex of cestode which is unsegmented and region of growth

The muscular organ of male reproductive cestode that serves as the male copulatory organ

Condition which an organism begins life as a male and then changes into a female

Number of segment of cestode

What is missing in cestode

Most cestodes are

Segments having the anterior proglottid overlapping the next exterior one

Segments that do not overlap

Segment of premature detachment of proglottids or release of terminal gravid proglottids

Segment in which the gravid proglottids are not shed in the strobila and the eggs are release in another way

Where do cestodes absorbed food

An integument of an organisms which covers cestodes

Chain of progressively developing proglottids

Organ of attachment which has 2 elongated grooves

Cup like organ of attachment

Organ of attachment which has chitinous hook

Refers to cestode w/ many intermediate hosts

Refers to cestode which has only 1 intermediate hosts

For nourishment of egg

Egg formation in cestodes

Joined to spermatic duct in cestodes

Minute ducts leading to testes in cestodes

Genus of Cestodes whose only have cirrus

Excretory system of cestodes

Habitat of cestodes

Metabolism of cestode

Metabolic disorder caused by cestodes

Reproduction of cestodes in Intermediate hosts

Refers to self or cross fertilization

Lifespan of cestodes

This species of CESTODE only requires 1 intermediate hosts

2 Class of cestodes larva

Solid cestode larva which no scolex but w/ onscopiral hooks

Solid larva cestode w/ developing scolex and strobila

Cestode larva which also known as true bladder and enlarged central cavity

Vesicular/bladder cestode larva which slightly developed bladder and a scolex at the apex

Cestode larva which has several scolicies, cyst is well developed and have multiple invaginated scolicies

Larva of cestode which has daughter cyst present, well developed cyst w/ broad capsules and daughter cells

Scolex: Almond/spatulate, 2 suctorial plate

Scolex: Globular, Club shaped, w/ 4 muscular sucker w/ or w/o spine or hooks

Genital pore: Margins of proglottid

Genital pore: Center of proglottid

Uterine pore: Center of Segment

Uterine pore: Absent

Uterus: Sac like branched may contain eggs in capsule

Uterus; Coiled

Ova: Operculated and immature

Ova: non operculated, mature when laid

Onco larva: Coracidium, cilliated

Onco larva: Hexacanth embryo, non cilliated w/ 3 pairs of hooks

Meta cestode larva: Solid

Cystic or Bladder

The only pseudocyclophyllidean cestode

D. Latum ova liberated from eggshell which swims freely in the water

D. Latum ova measuring 550 um length w/ 3 pairs of hooklets

D. Latum ova which is has 6 mm length and has an invaginated anterior end w/ developing scolex and segments

D. Latum reservoir hosts

D. Latum 1st Intermediate host

D. Latum 2nd intermediate hosts

Migration od D. Latum proglottids can cause

Dx. Cause by D. Latum which infects Brain and Abdominal viscera causing intense inflammation and eosinophilia

Edematous swellingh of the eyelids cause by D. Latum

One of the prevention of D. Latum is freeze fresh water fishes for 24 hours in how many celsius

Tissue flukes main habitat