For Love

Question 1

➢ Helminths practically comprise a no. of completely unrelated phyla but with superficial similarities:
✓ _________
✓_________
✓_____________
✓______

Answer 1

Platyhelminthes

Nematoda

Annelida

Acanthocephala

Question 2

HELMINTHS OF MEDICAL IMPORTANCE
➢ Do not, generally, ________ (save ________,________,________,_______)

Answer 2

multiply in man

H. nana, S. stercoralis, E. vermicularis, the filariae

Question 3

Nature/severity of pathology ≈ ________

Answer 3

worm burden

Question 4

Subclinical infections > _______

Answer 4

acute diseases

Question 5

Transmission to man

✓ contact with &/or ______________

✓ consumption of __________

✓ _____ of insect vectors (the filaria

✓ _______________ entry

Answer 5

ingestion of contaminated soil or food (STHs)

raw infected foodstuffs

bites

active percutaneous larval

Question 6

➢ Parasitological diagnosis is related to prepatency

T/F

Answer 6

T

Question 7

PLATYHELMINTHES
Members are:
➢ ____________ flattened
➢ Hermaphroditic (save the _______)
➢ With (complete or incomplete?) gut

Answer 7

Dorso-ventrally

schistosomes

Incomplete

Question 8

➢ 2 major classes of med. important platyhelmintges

__________
_________-

Answer 8

Trematoda (flukes):

Cestodes(tapeworms(

Question 9

▪ Trematoda (flukes):
✓ One of the most abundant parasitic groups
✓ Major spp. infect > 2.4 billion people globally
✓ Almost always food-borne, except Schistosoma spp. ✓ Endoparasitic in man
✓ Tegument, partially absorptive
✓ Gut & suckers well developed
✓ Life cycles complex & heteroxenous

Question 10

▪ Trematoda (flukes) is One of the most abundant parasitic groups

T/F

Answer 10

T

Question 11

▪ Trematoda (flukes):

✓ Almost always ____-borne, except _______ spp.

✓ ____parasitic in man

Answer 11

food; Schistosoma

Endo

Question 12

▪ Trematoda (flukes):

✓ Tegument is (completely or partially?) absorptive

✓ Gut & suckers are (well or poorly?? developed

✓ Life cycles are (simple or complex?) & (homo or hetero?) genous

Answer 12

Partially

Well

Complex; hetero

Question 13

Cestoda (tapeworms):

✓body is ______-like, gutless endoparasites

✓ Tegument (Poorly or highly?) absorptive

✓ Body is (segmented or non-segmented?)

Answer 13

Ribbon

Highly

segmented

Question 14

Cestoda (tapeworms):

✓ Suckers is @ _________ end

✓ Life cycles are (direct or indirect?) & (simple or complex?)

Answer 14

anterior

Ìndirect; complex

Question 15

NEMATODA
➢ segmented or unsegmented

Monoecious or dioecious?

_________ shape, with ______

Answer 15

Unsegmented

dioecious

cylindrical

Cuticle

Question 16

NEMATODA

➢ Majorly ____-inhabiting but few parasitize ______, other tissues

Answer 16

gut

blood

Question 17

NEMATODA

➢ Mouth opening _____ surrounded by ______/______, ________

Answer 17

sometimes

papillae/lips

buccal capsule

Question 18

NEMATODA

➢ Mostly infect ____ directly ( __________ or ________ )

Answer 18

Man

orally or percutaneously

Question 19

NEMATODA

L3 ➢ Growth → adulthood requires ____ moults

Answer 19

4

Question 20

Nematodes(way of entry)

Free larvae migrate percutaneously:

____,_____,_____

Answer 20

Ancylostoma Necator Strongyloides

Question 21

Nematodes(way of entry)

Infective larvae within eggs following maturation in open air:

_______,________,_______

Answer 21

Ascaris

Trichuris

Enterobius

Question 22

Nematodes(way of entry)

Larvae in insects (as intermediate hosts

______,______,_______,______

Answer 22

Wuchereria

Brugia

Loa

Onchocerca.

Question 23

Nematodes(way of entry)

Larvae in crustaceans (as intermediate hosts 2):

__________.

Answer 23

Dracunculus