Across
- 2. ____________ circuit moves blood between the heart and lungs to pick up oxygen and eliminate carbon dioxide..
- 4. period of relaxation. ____________
- 5. refers to thickening/toughening of arterial walls. _______________
- 7. ability to contract regularly without involvement of nervous or hormonal stimulation. ____________
- 8. the resistance to blood flow out of the heart. __________
- 10. the sac-like structure wrapped around the heart. ___________
- 13. reduced supply of blood flow to heart muscle tissue
- 14. the space in the thorax between the two pleural cavities. __________
- 16. period of contraction. ____________
- 18. the main artery that carries blood away from your heart to the rest of your body. ___________
Down
- 1. recording of the electrical signal from the heart. _____________
- 3. ability to transfer electrical impulses from cell to cell. ___________
- 5. Carry blood away from the heart. _____________
- 6. transform electrical signals into mechanical action. ______________
- 9. ability of a cell to respond to stimulation by rapid changes in membrane potential. _____________
- 11. a build up of plaque (lipid/cholesterol deposits) inside the vessel walls. _________________
- 12. Carry blood to the heart. _____________
- 15. heart muscle. ____________
- 16. ______________ node. The primary site for initiation of the normal heartbeat (sinus rhythm).
- 17. The volume of blood entering the ventricles, and the amount of myocardial stretching that occurs as a result. __________