Human Heart Sounds and Blood Pressure Measurement

Heart Sound

Indicates heart function via stethoscope detection.

First Heart Sound

Low-pitched 'lub' from closing atrioventricular valves.

Second Heart Sound

High-pitched 'dub' from closing semilunar valves.

Ventricular Systole

Contraction phase of ventricles, produces systolic pressure.

Ventricular Diastole

Relaxation phase of ventricles, produces diastolic pressure.

Systolic Blood Pressure

Highest pressure during ventricular contraction, 90-140 mmHg.

Diastolic Blood Pressure

Lowest pressure during ventricular relaxation, 60-90 mmHg.

Stethoscope

Device used to listen to heart and pulse sounds.

Brachial Artery

Main artery in the arm for blood pressure measurement.

Sphygmomanometer

Instrument for measuring blood pressure in mmHg.

Pulse Sounds

Sounds indicating blood flow in arteries during heartbeat.

Cardiac Cycle

Sequence of events in one heartbeat, includes systole and diastole.

Atrioventricular Valves

Valves between atria and ventricles, close to create 'lub'.

Semilunar Valves

Valves at the exit of ventricles, close to create 'dub'.

Blood Pressure Reading

Measurement of pressure in arteries during cardiac cycle.

Factors Affecting Blood Pressure

Age, sex, size, activity, and health influence readings.

Procedure for Blood Pressure

Wrap cuff, inflate, listen for pulse changes.

Normal Blood Pressure Range

Systolic: 90-140 mmHg; Diastolic: 60-90 mmHg.

Heart Sound Observation

Listening for distinct sounds to assess heart health.

Patient Comparison

Evaluate heart sounds across multiple individuals.

Exercise Impact on Blood Pressure

Physical activity influences systolic and diastolic values.