BLOOD
“The River of Life”
Components of Blood include
The formed elements - living cellsare suspended in the nonliving fluidmatrix called plasma.
P. 295 in your text.
Formed Elements include… Erythrocytes –RBCs - Transport oxygen and help transport carbon dioxideLeukocytes – WBCs – Defense and immunityThrombocytes – Platlets – Blood clotting
P. 299 in your text.
Platlets
Activated Platlets
Blood Types
• A and B blood types are both Dominant traits.
• A and B genes show co-dominance expression.
• O is recessive to A and B.
• RH positive blood types are Dominant to negative.
• Blood types are multiple allelic trait because it takes multiple genes to produce a blood type.
Who can receive ….
Agglutination
Sickle Cell Anemia
The result of a point mutation in the DNA of the affected individual.Caused by a recessive gene.
Rh- Mothers with RH+ babies
The mother begins Producing Anit + Antibodies during the 1st
Pregnancy and if she becomes pregnant with a 2nd RH+ baby her Antibodies will cross thePlacenta and attack the Baby’s blood causing a condition called hemolytic disease of the New born.
Hema - WHAT?
• Hematocrit
• Hematopoiesis
• Hemostasis
• Hemorrhage
Blood Composition QuestionsP. 294 & 295
1. What percent of whole blood is composed of plasma?
2. What is the function of water in blood?
3. What is the function of electrolytes? List 6 electrolytes.
4. What is the function of albumin?
5. What are the functions of fibrinogen and globulins?
6. List the substances transported by blood.
7. What % of blood is made of the formed elements?
8. What is hemoglobin?
9. What is hematocrit?