Blood, Cardiovascular System, and Lymphatic System

4. Red bone marrow and the thymus are the _____ lymphatic organs
5. What is Plasma mostly made out of?
11. Where does the path of blood through the heart begin?
12. The smallest element in blood
14. What does WBCs have that RBCs lack?
15. Where are RBCs and WBCs made?
17. What is the smallest blood vessel?
18. The heart is dividing into a right side and a left side
23. What kind of tissue divide the spleen into regions?
24. What is the largest artery in the heart?
25. Lymphatic vessels drain access fluid from the tissues and return it to the _____.
28. There are three functions of the Cardiovascular System: transport,______, regulation
29. When taking blood pressure, there are two numbers. Which one is on the top?
30. You can find this in the thoracic cavity between the trachea and the sternum

1. When the heart makes a lub sound, what is closing?
2. A fluid that is lighter than RBCs and WBCs
3. The universal blood type
6. In a person that has low hemoglobin, what could be wrong with them?
7. The lymphatic system helps defend the body against _____.
8. If the ______ stops working properly, signals from the____ keep the heart beating
9. Used to treat certain viral infections like hepatitis C
10. The organ that is located in the upper left area of the abdominal cavity posterior to the stomach
13. Stroke, heart attack, and aneurysm are associated with _______ and atherosclerosis
16. A simple word for Leucocytes
19. What matures in the Thymus?
20. RBC's can also be called...
21. The Lymphatic system is responsible for production, maintenance, and______ of lymphocytes
22. Platelets are fragments of
26. Person without a spleen can find it hard to fight off ______.
27. An ______ can occur when Atherosclerosis and Hypertension weakens the wall in an artery