The Heart Flashcards
What is the blood circulation order?
Lungs - Heart (L) - Body - Heart (R) - Lungs
What is a ECG and what does it do?
An ECG is an electrocardiograph, it gives the doctor an indication of any abnormal activity of the heart.
What benefit does the ‘stress’ or ‘exercise’ ECG provide?
Heart activity underload gives a better indication of any artery blockage.
Blood pressure definition.
Blood pressure is the force exerted against the inside walls of the blood vessels.
During heart contractions and relaxations. When is their higher blood pressure and when is their lower blood pressure?
Higher blood pressure occurs the contraction phase (systolic) and lower blood pressure during the relaxation phase (diastolic).
What unit is blood pressure measured?
Pressure is measured in mm Hg (millimetres of mercury).
What is the blood pressure of a typical healthy person?
120/70 (120 Systolic / 70 Diastolic)
In other words hypertension is?
High blood pressure.
What is hypotension?
Low blood pressure.
What are symptoms of hypertension?
Generally no symptoms but if left untreated can lead to stroke.
Untreated hypertension can cause?
Kidney damage, eye damage, and enlargement of the heart.
What is a possible cause of hypertension?
An increase in stress can cause an increase in blood pressure.
What is a coronary artery?
Coronary artery is a heart artery that supplies the heart with blood.
What is the #1 risk factor of heart disease?
Family history.
What are some heart diseases?
Coronary heart disease (CAD) such as Angina Pectoris.