The Blood Vessels Flashcards
(16 cards)
What are blood vessels divided into
Arteries and veins
Arteries and veins are what type of vessels
Three-walled
What are arteries that are thicker than veins capable of
Contraction and expansion
Veins are supplied with valves, which help to regulate what
The direction of blood flow back to the heart
What is the term used for the flow of blood into the tissues
Tissue perfusion
What is the clinical syndrome known as when there is a severe inadequate tissue perfusion
Shock
What is the measure of the force that the blood exerts on the walls of the arteries
Blood pressure which is given as two readings
What is the first reading when measuring blood pressure
Systolic pressure
What is the systolic pressure
The pressure when the heart is contracting
What is the second pressure reading of blood pressure called
Diastolic
What does the diastolic pressure read
The pressure when the heart is at rest
What are blood pressure readings measured in
Millimetres of mercury
What should the average blood pressure read in a normal adult
120/80
What is the reading when someone has high blood pressure (hypertension)
Anything above 140/90
