Intestinal Nematodes

Question 1

Syncytium of cells and fibers

Answer 1

Hypodermis

Question 2

Longitudinal cords

Answer 2

Somatic muscles

Question 3

For secretion of cuticle

Answer 3

Hypodermis

Question 4

Not lined with mesothelium

Answer 4

Pseudocoele

Question 5

Rectum in males

Answer 5

Cloaca

Question 6

Nerve center

Answer 6

Circumesophageal ring

Question 7

Inflations of cuticle for tactile receptors

Answer 7

Papillae

Question 8

Laterally placed minute receptors in the cephalic/cervical area of all nematodes

Answer 8

Amphids

Question 9

Roundworms with receptors located posteriorly are called:

Answer 9

Phasmids

Question 10

Modified anus called cloaca

Answer 10

Ejaculatory duct

Question 11

Coiled

Answer 11

T. trichura

Question 12

Curved tail

Answer 12

A. lumbricoides; E. vermicularis

Question 13

Copulatory bursa

Answer 13

Hookworm

Question 14

To keep vulva open

Answer 14

Spicules

Question 15

Single reproductive system

Answer 15

Trichinella

Whipworm

Question 16

Double reproductive system

Answer 16

Ascaris
Enterobius
Hookworms

Question 17

Few eggs

Answer 17

Strongyloides

Question 18

> 200,000 eggs/female/day

Answer 18

Ascaris

Question 19

Mating is once

Answer 19

enterobius

Question 20

Mating is continuous

Answer 20

Syngamus

Question 21

Mating is signaled by _________ released by the females, with structural modifications in the vulva.

Answer 21

Sex pheromones

Question 22

Sputum

Answer 22

Syngamus

Question 23

Urine

Answer 23

Dioctophyma

Question 24

Blood

Answer 24

Microfilaria

Question 25

Tissue

Answer 25

Onchocercans

Question 26

Almost fully embryonated

Answer 26

Enterobius

Question 27

Require embryonation in soil

Answer 27

Ascaris, hookworm

Question 28

Ascaris is prevalent among young children ages ________.

Answer 28

5-15 year old

Question 29

Polymyarian types of somatic muscle arrangement

Answer 29

Ascaris adult worms

Question 30

To firmly grasp the female during copulation

Answer 30

Ventrally curved posterior end

Question 31

To keep the vulva of the female open during copulation

Answer 31

Tail with 2 spicules

Question 32

Smooth finely striated cuticle

Answer 32

Ascaris adult worm

Question 33

Conical anterior/posterior extremtities

Answer 33

Ascaris adult worm

Question 34

Infective stage of Ascaris lumbricoides

Answer 34

Fully embryonated egg