Term Quiz 1

Biomedical Lab Diagnostics 450 with Hoag at Michigan State University

About this deck

By: David Westphal
Textbook:

Essentials of Human Parasitology
Created: 2012-01-16
Size: 24 flashcards
Views: 16

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Aschelminthes

Phylum of roundworms (nematodes) found in the class Nematoda.

Have round elongated bodies and coiled tails.

Females are usually larger than males.

Most are free-living.

Parasites have an intermediate and definitive host.

Apicomplexa

phylum consists of protozoans, and is in the class Sporozoa.

Complex life cycle consisting of sexual and asexual generations.

Ciliophora

Phylum consisting of protozoans which move by means of cilia.

Most are free living, Balantidium coli is the only known parasite.

Mastigophora

Subphylum of Sacromastigophora

a.k.a. flagellates due to method of movement

reproduce asexually

Most are free-living

Microspora

Phylum of tiny intracellular parasites

Mostly seen in immunocompromised.

Platyhelminthes

Phylum of flatworms

Hermaphroditic

Flat worms are found in the classes of Trematoda (flukes) and Cestoda (tapeworm).

Sarcodina

Subphylum of sacromastigophora

a.k.a. amebae

move by means of pseudopod projections

asexual

mostly free-living

Sacromastigophora

Phylum divided into the two subphylum Sacrodina and Mastigophora

asexual

Mostly free-living

chromatin

genetic material consisting of DNA

when found in the periphery of the nucleus is indicative of Entamoeba

Chromatoid body

rod-like structures of RNA w/ rounded or jagged ends

may be seen in the cysts of Entamoeba and flagellates

cilia

threadlike extentions, which are shorter and more numerous than flagella, and which arise from small basal granules.

commensal

parasites not known to cause disease in humans

parasite

a live organism living in, or on, and having some metabolic dependance on another organism known as the host.

cyst

the dormant stage of a protozoan, which is the infective stage for human and is significant in the transmission of disease.

definitive host

parasite reaches sexual maturity in this host and residues or reproduces.

intermediate host

immature or larval forms of parasites usually reside in these hosts, or where the parasite may undergo asexual reproduction.

endemic

the continual presense of a parasite in a particular area.

flagella

a whip like appendage used for movement.

hermaphroditic

a single organism possessing both male and female reproductive structures.

karyosome

a small mass of chromatin material found in the nuclei of certain protozoans.

miracidium

the ciliated larval stage of a fluke which develops w/in the ovum.

oncosphere

a six hooked larva contained w/in a cestode egg.

pseudopod

cytoplasmic projections used for movement.

trophozoite

the motile, actively multipling form of a protozoan, susceptible to destruction outside of the host, which usually lives in the large intestine causing tissue damage.

About this deck

By: David Westphal
Textbook:

Essentials of Human Parasitology
Created: 2012-01-16
Size: 24 flashcards
Views: 16

About StudyBlue

“I have used this website for three exams, and I see a huge difference in my test results.”
Naj