How is velocity of pressure pulse transmission effected by vascular compliance of each
vessel segment?
Generally, the greater the compliance of each vascular segment, the slower
the velocity (ie slow transmission in the aorta and faster in distal arteries)
What are the important special functions of veins?
-They are capable of stretching or constricting, allowing them to store blood
and make it available if needed
, -Venous pump propels blood forward
-Helps regulate cardiac output
Describe the sounds at points A, B, C, and D of the auscultory method of taking BP
A- silent
B- beginning of tapping/wooshing Kortkoff sounds
C- Muffling and almost quiet of the sounds
D- silent or still muffled
What are the two causes of damping of pressure pulses?
Resistance to blood movement
Compliance of the vessels
What is vascular compliance (capacitance)?
The total quantity of blood that can be stored in a given portion of the
circulation for each mmHg pressure rise
vessel segment?
Generally, the greater the compliance of each vascular segment, the slower
the velocity (ie slow transmission in the aorta and faster in distal arteries)
What are the important special functions of veins?
-They are capable of stretching or constricting, allowing them to store blood
and make it available if needed
, -Venous pump propels blood forward
-Helps regulate cardiac output
Describe the sounds at points A, B, C, and D of the auscultory method of taking BP
A- silent
B- beginning of tapping/wooshing Kortkoff sounds
C- Muffling and almost quiet of the sounds
D- silent or still muffled
What are the two causes of damping of pressure pulses?
Resistance to blood movement
Compliance of the vessels
What is vascular compliance (capacitance)?
The total quantity of blood that can be stored in a given portion of the
circulation for each mmHg pressure rise
