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Medical Terminology 100 > Medical Prefixes > Flashcards

Medical Prefixes Flashcards

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USMLE® Step 1 flashcards
1
Q

a-

A

without

Example: aphasia (without speech)

Prefix Indicating Disease or Abnormal Condition

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2
Q

an-

A

without

Example: anoxia (without oxygen)

Prefix Indicating Disease or Abnormal Condition

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3
Q

anti-

A

against

Example: antibiotic (against life)

Prefix Indicating Disease or Abnormal Condition

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4
Q

brady-

A

slow

Example: bradycardia (slow heartbeat)

Prefix Indicating Disease or Abnormal Condition

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5
Q

de-

A

without

Example: dehydration (without water)

Prefix Indicating Disease or Abnormal Condition

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6
Q

dys-

A

painful, difficult, abnormal

Example(s): dysuria (painful urination); dyspnea (difficulty breathing); dystrophy (abnormal development)

Prefix Indicating Disease or Abnormal Condition

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7
Q

pachy-

A

thick

Example: pachyderma (thick skin)

Prefix Indicating Disease or Abnormal Condition

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8
Q

tachy-

A

fast

Example: tachycardia (fast heartbeat)

Prefix Indicating Disease or Abnormal Condition

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9
Q

pseudo-

A

false

Example: pseudocyesis (false pregnancy)

Prefix Indicating Direction or Body Position

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10
Q

ante-

A

in front of

Example: anteorbital (in front of eye socket)

Prefix Indicating Direction or Body Position

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11
Q

endo-

A

within; inner

Example: endoscope (instrument for viewing within); endometrium (inner [lining of] uterus)

Prefix Indicating Direction or Body Position

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12
Q

epi-

A

above

Example: epigastric (above stomach)

Prefix Indicating Direction or Body Position

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13
Q

ex-

A

outward

Example: exophthalmos (eyes [bulging] outward)

Prefix Indicating Direction or Body Position

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14
Q

extra-

A

outside of

Example: extraocular (outside of eye)

Prefix Indicating Direction or Body Position

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15
Q

hypo-

A

below

Example: hypogastric (below stomach)

Prefix Indicating Direction or Body Position

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16
Q

in-

A

inward

Example: inhalation (to breathe inward)

Prefix Indicating Direction or Body Position

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17
Q

infra-

A

below

Example: infraorbital (below eye socket)

Prefix Indicating Direction or Body Position

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18
Q

inter-

A

between

Example: intervertebral (between vertebrae)

NOTE: The prefixes intra- and inter- are commonly confused. Both come from Latin words, intra meaning “within” and inter meaning “between.”

Prefix Indicating Direction or Body Position

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19
Q

intra-

A

within; inside

Example: intravenous (inside vein)

NOTE: The prefixes intra- and inter- are commonly confused. Both come from Latin words, intra meaning “within” and inter meaning “between.”

Prefix Indicating Direction or Body Position

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20
Q

para-

A

beside; two like parts of a pair

Example: paranasal (beside the nose); paraplegia (paralysis of two like parts of a pair [the legs])

Prefix Indicating Direction or Body Position

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21
Q

peri-

A

around

Example: periodontal (around tooth)

Prefix Indicating Direction or Body Position

22
Q

retro-

A

behind

Example: retroperitoneal (behind the peritoneum)

Prefix Indicating Direction or Body Position

23
Q

sub-

A

under

Example: subcutaneous (under skin)

Prefix Indicating Direction or Body Position

24
Q

supra-

A

above

Example: suprapubic (above pubic bone)

Prefix Indicating Direction or Body Position

25
Q

trans-

A

across

Example: transurethral (across urethra)

Prefix Indicating Direction or Body Position

26
Q

bi-

A

two

Example: transurethral (across urethra)

Prefix Indicating Number or Quantity Measurement

27
Q

di-

A

two

Example: diplegia (paralysis of two extremities)

Prefix Indicating Number or Quantity Measurement

28
Q

hemi-

A

half

Example: hemiplegia (paralysis of half [one side] of body)

Prefix Indicating Number or Quantity Measurement

29
Q

hyper-

A

excessive

Example: hyperemesis (excessive vomiting)

Prefix Indicating Number or Quantity Measurement

30
Q

hypo-

A

insufficient

Example: hypocalcemia (insufficient calcium in blood)

NOTE: The prefix hypo- is used several different ways. It comes from the Greek word hupo meaning “under” and is used to indicate a smaller than normal amount. It is also used to indicate a position underneath another structure.

Prefix Indicating Number or Quantity Measurement

31
Q

micro-

A

small

Example: microscope (instrument for viewing small things)

Prefix Indicating Number or Quantity Measurement

32
Q

mono-

A

one

Example: monoplegia (paralysis of one extremity)

Prefix Indicating Number or Quantity Measurement

33
Q

multi-

A

many

Example: multigravida (many [more than one] pregnancies)

Prefix Indicating Number or Quantity Measurement

34
Q

nulli-

A

none

Example: nulligravida (no pregnancies)

Prefix Indicating Number or Quantity Measurement

35
Q

pan-

A

all

Example: pansinusitis (inflammation of all sinuses)

Prefix Indicating Number or Quantity Measurement

36
Q

poly-

A

many

Example: polyarteritis (many inflamed arteries)

Prefix Indicating Number or Quantity Measurement

37
Q

primi-

A

first

Example: primigravida (first pregnancy)

Prefix Indicating Number or Quantity Measurement

38
Q

quadri-

A

four

Example: quadriplegia (paralysis of all four extremities)

Prefix Indicating Numbers or Quantity Measurements

39
Q

tri-

A

three

Example: triplegia (paralysis of three extremities)

Prefix Indicating Number or Quantity Measurement

40
Q

ultra-

A

excess

Example: ultrasound (excess [high] sound-wave frequency)

Prefix Indicating Number or Quantity Measurement

41
Q

uni-

A

one

Example: unilateral (one side)

Prefix Indicating Number or Quantity Measurement

42
Q

ante-

A

before

Example: antepartum (before birth)

Prefix Indicating Time

43
Q

neo-

A

new

Example: neonate (newborn)

Prefix Indicating Time

44
Q

post-

A

after

Example: postpartum (after birth)

Prefix Indicating Time

45
Q

pre-

A

before

Example: premenstrual (before menstruation)

Prefix Indicating Time

46
Q

auto-

A

self

Example: autograft (graft from self [one’s own body])

General Prefix

47
Q

echo-

A

a repeating sound

Example: echocardiography (process of recording repeating sounds from the heart)

General Prefix

48
Q

eu-

A

normal; good

Example: eupnea (normal breathing)

NOTE: The prefix eu- comes from the Greek word eu and has a general positive meaning. It can be translated as “good,” “normal,” or “well.” It is the opposite of dys-.

General Prefix

49
Q

hetero-

A

different

Example: heterograft (graft from different [species])

General Prefix

50
Q

homo-

A

same

Example: homograft (graft from same [species])

General Prefix

51
Q

per-

A

through

Example: percutaneous (through skin)

General Prefix

52
Q

intradermal

A

Medical Terminology 100 (4 decks)

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