Blood%20and%20Blood%20Spatter

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Blood and Blood Spatter
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Brainpop

• Hemoglobin
• Blood Plasma
• White Blood Cells
• How many pints of blood does an adult human have?

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Components of Blood
Red Blood Cells

1. _____________
2. _____________
3. _____________
4. _____________

White Blood Cells
Plasma
Platelets
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Red Blood Cell(Erythrocytes)
oxygen

• Carry ________ to cells
• O2 binds to ___________

hemoglobin
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White Blood Cells(AKA Leukocytes)
protect

• Help _________ the body against _____________
• __________ are a type of WBC

foreign cells
Antibodies
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Table Talk

1. Give an example of a white blood cell
2. Contrast WBCs and RBCs

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BrainpopBlood Typing

1. What are the two components to your blood type?
2. What is hemolysis?
3. What is the Rh factor?
4. What is the most common blood type in Americans?
5. What is the least common blood type in Americans?

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Plasma and Platelets

• Plasma
• Transports __________
• Platelets
• Help form ___________

substances
blood clots
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ABO Blood Groups

• The four blood groups
• A
• B
• AB
• O

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Determining Blood Type

• Antigens
• Found on _____________ of RBC
• Type of antigen on RBC ____________ blood type
• Ex

surface
determines
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Continued

• Antibodies
• Destroy __________
• Non-matching _________ found in ___________
• E.x.

foreign cells
antibody
plasma
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Rh Factor

• Makes blood type either or
• Rh
• Rh antigen ________
• Rh-
• ____ Rh antigen

present
No
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Blood Typing
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Agglutination

• Occurs when matching __________ and antigens
  _______
• Results in ____________ of blood

antibodies
bind
clumping
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ABO Blood Types Chart
Blood Type Antigen on RBC Antibody in Plasma
A
B
AB
O
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When does the Rh factor effect blood
compatibility?

• When a ________ type mixes with a _________
• Most common in _________
• Why is this dangerous?

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Blood Typing Game

• http//nobelprize.org/educational/medicine/landste
  iner/

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Blood Typing Challenge!
Patient Blood Type Type(s) of Blood Transfused
1    
2    
3    
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Analysis

• A) Draw and label a B positive red blood cell.
  Draw the antibodies that would be found in the
  plasma.
• B) Draw and label an A negative red
• blood cell. Draw the antibodies
• that would be found in the plasma.
• Can a person with A negative blood donate blood
  to a person with A positive blood? Why or why
  not?

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Continued

1. Can a person with B positive blood donate blood
   to a person with B negative blood? Why or why
   not?
2. Explain why a person with A negative blood cant
   receive blood from a person with B negative
   blood. The answer is not because they are not
   the same blood type.
3. What would happen to a person if they were given
   the incorrect blood type during a transfusion?

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Crime Scene Analysis
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Blood Spatter Analysis

• http//www.sciencechannel.com/tv-shows/science-cha
  nnel-presents/videos/discoveries-this-week-blood-s
  platter.htm

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Forensic Serology

• The study of _____________
• E.x
• Blood
• Semen
• Fecal matter

body fluids
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Blood Spatter Patterns

• The pattern ________ makes when it lands on
  ___________
• Types of Spatter
• Passive
• Due to ___________

blood
a surface
gravity
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Continued

• Transfer
• Bloody objects __________ a surface
• Impact
• Blood ________ through air

touch
projected
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Analyzing Blood Spatter
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Analyzing Blood Spatter

• Spines
• Point in the ___________ of travel
• Parent Drop
• ______ from which satellite spatter ___________
• Satellite Spatters
• Drops that _________ from parent drop

direction
Drops
originate
break away
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Surface Texture

• Porous surfaces ______ spatter
• Ex.
• Cloth
• carpet

less
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Impact Angle Analysis

• The angle formed between ___________ and
  __________
• Velocity of spatter
• High
• Diameter _____________
• Medium
• Diameter _____________
• Low
• Diameter _______________

blood
a surface
less than 1 mm
between 1-4 mm
greater than 4 mm
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Table Talk
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Table Talk
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Area/Point of Convergence

• Determined by drawing a _______ through the long
  axis of a group of ____________
• Where the ______ of the group _________ point
  of convergence

line
bloodstains
lines
intersect
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At the Crime Scene

• Investigator must ask
• _______________
• _______________
• _______________

Human or animal blood
Victim or suspect
Type of weapon
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Luminol

• Chemical used to _________ blood
• Works by
• Binds to ______ in blood
• Shines under ____________

develop
iron
Black-light
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A Dingo Ate My Baby!!!

• Camping Trip August 1980
• Claimed a dingo took her daughter
• What type of evidence would you look for?

Lindy Chamberlain
https//www.youtube.com/watch?vVKxiqa6kdrI
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Analyzing Impact Angle
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Analyzing Impact Angle

• As the angle of impact _________ the spatter
  elongates
• fewer degrees on the protractor

increases
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Table Talk
Which set of results is correct?
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No Movement
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Walking Fast vs Walking Slow
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(No Transcript)
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The effect of movement on spatter

• Speed
• As speed increases spatters are ____________
• Direction
• Spines ________ the direction of travel

closer together
point in
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Table Talk
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(No Transcript)
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A little Heart Trivia

• How big is your heart?
• T or F Your heart grows as you grow
• T of F Both birds and humans have a 4 chambered
  heart
• T or F Age affects your heart rate
• T or F your hear rate drops while youre
  sleeping

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The Circulatory System(AKA The Cardiovascular
System)

• Made up of
• 1._____________
• 2._____________
• 3._____________
• Function
• _________ materials
• Removes ________
• Regulates ______________

Heart
Blood
Blood vessels
Transports
waste
body temp
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General Structure of the Heart

• 4 Chambers
• Two ______ (upper)
• Two ventricles (lower)
• 4 _________
• 2 major arteries and 3 major veins

atria
valves
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Pericardium

• Filled with pericardial fluid (protection)
• ________________

Shock absorption
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Heart Valves

• Flaps of tissue that _______ a back flow of
  blood.
• Only open in ______________

prevent
one direction
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Blood vesselshttps//www.youtube.com/watch?vq0s-
1MC1hcE

• Arteries
• Carry blood ______ from the heart
• Veins
• Bring blood ________ to the heart

away
back
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The Aorta
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Table Talk

• Predict what would happen if a valve did not work
  properly.
• Who would have a lower resting heart rate an
  athlete or a couch potato? Why?

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Capillaries

• Thin walls allow for ___________ in organs and
  tissues

gas exchange
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Brainpop Video

• Heartbeat
• Valve
• Is the heart a muscle?
• Which type of tissue is found in the heart?
• Heart Diagram

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Blood Flow

• https//www.youtube.com/watch?vKSbbDnbSEyM

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Heart Valves
Bicuspid (Mitral) valve
Tricuspid valve
Aortic valve
Pulmonary valve
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(Continued)
Upper Body
Deoxygenated Blood
Lungs
Oxygenated Blood
Lungs
Oxygenated Blood
Deoxygenated Blood
Lower body
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(Continued)
Upper Body
Deoxygenated Blood
Lungs
Lungs
Deoxygenated Blood
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(Continued)
Upper Body
Lungs
Oxygenated Blood
Lungs
Oxygenated Blood
Lower body
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(No Transcript)
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Circulation

• From SV, my RA took my RV to PA for LUNch. Then
  the Pole Vaulter took it to LA and LV for the
  Awesome Opening

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Table Talk

• Does the structure of the human heart allow for
  oxygen rich blood to be separated from oxygen
  poor blood?
• Which chambers are filled with oxygen poor blood
  during circulation?

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Circulation

• The _______ and/or the ______ vena cava bring
  O2 poor blood into the _____ ____
• Then the RA sends blood to the _____ ________
• The RV sends blood to the __________
• PA send blood to the ________

superior
inferior
Right atrium
right
ventricle
pulmonary artery
lungs
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(Continued)

• Pulmonary veins bring O2 ______ blood back from
  the _______ into the _______ atrium
• LA sends blood to the ______ _______
• LV sends blood to the ________
• Aorta sends O2 ______ blood to the rest of the
  body

rich
lungs
left
left ventricle
aorta
rich
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Analysis Questions

• Does the structure of the human heart allow for
  oxygen rich blood to be separated from oxygen
  poor blood?
• Which chambers are filled with oxygen poor blood
  during circulation?
• Arteries take blood away from the heart, which
  two structures in the heart are classified as
  arteries?
• Veins bring blood back to the heart, which
  structures in the heart would be classified as
  veins?

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Heartbeat
contraction

• Is the __________ and _________ of the
  ventricles.
• Controlled by
• Sinoatrial Node
• ___________

relaxation
Atrioventricular Node
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Generation of the Heartbeat

• SA Node
• __________ electrical signal
• AV node
• Relays the signal to the ventricles
• Ventricles __________

Creates
contract
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Rotten Student!

• Mrs. Rosewitz was writing the agenda on the board
  while her students worked on a lab at their
  desks. Suddenly she felt something fly past her
  head and heard two distinct smacks hit the board.
  She believes that one of her students threw fake
  blood at her. She spun around to see who the
  culprit was, but all students (suspects) seemed
  to be hard at work at their desks.