Transcript Blood - Northwest ISD Moodle

BLOOD
Unit 10.1
Misconceptions
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Bloodletting
 As
far back as Greek times and as recently as the
1800’s
 Thought that draining the blood from the body would
“let” the sickness out and restore the individual to health
Bloodletting in History
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Famous individual
Had a sore throat and fever
Physicians bled him
Drained 5-7 pints of blood over 16 hours
Roughly 40-60% of the body’s blood supply
Died shortly after
George Washington
Bloodletting
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Bloodletting is still going on in some cultures
Blood
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½ of your next test will be over human blood
Test is next Wednesday
There will be assignments for this unit
Formative: Vocab Cards (due: 4/5)
Formative: online virtual lab (due: (4/4)
Formative: Heart Dissection Quiz (4/4)
Summative: Blood Disease Poster (4/5)
Vocab Cards
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Buffy Coat
Coagulation
Diapedesis
Erythropoiesis
Erythropoietin
Fibrin
Formed
Elements
Hematocrit
Antigens
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Hemoglobin
Hemolysis
Hemostasis
Plasma
Platelet plug
Platelets
Red blood cells
White Blood Cells
Rh factor
Agglutination
Vocab Cards
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Have three things:
 Definition
 What
does it do? Purpose/Function
 Analagy/Simile Sentence
A
red blood cell is like…
Blood Type Virtual lab
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https://www.classzone.com/books/hs/ca/sc/bio_0
7/virtual_labs/virtualLabs.html
Read the problem
Read the background (yellow tab, upper right
corner)
Complete the Explore portion
Complete the Procedure
 As
you complete the procedure and fill out the
corresponding lab journal, please print your lab journal
pages
Blood Disease Poster (must be physical,
not digital)
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Iron-Deficient Anemia
Aplastic Anemia
Pernicious Anemia
Sickle Cell Anemia
Cooley’s Anemia
Jaundice
Hemophilia
Polycythemia
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Acute Lymphocytic Anemia
Acute Myeloid leukemia
Chronic lymphocytic
leukemia
Chronic myeloid leukemia
Blood Disease Poster
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Description of RBC’s, label, picture (colored), Function
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How are they affected by the disease
Classification of White Blood Cells
Label, Picture (colored), Function, % of WBC’s
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Argranulocytes
Lymphocyte
 Monocyte
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Granulocytes
Neutrophil
 Eosinophil
 basophil
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Blood Disease Poster
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What is the disease?
What blood cells does it affect?
How does it affect them?
Symptoms
Famous people
Misconceptions?
Treatment
Blood Functions
Blood Functions
 Transports
 Oxygen
and carbon dioxide
 Waste products of metabolism (urea and lactic acid)
 Hormones
 Enzymes
 Nutrients (glucose, fats, amino acids, vitamins, and minerals)
 Blood Cells (white and red)
 Plasma proteins (fibrinogen, albumin, globulin)
Blood Functions
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Regulates
 Body
temperature
 Acid-base balance (pH)
 Fluid and electrolytes
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Protects
 White
blood cells protect against infection
 Antibodies detect foreign material
 Clotting factors prevent excessive bleeding
Blood Elements
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Formed Elements
 Solid
components
 45% of blood
 Red blood cells (erythrocytes)
 White blood cells (leukocytes)
 Platelets
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Plasma
 Liquid
component
 55% of blood
Blood Elements
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When added to centrifuge
Blood elements separate
Three layers
 Liquid
plasma: top
 Red blood Cells: bottom
 Buffy coat: White blood cells and platelets
Blood Elements
Blood Elements
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Hematocrit
 Total
blood volume that is composed of RBC’s
 Expressed as a percentage of total blood volume
 Men: 45%
 Women: 40%
 Altitude
 Hematocrit
can go up to 60-65%, because of an increase in
RBC production (oxygen carrying)
 Dehydration
 Can
cause hematocrit to decrease due to loss of plasma, or
decreased blood volume
Blood
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Roughly 8% of body weight
pH between 7.35 and 7.45
Average temp of 38 degrees Celsius (100.4)
5 times thicker than water