PLATYHELMINTHES Flashcards
What is the characteristics of platyhelminthes?
Bilaterally symmetrical and compressed dorso-ventrally
This possess both male and female genital organ
Hermaphrodites
What do the Platyhelminthes lacks?
Circulatory system
This life cycle has one host only
Monoxenous
This life cycle has several hosts
Heteroxenous
What is the morphology of CLASS CESTODA?
Elongated, Ribbon like and segmented
What do the CLASS CESTODA lacks?
No alimentary tract
What covers the class cestoda?
Tegument (Microtriches)
This is the head and mode of attachment of CLASS CESTODA
Scolex
What part of the class cestoda is the region of growth?
Neck
This is AKA as segments
Strobila
This is a chain of progressively developing proglottids
Strobila
How many is the number of segments of CLASS CESTODA?
4 - 4,000
What type of segment has one proglottid that overlaps another proglottids?
Craspedote
What type of segment does not overlap with other proglottids?
Acraspedote
This is a gravid proglottid that detaches from the strobila and exits the body of the host
Apolytic
This is excreted through the stool
Apolytic
The species eggs are released thru uterine or genital or directly into the host’s intestine. It will be excreted literally
Anapolytic
This is a specialized excretory cells in flatworm, involved in osmoregulation and waste removal
Flame cells
This is a network of tubules in some invertebrates that helps in excretion with flame cells as its functional units
Protonephridium
This has both male and female reproductive organs in the SAME INDIVIDUAL
Monoecious
This is a form of sequential hermaphroditism where the male reproductive organs mature first before the female organs reducing self-fertilization
Protandry
This is the male copulatory organ
Cirrus
What are the two main classes of Larvae?
Solid
Vesicular, bladder or cyst
This type of solid larvae has no scolex but has oncospiral hooks
Procercoid
This type of solid larvae has a developing scolex and strobila
Plerocercoid
This type of vesicular, bladder or cystic larvae is slightly developed bladder
Cysticercoid
The cyst is well developed and has a multiple invaginated scolices
Coenrus
The cyst is well developed brood capsules and daughter cells
Echinococcus or Hydatid cyst
What is the location of the genital pore of Pseudophyllidean and cyclophyllidean?
P: center of proglottid
C: Margins of proglottid
What is the location of the uterine pore of Pseudophyllidean and cyclophyllidean?
P: Center of segment
C: Absent
The uterus of this order is coiled
Pseudophyllidean
The OVA of this order is operculated and immature
Pseudophyllidean
This order has an HEXACANTH EMBRYO
Cylophyllidean
This order has a meta cestode larvae that is solid
Pseudophyllidean
This order has a meta cestode larvae that is cystic or bladder
Cyclophyllidean
