CVS and Lymphatic system

5. A type of white blood cell that includes B cells and T cells, central to adaptive immunity.
6. Output The volume of blood the heart pumps in one minute.
8. A long-term medical condition where the force of blood against the artery walls is persistently too high.
10. The most abundant type of white blood cell, typically the first to arrive at a site of infection or injury.
14. A blood group system often identified as positive or negative, critical for safe blood transfusions and pregnancy.
17. A Y-shaped protein produced by plasma cells that is used by the immune system to neutralize pathogens.
18. A plasma protein whose main role is to bind and transport iron through the blood.
19. VII A vitamin K-dependent protein in the blood plasma that plays a key role in the coagulation cascade.
20. A severe, potentially life-threatening allergic reaction.

1. Duct The main lymphatic vessel that drains most of the lymph from the body into the bloodstream.
2. A yellowish pigment produced when red blood cells are broken down; its buildup causes jaundice.
3. The structures in an earthworm (or other invertebrates) that pump blood, resembling a heart.
4. A specialized primary lymphoid organ where T-cells mature, located in the upper chest.
7. Artery The blood vessel that supplies oxygen-rich blood directly to the heart muscle itself.
9. Vena Cava The large vein that carries deoxygenated blood from the upper half of the body back to the right atrium of the heart.
11. A widely used injectable medication that acts as an anticoagulant or blood thinner.
12. Circulation The circulatory system in mammals where blood passes through the heart twice in one complete circuit (pulmonary and systemic).
13. A test that records the electrical activity of the heart using electrodes placed on the skin.
15. The rhythmic throbbing of arteries caused by the contraction of the heart.
16. Valve The bicuspid structure separating the left atrium and the left ventricle in the heart.