CARDIOVASCULAR
Intrinsic Factors: -The rate of blood flow each organ and tissue right amount to provide function
-Also known as auto regulation
-Uses paracrines or properties of muscle tissue
-Are independent of control by nerves or hormones
-Blood flow is modified diameters local arterioles feeding capillaries
Blood Flow:
-The blood comes through the superior and inferior vena canvas
-Goes into the right atrium
-Down passing the tricuspid
-Going to the right ventricle
-Goes up pulmonary valve
-Goes out through and out the pulmonary artery
-Gets oxygenated and returns through pulmonary veins
-Goes into the left atrium
-Goes down the passing the bicuspid valve or the mitrale valve
-Goes down the left ventricle
-Goes up passing the semi lunar valves
- Out through the Aorta
-Finally goes through out the body and happens again
Anatomy of Heart
Aorta has the brachiocephalic , carotid atery, and the subclavin artery
Next to the left atrium is the left pulmonary veins and next to the right atrium is the right pulmonary veins
In the arteries on the heart the blue are the veins and the red is the arteries
Heart muscle is also is called chlordane tendinea
Mediastrium encloses heart and it is double walled sac called pericardium. The fibrous pericardium protects heart anchors it to surrounding structures and prevents overfilling of blood in heart
The myocardium is thicker on the left ventricle tan the right ventricle
Right Side of the Heart: Receives oxygen as poor blood from body tissue then pumps this blood to lungs to pick up oxygen and dispel carbon dioxide called the pulmonary circuit
Left Side of the Heart- takes the oxygenated blood returning from the lungs and pumps it to the body this is called systematic
ventricular septum is in the heart when it is cut separates the right and left ventricle
Chambers
2 Receiving Chambers: -Right atrium receives blood returning from systematic circuit
-Left atrium receives blood returning from pulmonary
2 Pumping Chambers: -Right ventricle pumps blood into pulmonary
-Left ventricle pumps blood into systematic
Layers of the Heart
2)Myocardium(Middle)- cardiac muscle bulks the heart, contracts
3)Endocardium-glistening white sheer lines heart chambers and covers the fibrous skeleton valves
1)Epicardium- has fat
-Arteries go out the heart and veins are towards the heart
-Poorly oxygenated which are the right atrium and ventricle
-Highly oxygenated which are left atrium and ventricle
-Blood vessel poorly oxygenated are pulmonary artery
-Blood vessel highly oxygenated are aorta channels
-Myocardial Infarction: Blood flow to part of the heart is blocked (heart attack)
-Peripheral Artery Disease: Arteries narrow and reduce blood flow to extremities
-Cerebrovascular Accident (stroke): Blood flow to a portion of the brain is interrupted
-Endocarditis Endocarditis: Inflammation of the heart
-Congenial Heart Disease: Issue with heart structure and or function present from birth