1. The right side of the heart pumps deoxygenated blood to the lungs.
2. The left side of the heart pumps oxygenated blood to the body.
3. The pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.
4. The pulmonary vein carries oxygenated blood from the lungs to the left atrium.
5. The aorta carries oxygenated blood from the left ventricle to the systemic circulation.
6. The superior vena cava carries deoxygenated blood from the upper body to the right atrium.
7. The inferior vena cava carries deoxygenated blood from the lower body to the right atrium.
8. The tricuspid valve is located between the right atrium and right ventricle.
9. The mitral (bicuspid) valve is located between the left atrium and left ventricle.
10. The pulmonary valve is located between the right ventricle and the pulmonary artery.
11. The aortic valve is located between the left ventricle and the aorta.
12. The septum is the wall that separates the left and right sides of the heart.
13. The myocardium is the muscular layer of the heart wall.
14. The endocardium is the inner lining of the heart chambers and valves.
15. The pericardium is the double-layered sac that surrounds the heart.
16. The sinoatrial (SA) node is the pacemaker of the heart, initiating the heartbeat.
17. The atrioventricular (AV) node receives the impulse from the SA node and delays it slightly before passing it to the bundle of His.
18. The bundle of His conducts the impulse from the AV node to the Purkinje fibers.
19. The Purkinje fibers distribute the impulse throughout the ventricles, causing them to contract.
20. The cardiac cycle consists of systole (contraction) and diastole (relaxation) phases.
Parent Tip: Review the logic above to help your child master the concept of sheep heart dissection worksheet answers.
