Random Unit 6 (2) Flashcards
Known as visceral pericardium, Outermost layer of the heart
Epicardium
Secretes serous fluid preventing friction as the heart beat
Epicardium
Middle layer of the heart, Composed of cardiac muscle
Myocardium
Contracts to propel blood into the next heart chamber or out into the blood vessels of the body
Myocardium
Innermost layer of the heart
Endocardium
Protective lining of the heart chambers and valves of the heart
Endocardium
Deoxygenated blood returns to the
Right atrium and flows into the Right ventricle and is then pumped to the Respiratory system
Oxygenated blood leaves
The Lungs to flow into the Left atrium moves into the Left ventricle and then is pumped to aLL parts of the body
Frequency of the cardiac cycle and is expressed in beats per minute
Heart Rate
Amount of blood pumped out of the heart in 1 minute and is determined by heart rate (HR) and stroke volume (SV).
Cardiac Output (CO)
CO =
HR × SV
Which blood vessel returns oxygenated blood to the heart
Pulmonary Vein
Venous blood returning from the body enters which chamber of the heart first
Right Atrium
Nose, Nasal Cavity, Sinuses, and Pharynx
Upper Respiratory Tract
Larynx, where the vocal cords are located, the trachea, and the branches of the respiratory tree. The trachea branches into the right and left main bronchi. The bronchi divide repeatedly into smaller bronchioles and alveolar ducts. The bronchioles and ducts terminate in the alveoli.
Lower Respiratory Tract