Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Parasitology [LAB] > Exercise 4: DIFFERENT ELEMENTS FOUND IN FECAL EMULSION > Flashcards

Exercise 4: DIFFERENT ELEMENTS FOUND IN FECAL EMULSION Flashcards

1
Q

are large cells containing abundant, irregular cytoplasm and a prominent nucleus about the sîze of RBC

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

They may occasionally appear folded and show all stages of disintegration

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

It is not unusual to find these in stool because they originate from the linings of the alimentary tract, represent normal cellular sloughing and have no pathologic significance

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

An increased amounts are more frequently seen in inflammation of
the bowel.

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

An increased amounts are more frequently seen in inflammation of
the bowel.

A

Epithelial cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

are large, mononuclear phagocytic cells with large vesicular nuclei.

Usually, the ratio of nucleus to cytoplasm in a macrophage is approximately 1:6 or 1:8

They may appear vacuolated and frequently contain remnants of ingested leukocytes and erythrocytes.

They show various degrees of necrosis and may appear as outlines of cells or ghost cells.

They can be mistaken for amoebic trophozoites but lack motility

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

are large, mononuclear phagocytic cells with large vesicular nuclei.

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Usually, the ratio of nucleus to cytoplasm is approximately 1:6 or 1:8

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

They may appear vacuolated and frequently contain remnants of ingested leukocytes and erythrocytes.

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

They show various degrees of necrosis and may appear as outlines of cells or ghost cells.

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

They can be mistaken for amoebic trophozoites but lack motility

A

Macrophages

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

are round or slightly elongated with an irregular outline; measuring 10.20 p in diameter; cytoplasm is shiny, clear and granular with tiny vacuoles: and have multilobed nuclei

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

The predominant leukocyte found in feces is the neutrophil (polymorphonuclear cell. PMN) and can mimic amoebic cysts

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

When PMNs have been in tile gut for some time and have begun to
disintegrate, the nuclear morphology becomes indistinct; the normal
lobed nucleus is broken into fragments that are inconsistent in size and
shape, sometimes with a star-shaped false karyosome

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

They are best seen when I or 2 drops of 10% acetic acid are added to a drop of fecal emulsion on the slide (identified using HPO).

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

A few are normally present

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

An excess (as few as 3/HPF) occurs in bacillary dysentery, other
inflammatory states and ulcerative conditions.

A

Leukocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

may appear as smooth, non-nucleated, biconcave disks (a) measuring approximately 6-8 p in diameter, or the cells shrink and appear crenated (b) or irregularly shaped, or become swollen (c).

A

Erythrocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

They do not occur normally in feces

A

Erythrocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Only found when the lesion (ulcerations or bleeding) is in the colon, rectum, or anus.

A

Erythrocytes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

(a) are easily identified by their colorless, prism shape that resembles a coffin-lid

A

Triple phosphates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

The most common (b) is the colorless, octahedral envelope.

A

Calcium Oxalates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

They are associated with foods high in oxalic acids, such as tomatoes, asparagus, and ascorbic acid.

A

Calcium Oxalates

23
Q

(a) appear as sheaves of large needles or short, delicate curved needles which may occur in such thick masses that the shape of individual crystals cannot be made out. When heated. they form globules.

A

Fatty acid crystals

24
Q

(b) may be round, oval or irregular (like a section of a tree trunk), brownish-yellow or colorless, with lines radiating from the center, visible near the nm, and nothing in the center.

A

Soaps

25
Q

They may occur as short, plump crystals or scales

A

Soaps

26
Q

They are common after a fatty meal.

A

Fatty Acid Crystals and Soaps

27
Q

(C) appear as round, or irregular, highly refractive globules.

A

Neutral fats

28
Q

(d) appears as circular ring, usually perfectly round, very refractile, and margins are made up of several layers

A

Mineral oil

29
Q

Note the differences of size in the preparation and the absence of contents

A

Neutral fats and Mineral Oil

30
Q

are colorless, pointed, often needle-like

A

Charcot-Leyden crystals

31
Q

They are released together with the disintegration of eosinophils.

A

Charcot-Leyden crystals

32
Q

They may indicate presence of hypersensitivity, or ulcerative condition of the intestines, especially amoebiasis.

A

Charcot-Leyden crystals

33
Q

are yellowish, or brown needle, or r1ombic forms

A

Hematoidin crystals

34
Q

They occur after intestinal hemorrhage.

A

Hematoidin crystals

35
Q
  • occur in spirals or tubes having reticulated markings and come from the veins of leafy vegetables
A

Vegetable spirals or fibers

36
Q
  • have thick, double-contoured cellulose shells and contain chlorophyll bodies. They may be confused with parasite ova of vegetable tissue
A

Vegetable cells

37
Q

has a honeycomb appearance

A

Cellulose framework

38
Q
  • have a homogeneous and highly refractive wall with a distinct central canal which extends the whole length of the hair wide and clean-cut at one end and tapered at the other end. They may resemble larvae of some worms
A

Vegetable hairs

39
Q
  • appear in varying sizes and shapes
  • the smaller pieces are irregular or oval and are colored yellow showing they have been partially digested
  • the large pieces have parallel sides and irregular surfaces and may show transverse and longitudinal striations; these are undigested meat fibers
A

Muscle Fibers

40
Q
  • consists of colorless or yellowish threads with poorly defined edges and indefinite longitudinal striations: they swell and become gelatinous when a few drops of glacial acetic acid is added
A

Connective Tissue

41
Q
  • generally accompanies connective tissue; its outlines are more definite, the fibers branch and do not swell but become more distinct in acetic acid
A

Elastic Tissue

42
Q

are round or oval and elongated, but the outline is always irregular, with rough indentations, contain masses of starch packed closely.

A

Starch granules

43
Q

They are whitish or grayish-yellow in color iodine solution turns it to violet.

A

Starch granules

44
Q

These granules are the residue of starchy foods such as potatoes, beans, yams, or cassavas

A

Starch granules

45
Q

1 Cocci and bacilli
2 They constitute about 1/3 of the weight of dried feces, most, if not all,
of which are non-pathogenic.

A

Bacteria

46
Q

appear as small, refractile, oval structures (a) that may or may not contain a bud; often contain eccentric cluster of 3—6 small granules.

A

Yeasts

47
Q

appear as branched, mycelial forms (b), or as arthrospores (C) that are rectangular, with a very clear oval cytoplasm inside.

A

Molds

48
Q

They are rare and are usually a contamination from unclean vessels or from air.

A

Molds

49
Q

They are rare and are usually a contamination from unclean vessels or from air.

A

Molds

50
Q

are microscopic cells that compose a pollen

A

Pollen grains

51
Q

Passage in stool results from ingestion or inhalation

A

Pollen grains

52
Q

They are of different types depending on the geographical area and the local diet

A

Pollen grains

53
Q

Their peculiar and distinctive geographical shapes and other features (saw-like or rounded projections. etc…) help to distinguish them from eggs of the parasites

A

Pollen grains

54
Q

FREE PASS FOR HIGH SCORES

A

Parasitology [LAB] (15 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions