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Basic Blood > Terminology > Flashcards

Terminology Flashcards

1
Q

Accompanying Drop

A

A small blood drop produced as a by-product of drop formation

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2
Q

Altered Stain

A

A bloodstain with characteristics that indicate a physical change has occurred

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3
Q

Angle of impact

A

The acute angle (alpha), relative to the plane of a target, at which a blood drop strikes the target

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4
Q

Area of Convergence

A

The area containing the intersections generated by lines drawn through the long axes of individual stains that indicates in two dimensions the location of the blood source

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5
Q

Area of Orgin

A

The three dimensional location from which seater originated

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6
Q

Blood spatter pattern

A

A bloodstain pattern resulting from blood drops that traveled in the opposite direction of the external force applied; associated with an entrance wound created by a projectile

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7
Q

Blood clot

A

A gelatinous mass formed by a complex mechanism involving red blood cells, fibrinogen, platelets, and other clotting factors

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8
Q

Bloodstain

A

A deposit of blood on a surface

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9
Q

Bloodstain pattern

A

A grouping or distribution of bloodstains that indicates through regular or repetitive form, order, or arrangement the manner in which the pattern is deposited

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10
Q

Bubble ring

A

An outline within a bloodstain resulting from air in the blood

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11
Q

Cast-off Pattern

A

A bloodstain pattern resulting from blood drops released from an object due to its motion

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12
Q

Cessation Cast-off Pattern

A

A bloodstain pattern resulting from blood drops released from an object due to its rapid deceleration

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13
Q

Directionality

A

The characteristic of a bloodstain that indicates the direction blood was moving at the time of deposition

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14
Q

Directional Angle

A

The angle (gamma) between the long axis of spatter stain target and a defined reference line on the target

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15
Q

Drip Pattern

A

A bloodstain pattern resulting from a liquid that dropped into another liquid, at least one of which was blood

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16
Q

Drip Stain

A

A bloodstain resulting from a falling drop that formed due to gravity

17
Q

Drip Trail

A

A bloodstain pattern resulting from the movement of a source of drip stains between two points

18
Q

Edge Characteristic

A

A physical feature of the periphery of a bloodstain

19
Q

Expiration Pattern

A

A bloodstain pattern resulting from blood forced by airflow out of the nose, mouth or wound

20
Q

Flow Pattern

A

A bloodstain pattern resulting from the movement of a volume of blood on a surface due to gravity or movement of the target

21
Q

Forward Spatter Pattern

A

A bloodstain pattern resulting from blood drops that traveled in the same direction as the impact force

22
Q

Impact Pattern

A

A bloodstain pattern resulting from an object striking liquid blood

23
Q

Insect Pattern

A

A bloodstain resulting from insect activity

24
Q

Mist Pattern

A

A bloodstain pattern resulting from blood reduced to a spray of micro-drops as a result of the force applied

25
Q

Parent Stain

A

A bloodstain from which a satellite stain originated

26
Q

Perimeter Stain

A

An altered stain that consists of the peripheral characteristics of the original stain

27
Q

Pool

A

A bloodstain resulting from an accumulation of liquid blood on a surface

28
Q

Projected Pattern

A

A bloodstain pattern resulting from the ejection of a volume of blood under pressure

29
Q

Satellite Stain

A

A smaller bloodstain that originated during formation of the parent stain as a result of blood impacting a surface

30
Q

Saturation Stain

A

The stain resulting from the accumulation of liquid blood in an absorbent material

31
Q

Serum Stain

A

The stain resulting from the liquid portion of blood (serum) that separates during coagulation

32
Q

Spatter Stain

A

A bloodstain resulting from a blood drop dispersed through the air due to an external force applied to a source of liquid blood

33
Q

Splash Pattern

A

A bloodstain pattern resulting from a volume of liquid blood that falls or spills onto a surface

34
Q

Swipe Pattern

A

A bloodstain pattern resulting from the transfer of blood from a blood-bearing surface onto another surface, with characteristics that indicate relative motion between the two surfaces

35
Q

Target

A

A surface onto which blood has been deposited

36
Q

Transfer stain

A

A bloodstain resulting from contact between a blood-bearing surface and another surface

37
Q

Void

A

An absence of blood in an otherwise continuous bloodstain or blood pattern

38
Q

Wipe Pattern

A

An altered bloodstain pattern resulting from an object moving through a preexisting wet bloodstain

Basic Blood (4 decks)

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