NURS 3311 Quiz: Health Assessment Exam 3
Document Summary
Cardiovascular system : consists of a muscular pump (heart) and vessels: pulmonary circulation : arteries contain deoxygenated blood, vessels contain oxygenated blood, systemic circulation: arteries contain oxygenated blood, vessels contain deoxygenated blood. Heart structures: four chambers of the heart: La: left atrium: four valves of the heart: 2 av valves, they separate the atria and the ventricles. The right av valve is called the tricuspid valve. The left av valve is called the bicuspid valve or mitral valve. Av valves open when the heart is being filled with blood (diastole) During pumping phase the av valves close to prevent blood from re- entering back into the atria. Chordae tendineae - collagenous fibers that anchor the valves thin leaflets to papillary muscles embedded in the ventricle floor. 2 sl valves, they separate the ventricles and arteries. The right sl is the pulmonic valve. The left sl is the aortic valve.
