Nematodes Flashcards
What is the general shape of nematodes?
A) Circular
B) Elongated and cylindrical
C) Segmented
D) Triangular
B) Elongated and cylindrical
How are nematodes classified in terms of gender?
A) Monogamous
B) Hermaphroditic
C) Dioecious
D) Asexual
C) Dioecious
How can you distinguish a male nematode from a female?
A) Longer body with a straight tail
B) Shorter body with a straight tail
C) shorter body with a dorsally curved tail
D) Shorter body with a ventrally curved tail
C) shorter body with a dorsally curved tail
Does nematodes possessing a complete mouth, nervous system, and digestive system?
Yes
In a heteroxenous nematode life cycle, which host serves as the 1st (definitive) host?
A) Intermediate host
B) Homoxenous host
C) Primary host
D) Secondary host
C) Primary host
What type of host can serve as both definitive and intermediate in a heteroxenous nematode life cycle?
A) Secondary host
B) Tertiary host
C) Homoxenous host
D) Intermediate host
A) Secondary host
Which part of the nematode possesses cephalic chemoreceptors?
A) Tail
B) Body
C) Head
D) Midsection
C) Head
What type of chemoreceptors are found in the posterior (tail) region of nematodes?
A) Caudal chemoreceptors
B) Cephalic chemoreceptors
C) Midsection chemoreceptors
D) Tail chemoreceptors
A) Caudal chemoreceptors
Which group of nematodes lacks caudal chemoreceptors?
A) Aphasmids
B) Phasmids
C) Cephalids
D) Tailoids
A) Aphasmids
What is the function of phasmids in nematodes?
A) Sensory organs in the head
B) Caudal chemoreceptors
C) Midsection chemoreceptors
D) Reproductive organs
B) Caudal chemoreceptors
Which nematodes belong to the group of aphasmids?
A) T. spiralis
B) T. trichiura
C) C. philippinensis
D) All of the above
D) All of the above
Which intestinal nematode is known as the “pudoc worm”?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Strongyloides stercoralis
D) Necator americanus
A) Capillaria philippinensis
What is the largest intestinal nematode, also referred to as the “giant intestinal” or “Eelworm”?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Strongyloides stercoralis
D) Necator americanus
B) Ascaris lumbricoides
Which intestinal nematode is recognized as the smallest and is commonly known as the “threadworm”?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Strongyloides stercoralis
D) Necator americanus
C) Strongyloides stercoralis
What is the term for the NEW world hookworm, also referred to as the human hookworm?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Strongyloides stercoralis
D) Necator americanus
D) Necator americanus
Which intestinal nematode is known as the Old world hookworm?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Ancylostoma duodenale
D) Trichuris trichura
C) Ancylostoma duodenale
What is the common name for Trichuris trichura?
Whipworm
Which intestinal nematode is commonly known as the Pinworm or Seatworm?
A) Capillaria philippinensis
B) Ascaris lumbricoides
C) Strongyloides stercoralis
D) Enterobius vermicularis
D) Enterobius vermicularis
What is another name for Trichinella spiralis?
A) Pork muscle roundworm
B) Guinea worm
C) Draculuncus medinensis
D) Serpent worm
A) Pork muscle roundworm
Which of the following is commonly known as Guinea worm?
A) Trichinella spiralis
B) Draculuncus medinensis
C) Trichina worm
D) Serpent worm
B) Draculuncus medinensis