Midterm Review Flashcards
The force exerted by circulating blood on the walls of blood vessels
Blood Pressure
Blood pressure when the heart (ventricles) contract. The first # recorded
Systolic
When the heart is in a period of relaxation and dilatation (expansion). Second # recorded
Diastolic Pressure
Amount of blood ejected into the aorta
Stroke Volume
Number of heart beats per minute (60-100)
Heart Rate
Resistance factors in circulatory system that affect the ease of BF (tone in blood vessels and viscosity of blood)
Peripheral Resistance
Pressure is difference between the systolic and diastolic pressures. Palpated as rhythmical throbbing over an artery, normally assessed at wrist or neck
Pulse
Receptors within BV walls that sense pressure changes (Carotid Sinus)
Baroreceptor
Monitor the concentration of O2, CO2 and H in the blood (Located in carotid sinus of heart) - Influence breathing rate
Chemoreceptor
Elevation of blood pressure above normal for prolonged period
Hypertension
Silent, long term condition that is not associated with underlying condition/disease, through associated with risk factors (silent killer)
Primary Hypertension
Occurs secondary to another condition (kidney disease, vascular)
Secondary Hypertension
Hearts inability to pump sufficient blood supply to the body’s needs
Congestive Heart Failure
Decrease in systolic/diastolic BP below normal (95/60). There are many different reasons for hypotension but some of the more severe cases include myocardial infarction, shock, hemorrhage, allergy
Hypotension
Excessive fall in BP on assuming an upright position. This is not a disease but manifestation of abnormal BP regulation due to variety of causes
Orthostatic Postural Hypotension
Distended, dilated abnormally large, elongated bulging veins leading to venous insufficiency
Varicose Veins
Inflammation of superficial or deep veins that leads to the formation of thrombus
Thrombophlebitis