| What type of pump is the heart? | The heart is a muscular double pump |
| What are two circuits pertaining around the heart? | - Pulmonary circuit
- Systemic circuit |
| Define the Pulmonary circuit | The pulmonary circuit is the process where the right side of the heart receives oxygen poor blood from the body and pumps blood into the lungs |
| Define the Systemic circuit | The systemic circuit is the process where the left side of the heart receives oxygenated blood from the lungs and pumps it throughout the body |
| Function of the Atria | The atria receives blood from the pulmonary and systemic circuits
- there is a right and left atria |
| Function of the ventricles | the pumping chambers of the heart |
| what are the four sections of the heart? | Superior right
Inferior right
Superior Left
Inferior left |
| Describe the superior right portion of the heart | Is the Atrial right chamber
- located at the costal cartilage of the 3rd rib and sternum |
| Describe the Inferior right portion of the heart | Is the inferior right ventricle
- located at the costal cartilage of the 6th rib lateral to the sternum |
| Describe the superior left portion of the heart | is the Superior left Atria
- located at the costal cartilage of 2nd rib lateral to the sternum |
| Describe the inferior left portion of the heart | is the inferior left ventricle
- lies in the 5th intercostal space at the midclavicular line |
| What covers the heart? | Pericardium |
| What are the two types of pericardium surrounding the heart | Fibrous pericardium
Serous Pericardium |
| Define Fibrous pericardium | - strong layer of dense connective tissue |
| Define Serous Pericardium | The serous pericardium is formed from 2 layers
- pariteral layer
- visceral layer |
| What are labeled as the superior chambers? | Right and Left atria |
| What are labeled as the Inferior chambers? | Right and Left ventricles |
| What divides the sections of the heart? | -interventricular septa
- interatrial septa |
| What veins bring oxygen rich blood to the heart? | the pulmonary veins |
| Function of Right Atrium | The right atrium receives oxygen poor blood from systemic circuit through the superior vena cava, inferior vena cava, and the coronary sinus |
| Function of Right Ventricle | The right ventricle receives blood from the right atrium through the tricuspid valve and pumps blood into the pulmonary circuit through the pulmonary trunk |
| What portion of the heart is the most muscular? | Left ventricle |
| Function of the Left Ventricle | Pumps blood through system circuit via the aortic valve |
| Name the internal walls of the left ventricle | -trabeculae carneae
-papillary muscles
-chordae tendineae |
| Function of the valves? | Prevent backflow of blood
- increase efficiency |
| Describe walls of the Atria | Atria contain thin walls |
| Describe walls of the Ventricles | Ventricles contain thick walls |
| What are the differences of the systemic circuit compared to the pulmonary circuit? | the systemic circuit is longer and offers greater resistance to blood flow |
| Name this structure | Superior Vena Cava |
| Name this structure | Aorta |
| Name this structure | Pulmonary Artery |
| Name this structure | Pulmonary Vein |
| Name this structure | Right Atrium |
| Name this structure | Left Atrium |
| Name this structure | Inferior Vena Cava |
| Name this structure | Pulmonary Valve |
| Name this structure | Tricuspid Valve |
| Name this structure | Right Ventricle |
| Name this structure | Left Ventricle |
| Name this structure | Aortic valve |
| Name this structure | Mitral Valve |
| Name this structure | Superior Vena Cava |
| Name this structure | Pericardium |
| Name this structure | Parietal Pleura |
| Where is the heart located? | in the mediastinum specifically the middle mediastinum |
| Name this structure | Membranous part of interventricular septum |
| Name this structure | Muscular part of interventricular septum |
| Name this structure | Fibrous pericardium |
| Name this structure | Parietal pericardium |
| Name this structure | Pericardial Cavity |
| Name this structure | Visceral Pericardium (epicardium) |
