1. The Circulatory System
Structures?
Types of Blood Vessels?
Purpose of Blood Cells...

3. Structure of the Human Heart - Choices Darker blood vessel have no oxygen….
Septum
left or right atrium
right or left ventricle
valve (4x)
pulmonary vein
pulmonary arteries
aorta
Superior Vena Cava
Inferior Vena Cava

8. Structure of the Human Heart - Choices Darker blood vessel have no oxygen….
Septum - 8
left atrium - 3
right atrium - 12
right ventricle - 9
left ventricle - 7
valves (4x) - 6, 5, 11
pulmonary vein(2x) - 4, 13
pulmonary arteries(2x) - 14, 2
aorta - 1
Superior Vena Cava 15
Inferior Vena Cava - 10

9. Arteries vs. Veins Towards heart
Muscles of legs and arms pump the blood through the body (valves)
low pressure of thoracic cavity
thin-walled
wide
slow
Away from heart
Heart is used to pump the blood through the body
Thick-walled
Narrow

10. Which is the artery? The Vein?

12. One-way vales are present in veins.

13. 37-1

14. Plasma Mostly water (90%) 10% that remains…. Salts Sugars
Plasma proteins
Serum albumin: regulates osmotic pressure
Globulins: help with immune system
Fibrinogen: helps with blood clotting

15. Blood Cells
Red
White
Platelets

16. Red Blood Cells
Carry oxygen
Hemoglobin
Lack nucleus

19. White Blood Cells (leucocytes)
Produced in bone marrow
20 different types: e.g.
Macrophages: engulf bacteria
Lymphocytes:produce antibodies to fight disease

20. Platelets
clotting

22. Lymphatic System
A one-way system that brings excess tissue fluid back to the heart.
Lymph nodes sample this returning tissue for antigens (infections).

25. Keeton

26. The Circulatory System
Structures?
Types of Blood Vessels?
Purpose of Blood Cells...