S1 sound is due to what valves closing?
Atrioventricular valves (AV valves)
S2 sound is due to what valves closing?
How is the AV valves closed?
By ventricular contraction
How is the semi-lunar valves closed?
By ventricular relaxation
An abnormal heart sound
What is another term for back flow in the heart?
Atrial regurgitation can be heard after which sound, S1 or S2?
S1 - atrial regurgitation occurs when an AV valve does not close correctly
Ventricular regurgitation can be heard after which sound, S1 or S2?
S2 - ventricular regurgitation occurs when the semi-lunar valve does not close correctly
What is pulse?
The alternating expansion and recoil within an artery due to ventricular contraction and relaxation
Name three pulse points
Listening to the body sounds with a stethoscope
The technical term for a blood pressure cuff
Normal blood flow is referred as ___________.
The sounds heard when taking someone's blood pressure
Arteriosclerosis will increase systolic or diastolic pressure
Atherosclerosis will increase systolic or diastolic pressure
hardening of an artery
plaque build up inside the artery
Define myocardial infarction
death of cardiac muscle due to lack of oxygen
Stroke - lack of oxygen and death of nerve cells
Cortical Infarction or Cerebral Infarction
List 3 deflections found on an ECG
List 3 electrical events found on an ECG
Atrial depolarization - (p-wave)
Ventricular depolarization - (QRS complex)
Ventricular repolarization - (t-wave)