1. Components of Blood Create a new folder in eBackpack-
Cardiovascular System
Upload “Intro to Blood Notes”

2. Erythrocytes (Red Blood Cells)
Anatomy
Physiology
-biconcave
-more surface area to carry oxygen

3. Erythrocytes Physiology Anatomy
-protein pigment which results in red color of blood and helps transport oxygen
-1/3 hemoglobin by volume

4. Erythrocytes Anatomy Physiology
-lack nuclei --elastic and flexible -formed in red bone marrow
-cannot reproduce -can pass through narrow capillaries -4,200,000 – 6,200,000 per mm3

5. Erythrocytes Physiology Anatomy -live about 120 days
-become less elastic and get damaged when passing through capillaries -macrophages (especially in the liver) destroy injured or old rbc’s
The macrophage destroys the red blood cells that no longer have their biconcave shape. This person probably has malaria.

6. Erythrocytes under the microscope

7. Leucocytes (White Blood Cells)
Anatomy
Physiology
5 types 1. neutrophil
Phagocitize (engulf) small particles
Click on the picture to watch the video

8. Leukocytes Anatomy Physiology
kills parasites and helps control inflammation and allergic reactions
2. Eosinophil
Can you identify this parasite?
It’s called a pin worm and it is commonly found in your anus! They make you itch.

9. Leukocytes Anatomy Physiology Basophil
releases heparin (prevents blood clots) and histamine (during an allergy it causes runny nose and watery eyes)

10. Leukocytes
Anatomy
Physiology
phagocytizes large particles
Monocyte

11. Leukocytes
Anatomy
Physiology
provides immunity
Lymphocyte

12. Leukocytes Anatomy Physiology formed in red bone marrow
5,000-10,000 mm3

13. Thrombocytes (Platelets)
Anatomy
Physiology
Cell fragment lack a nuclei live for 10 days formed in red bone marrow half the size of rbc
Controls blood loss from broken blood vessels 130, ,000 mm3

14. Important fact
*Rbc’s, wbc’s and platelets make up 45% of the blood and are collectively known as the “formed elements”
Electron microscope image
erythrocyte (left), thrombocyte
(center), and leukocyte (right)

15. Blood Plasma Anatomy Physiology
transports nutrients, gases, and vitamins regulates fluid and electrolyte balance maintains favorable pH
92 % water 8% dissolved organic molecules

16. Important fact Plasma makes up 55% of the blood.
You are now ready to complete the introductory homework.