The Circulatory System
Home
The Structures
Blood flow through the heart
Blood flow through upper body
Blood flow through lower body
Relation to other systems
Blood Pressure
Diseases
Interview
Controversy/ Superstitions
Circulatory System Links
Citations
Systolic & Diastolic
systolic(top):
measures pressure in arteries when heart contracts
diastolic(bottom):
measures pressure between heartbeats when heart is refilling
measured in Millimeters of mercury (mm hg)