Blood Pressure Physiology Flashcards
Measure of the force the blood exerts against the blood vessel walls.
Blood Pressure Physiology
ventricles contract, blood is forced into the arteries, and the pressure reaches a maximum value.
SYSTOLIC PRESSURE
ventricles relax, blood pressure in the arteries falls to minimum value.
DIASTOLIC PRESSURE
Standard unit of measurement millimeters of mercury (___)
mmHg
AUSCULTATORY METHOD
-uses a stethoscope.
hearing things in a stethoscope
Auscultation
Pressure at which the first Korotcoff sound is heard is the ___.
systolic pressure.
Pressure at which the last Korotkoff sound is heard is the ___.
diastolic pressure.
Pressure at which the last Korotkoff sound is heard is the ___.
diastolic pressure.
No longer turbulent, the sound ___ completely.
disappears
Resistance to blood flow is related to the diameter of the blood vessel.
Pressure and Resistance
Smaller the diameter of the blood vessel, the greater the resistance to flow; the more rapid decreases in pressure as blood flows through smaller vessels.
Pressure and Resistance
Most rapid decline in blood pressure occurs in the arterioles and capillaries because their small diameters increase the resistance to blood flow.
Pressure and Resistance
Difference between systolic and diastolic pressures.
Pulse Pressure
volume of blood ejected by the heart per beat
Stroke Volume
ability of a blood vessel wall to expand and contract passively with changes in pressure
Vascular Compliance
Pressure wave that results from the ejection of blood from the Left Ventricle into the aorta.
PULSE
this area gives soft pulses.
Axillary artery, Brachial artery, Radial Artery.
To know if a person is dead or alive.
Common carotid artery
- Reduced elasticity and thickening or arterial walls result in hypertension and decreased ability to respond to changes in blood pressure.
- Atherosclerosis is an age-related condition.
- The efficiency of capillary exchange decrease with age.
- Walls of veins thicken in some areas and dilate in others. Thromboses, emboli, varicose veins, and hemorrhoids are age-related conditions.
Effects of Aging on the blood Vessel
In pressure and resistance, The smaller the diameter of the blood vessel, the ____ the resistance flow.
greater
In pressure and resistance, The most rapid decline in blood pressure occurs in the ___ and ___ because their small diameters increase the resistance to blood flow.
arterioles and capillaries
Stroke volume is ___ (directly or indirectly) proportional to Pulse Pressure.
Pulse Pressure
Vascular compliance is ____ proportional to Pulse Pressure
Inversely
