Flatworms Flashcards
What is the phylum name for Flatworms?
Platyhelminthes
What are the 4 classes of Platyhelminthes?
- Turbellaria
- Monogenea
- Trematoda
- Cestoda
The species Schistosoma is part of which class of Platyhelminthes?
A. Monogenea
B. Cestoda
C. Turbellaria
D. Trematoda
D. Trematoda
The species Schistosoma
Is this species monecious or dioecious?
Dioecious
Dugesia are part of what class?
- Trematoda
- Cestoda
- Turbellaria
- Monogenea
Turbellaria
T/F: Dugesia can also be called planaria (planarian)
True!
T/F: Planarians (such as Dugesia) are not very common and are not found in freshwater environments
False!
T/F: The Dugesia species has a bilateral asymmetrical symmetry
False; They have bilateral symmetrical symmetry
What is the opening through which food enters called in a Dugesia cross section?
Pharynx
Dugesia
What is a columnar epithelium?
One of the 2 branches of the intestine
Dugesia
Which of these two muscles circular or longitudinal, contract?
Longitudinal
Dugesia
Which of the two muscles, circular or longitudinal, expand?
Circular
Dugesia body parts
What is cephalization?
The concentration of sensing organs at the anterior (top) of the body that form a head and a brain
Dugesia body parts
What are the paired spots on the head called?
Eye spots
Dugesia body parts
What are the “flaps” on the side of the head called?
Auricle(s)
Dugesia body parts
Do Planaria have body cavities?
No, they have a parenchyma which is in place of where a body cavity would normally be
Dugesia body parts
Planarians have Rhabdites within the epidermis. What are these Rhabdites?
Mucus cells
Dugesia body parts
T/F: Planarians do not have an intestine
False; they do!
Dugesia body parts
The proboscis sheath is what body part?
The mouth; helps with feeding
Dugesia body parts
FITB: The nerve cords have a ____-like system
Lateral
Dugesia body parts
T/F: Cilia is lined along the “bottom” of the planaria
True
The Monogenean fish fluke are [—–] parasites of the gills, skin and cloaca of fish
External
What are the major external structures of the Monogenean fish fluke? (2)
- Strong anterior sucker
- Large posterior (end) ophistaptor w/hooks
The [ ] liver fluke is part of which class of Platyhelminthes?
There will be 2 answers for this!
A. Trematoda
B. Monogenea
C. Cestoda
D. Turbellaria
- Human
- Trematoda
The tapeworm is part of the __________ class
A. Turbellaria
B. Cestoda
C. Trematoda
D. Monogenea
B. Cestoda
Tapeworm
The “scolex” is known as what type of body part?
The head
Tapeworm
What does “gravid” mean?
Carrying eggs/young
Tapeworm body parts
The ___________ proglottid is budded off the scolex at a fairly small size
- Mature
- Immature
- Gravid
Immature
Tapeworm body parts
The mature proglottid is **, ?-ecious, and have fully functional male and female reproductive organs
Sexual, mono-ecious
