Anatomy

2. Smooth muscles relax and diameter increases
4. Identifying antigens present in RBC plasma membrane
8. contraction of ventricles
9. a blood protein produced in response to and counteracting a specific antigen
12. made up of heart, lungs, blood vessels
14. time delay between atrial and ventricular activation,Delay at AV Node. Second step in atrial muscle contraction.
18. buildup of plaque that causes coronary arteries to narrow, limiting blood flow to the heart.
20. cell that carries oxygen, 40% of blood volume
21. atrial depolorization, first phase of the cardiac cycle. Electrical depolarization of the atria (corresponding to the P wave of the ECG) initiates this phase of atrial muscle contraction.
22. relaxation of ventricles
23. carries blood away from heart
24. clot blood, colorless

1. also called hypertension, blood pressure above 140/90, and is considered severe if the pressure is above 180/120.
3. occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies.
5. surface proteins on the plasma membrane of red blood cells
6. cell that stops infections, fights diseases, contains nucleus
7. 60,000 miles of transportation for your blood
10. the main spike seen in the standard ECG. It is the most obvious part of the ECG, which is clearly visible. It represents the depolarization of ventricles. It shows the beginning of systole and ventricular contraction.
11. no electrical activity,resting membrane potentials
13. occurs when something blocks blood supply to part of the brain or when a blood vessel in the brain bursts. Can feel numbness in half of body
15. The T wave is the positive deflection after each QRS complex. It represents ventricular repolarisation.
16. Transfers oxygen and waste between arteries, veins, and cells
17. Brings blood back to heart
19. When smooth muscles contract to decrease diameter