1. Blood

2. Erythrocytes? Leukocytes? Anemia? Hemoglobine?
What Do You Know About?
Erythrocytes?
Leukocytes?
Anemia?
Hemoglobine?
Blood in General? Types?

4. Components of the Blood
55% Plasma: 92% water; 8% ions/proteins
45% Formed Elements
Erythrocytes (red blood cells) = 99%
Leukocytes (white blood cells) = less than 1%
Platelets = less than 1%

7. Erythrocytes Transports oxygen Lack of a nucleus Sacs of hemoglobin
Outnumber WBCs 700 to 1

8. Hemoglobin
Iron-containing protein (4)
Transports oxygen (1 per iron)

9. Anemia Decrease in the oxygen-carrying capacity of blood Causes:
Excessive bleeding
Iron Deficiency
Sickle-cell anemia

11. Polycythemia Excessive or abnormal increase in RBCs Causes:
May result in bone marrow cancer
Living in high altitudes
Causes blood flow to be “sluggish”

12. Leukocytes Important for defense (mobile army) Contains nuclei
Can Slip out of blood vessels (chemotaxis), move by amoeboid motion

13. Types/Functions (from most to least abundant)
Neutrophils: 1st responders, phagocytes
Lymphocytes: B cells, T cells, natural killer cells
Monocytes: phagocytosis
Eosinophils: fights parasites
Basophils: releases histamine (a vasodilator)

14. HELP!
Never
Let
Monkey
Eat
Bananas

15. Question!
An increase in the number of WBCs usually indicates……?

16. Platelets
Not true cells – but cell fragments
Important for clotting