Biomed Study Guide

Study this (not included in this study guide): Blood type reaction (Q9), how to read gel electrophoresis (Q11), do Q13, Q15-17, Q19, Q21, Q23

crime scene search methods

Grid, spiral, zone, link, line wheel

Hair DNA evaluation

determines sex, race, age

Blood DNA evaluation

uses presumptive and confirmatory tests to identify the blood

Fingerprint DNA evaluation

helps to distinguish between individuals

The steps of experimental design process

1. identify question

2. Create hypothesis

3. make an experiment

4. conduct experiment

5. analyze results

6. communicate findings

Dependent variable

the variable being measured that is being influenced

independent variable

the variable purposefully being changed to determine influence

presumptive testing

testing that suggests if a substance is found

confirmatory testing

confirms the substance found

Erthrocytes

Red blood cells

Leukocytes

white blood cells

Function of Erythrocytes

To transport oxygen from the lungs to the body’s tissues and carries carbon to be exhaled

function of platelets

to help stop bleeding

function of blood plasma

carries nutrients to body, helps remove waste and maintain body temp

4 building blocks of DNA

adenine (A), thymine (T), guanine (G), cytosine (C)

Blocks of DNA pairing

G+C and A+T

cause of death

the injury, trauma or disease that causes victim’s death

mechanism of death

what happens in the body as a result of injury

manner of death

circumstances of death (homicide, suicide)

Algor mortis

the cooling of the body after death

rigior mortis

stiffening of joints and muscles after death

livior mortis

pooling of blood following death causing discoloration

The major organs of the central nervous system

spinal cord and brain

The major organs of peripheral nervous system

makes up all the nerves including ganglia except the brain and spinal cord

major organs of cardiovascular system

the heart, the blood, and the blood vessels

how many compressions per breaths?

30 per 2

the ideal rate for compressions

100-120 bpm

what does defibrillation do?

it helps reset abnormal heart rhythm