Blood pressure numbers explanation?

Top/Bottom. The top number (systolic) can be viewed as how hard the heart pumps blood into the body. The bottom number (diastolic) can be described as the pressure the body pushes back against the heart. Obviously the top number is higher, as the heart pushes harder to get the blood to flow. Both of these numbers are very important.
BP definition. The blood pressure is the resistance to blood flow through the body. The higher number is the resistance when the heart pumps, and the lower number is the resistance when the heart relaxes and fills. High BP can lead to problems with the heart, kidneys, eyes, blood vessels and brain.
Blood pressure. Systolic blood pressure is the top number as the first sounds heard as the blood pressure cuff is deflated. The last sound heard as the cuff is deflated is the diastolic blood pressure.

Related Questions

What is an explanation of the numbers that record blood pressure?

Systolic/diastolic. Blood pressure is expressed as 2 numbers: systolic pressure over diastolic pressure. Systolic pressure, the first ("top") number, is the pressure in the arteries while the heart is actively pumping blood out & is higher. Diastolic pressure, the second ("bottom") number, is generated while the heart is filling, and is lower. Optimal blood pressure for healthy adults is <120 systolic, <80 diastolic. Read more...
Heart and vassels. The systolic blood pressure (the upper one) is recorded when the hearth contracts and pushes the blood out into the vascular space. The diastolic blood pressure (the lower one) is the reflection of the blood vessels tone mostly. The mechanism of the blood pressure control is obviously more complex. Read more...