1						2
				3													4				5
																							6
					7							8
			9					10
			11
	12										13										14
																									15
												16
					17
18																		19
		20											21
									22
23																24
											25
								26		27
	28
																						29
																				30
														31
		32
		33

Across 3. WBCs that organize a specific immune response 8. Describes blood that is oxygen-rich 9. Vessel that carries blood back to the heart with the help of built-in valves 11. Blood cell responsible for clotting; also known as platelets 13. Artery that runs from the shoulder to the elbow 16. Rapid spinning of blood samples to separate components by density 18. Artery that branches off the brachial artery and runs along the lateral side of the forearm 22. Vessel that carries blood away from the heart with its own muscular contractions 23. Veins on the lateral side of the anterior forearm 27. More common term for phlebotomy 28. WBCs that releases heparin and histamine 30. Colourless liquid component of blood 31. Veins on the medial side of the anterior forearm 32. Protein that activates thrombin 33. White blood cells

Down 1. Describes blood that is oxygen-poor 2. Largest artery in the body 4. Largest vein in the body 5. Colour of erythrocytes 6. WBCs that kill parasites and control inflammation 7. Protein mesh that solidifies the loose plug of platelets in a healing wound 10. Blood plasma protein that helps regulate blood pressure 11. Protein responsible for clotting; activated by prothrombin and works with fibrin 12. Globulin blood plasma protein that helps transport iron and copper 14. Leukocytes that become specialized as neutrophils, eosinophils or basophils 15. Surface of the arm, in front of the elbow (in the "crook" of the arm) 17. Blood plasma protein that has 3 major subtypes that assist in transport of molecules in blood 19. Heart chamber which receives deoxygenated blood returning from the body 20. Smallest, thinnest blood vessel 21. Protein that activates fibrin 24. WBCs that destroy large unwanted particles 25. WBCs that remove unwanted particles 26. Medical terminology: incision into a vein 29. Globulin blood plasma protein antibodies 31. Globulin blood plasma protein that helps transport lipids