idk everything ig depper be crazy Flashcards by Mahi zzstu Ghelani

what does a crime scene sketch have?

point of origin, scale, legend, evidence key

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Locards principle?

Something is always left behind

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type a blood (smae with b) +antigens present

IAIA, IAi (a antigens for a and b antigens for b)

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AB blood +antigens present

IAIB (a and b antigens) can donate to only AB

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o blood + antigens present

ii (no antigens) can donate to all types

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presumptive:

identifies the possible presence of a substance

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confirmatory:

confirms a substance presence (structures)

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where can type a blood donate and recive

a and ab; A and o

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where can type b blood donate and recive

b and ab; b and o

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what can ab blood recive

all types

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what can o blood recive from

only O

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antibodyies on all blood types

a; anti b.
b; anti a.
ab; none,
o; both a and b.

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aggluination

when blood clumps when wrong blood is mixed

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red blood cells

tansport oxygen

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white blood cells

immunity

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platelets

help clot blood(wounds)

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plasma

recover from injuries, removes waste, prevents infection, provides nutrience

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erythrocytes

red blood cells (medium)

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leukocytes

white blood cells (big)

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thrombocytes

platelets (small)

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examples of presumtive tests

LCV, Luminol, and Kastle meyer

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examples of confirmatory tests

RSID test and ABO type testing

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steps of kastle meyer test

distiled water, possible blood, 95% ethanol, Pheolphalein solution, and hydrogen peroxide; pink color means positive (hemoglobin present)

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steps of kastle meyer test

distiled water, possible blood, 95% ethanol, Pheolphalein solution, and hydrogen peroxide; pink color means positive (hemoglobin present)

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if blood clumps with anti (x) then

blood type is (x)

REA

restriction enzyme analysis (dna cuts)

PCR

polymerase chain reation (recreating dna) thermal cycler

what is needed in pcr

template dna, primers (mark ends of dna), water, spare nucleotides (build dna).

enzymes in pcr and use

helicase undwins dna ladder, dna polymerase builds and replicates dna, primase helps dna start, liygase gluse pices together

hair root

medulla inner, cortex midde, cuticle outer

types of finger prints

loop, whorl, arch, tented arch

minutia

tiny charecteristics unique in fingerprints

physilogical responces to lying

heart rate, blood pressure, resperation rate, skin conductivity

experimental deign

identify problem, make hypothesis, plan experiment, conduct experiment, find data, communicate data

levels of organs

cells, tissue, organ, organ system

intugementory system

protects from water loss and outside enviorment

Lymphatic/ immune system

protects from sickness

circulatory

pransports nutrience and gasses

excreatory system

takes care of waste

endocrine system

hormone production

centeral and peripheral system

centeral; brain and spinal cord the other one; nurons

cerebellum

controls movement

cerebrum

controls thinking

brain stem

automatic body functions (like breathing)

spinal cord

communicates to brain

lobes of brain

frontal; thinking, speaking, memory, movement pariental; language and sensory occipital; vision temporal; hearing, learning, feelings

motor neurons

sends signals to body from brain

cause of death

specific injury; gunshot wound

mechanism of death

what happened physicology (inside body); extreme blood loss

manner of death

circumstances; homocide

epitheial tissue

rolls connected ; lining in mouth annd vessles, etc.

connective tissue

holds organs and connect/ supports body

nervous tissue

tissue made with nerves

muscle tissue

muscles

hypertonic, hypotonic, isotonic (omnosis)

less % leaves out to surrounding, opposite (into), equal

electrical current path in heart

SA to AV node to bundle of his to right and left bundle branches

purines

adenine and guanine

pyrimidines

cysotine and thymine

how many chromosomes in a human cell

what can dna be extracted from

bone, hair, preserved body parts, clothing, saliva/body fluids

ExoRI

G ! AATTC CTTAA ! G

Haelll

GG ! CC cc ! GG

Hindlll

A ! AGCTT TTCGA ! A

steps of dna analysis

DNA extraction, PCR, restricion digest, Gel electrophoresis

bonds in purines (rings)

bonds in pyrimadines (rings)

EKG wave

P QRS T

fibliration =

shake or quiver of heart

tachycardia

abnormal compression

bradycardia

slow heart rate

heart block

signal weak

normal heart rate range

60-100 bpm