Chapter 20 Terms Flashcards
Aortic Stenosis
calcification of aortic valve cusps that restricts forward flow of blood during systole
Aortic Valve
the left semilunar valve separating the left ventricle and the aorta
Apex of the Heart
tip of the heart pointing down toward the fifth left intercostal space
Apical Impulse
point of maximal impulse (PMI); pulsation created as the left ventricle rotates against the chest wall during systole, normally at the fifth left intercostal space in the midclavicular line
Bell (of the stethoscope)
cup-shaped end piece used for soft, low-pitched heart sounds
Bradycardia
slow heart rate, less than 50 beats/min in the adult
Clubbing
bulbous enlargement of distal phalanges of fingers and toes that occurs with chronic cyanotic heart and lung conditions
Cyanosis
dusky-blue mottling of the skin and mucous membranes due to excessive amount of reduced hemoglobin in the blood
Diaphragm (of the stethoscope)
flat end piece of the stethoscope used for hearing relatively high-pitched heart sounds
Diastole
a hearts filling phase
Dyspnea
difficult, laboured breathing
Edema
swelling of the legs or dependent body part due to increased interstitial fluid
Mitral valve
left AV valve separating left atria and ventricle
Palpitation
uncomfortable awareness of rapid or irregular heart rate
Pulmonic valve
right semilunar valve separating the right ventricle and pulmonary artery
