INTESTINAL NEMATODES: ASCARIS AND TRICHURIS

Question 1

flat and segmented

Answer 1

Phylum cestoda (tapeworms)

Question 2

Flat and unsegmented

Answer 2

Phylum trematoda (flukes)

Question 3

free living or obligate parasites

Answer 3

Nematodes

Question 4

Most organs of parasitic worms are greatly reduced but reproductive system is well developed

Answer 4

Nematodes

Question 5

• Nematodes have complete digestive tract and have separate sexes (male and female) and

Answer 5

dioecious

Question 6

• Trematodes and Cestodes are ____________

Answer 6

hermaphrodites or monoecious

Question 7

Elongated, unsegmented and cylindrical bodies
* Bilaterally symmetrical
* Tapered posterior end and rounded anterior end
ORE Pugh

Answer 7

Nematodes

Question 8

in nematodes _____ are generally smaller than female

Answer 8

male

Question 9

General features
* Both sexes are rounded anterior end and tapering or blunted end
* Males are curved posteriorly while females have flat posteriorly
sperm duct

Answer 9

Nematodes (Roundworms)

Question 10

Longitudinal muscles: probing and penetrating motion

Answer 10

The nematodes (roundworms)

Question 11

An arrangement of multiple longitudinal rows of muscle cells in each quadrant is termed __________

Answer 11

Polymyarian

Question 12

one with no more than2 rows of cells is called _________

Answer 12

Holomyarian

Question 13

one with 2 to 5 rows is meromyarian

Answer 13

Meromyarian

Question 14

fluid filled space within the bodies of roundworm (not covered by the membrane)

Answer 14

Pseudocelom

Question 15

Fluid-filled body cavity lying inside the external body wall of the nematode that bathes the internal organs, including the alimentary system and the reproductive system

Answer 15

Pseudocoelom

Question 16

helps with waste removal, circulation, better digestion, and shock absorption for the internal organs
pseudocoelom

Answer 16

Pseudocoelom

Question 17

In pseudocoelom the circulatory and respiratory are ______________

Answer 17

absent

Question 18

Nervous System

• The nematode nervous system is characterized by an
  (1) Circumoral brain or __________ around the ________ and;
  Cuticle
  Dorsal nerve
  Nerve ganglion
  Testis
  (2) four peripheral nerves/cords are found to run along the body
  _____________

Answer 18

• 1 Ventral nerve or cord
• 1 Dorsal nerve or cord
• 2 lateral nerves or cords

Question 19

Muscles branch to ____________, rather than nerves to muscles.

Answer 19

dorsal to ventral nerve cords

Question 20

__________ cuticular depressions present on the lips surrounding the mouth in the nematodes

Answer 20

Amphids

Question 21

________ - similar to amphids but are found at the tail

Answer 21

Phasmids

Question 22

What are the 3 stages

Answer 22

Adult
ova
larva

AOL

Question 23

Habitats in Human
define CHATS (small intestine)
and TAE (Large intestine)

Answer 23

CHATS
C - Capillaria Philippinensis
H - Hookworm
A - Ascaris Lumbricoides
T - Trichinella Spiralis
S - Strongyloides Stercoralis

Trichuris TrichiurA
Enterobius Vermicularis

Question 24

Give me the 7 worm of ascaris lumbricoides

Answer 24

Giant intestinal roundworm
Pinkworm
pinworm
threadworm
whipworm
sitworm
pudoc worm

Question 25

AHW Ascaris Hookworm Whipworm

Answer 25

Polymyarian meromyarian Holomyarian

Question 26

Important things to take note * A female adult worm can lay ________eggs per day ____________ of ova in soil lasts for __________ and can survive in the soil for ___________ * The hepato-tracheal migration phase of the parasite is about ______ Development into egg-laying adults take _________after ingestion Lifespan of adult worm: _________

Answer 26

200, 000 Embryonation - 3weeks - 2 years 14 days 9-11 weeks 1 year

Question 27

Fertile eggs measure ____________ * Has outer coarsely mammilated albuminous covering which may be lost in some eggs

Answer 27

Ascaris lumbricoides 45-70 um by 35-50um

Question 28

The_____________ are creamy-white to pinkish yellow when freshly expelled. The head is provided with 3 lips and a small triangular buccal cavity

Answer 28

The adult worm in ascaris lumbricoides

Question 29

____________ is tapered at both ends and large (20 to 35 cm long, up to 45cm)

Answer 29

Female worm in ascaris lumbricoides

Question 30

___________smaller and slender, curve posteriorly and equip with copulatory spicule ATLA

Answer 30

Male

Question 31

a disease in which eosinophils accumulate in the lung in response to a parasitic infection Mimicking pneumonia and asthma

Answer 31

Loeffler's syndrome

Question 32

give me the three diagnostic and treatment

Answer 32

Albendazole 400 mg 1 dose Mebendazole 500 mg 1 dose Pyrantel pamoate 10 mg/kg 1 dose

Question 33

Give me the 3 prevention

Answer 33

EHR Environmental Sanitation Hygiene Education Regular deworming

Question 34

_____________ has no lung migration in its life cycle * As soon as the embryonated ovum is ingested, the larvae will eventually mature into adults

Answer 34

Trichuris trichiura

Question 35

。 Flesh colored or pinkish slender worm Anterior ______ of the worm is attenuated and thin in contrast to the remaining posterior ______ which is fleshy and robust "Whip like appearance" Whip like apperance

Answer 35

Trichuris trichiura 2/3 1/3

Question 36

Trichuris trichiura common name

Answer 36

whipworm

Question 37

trichuris trichiura abundant in ______

Answer 37

TT47 protein