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.
What is Angina Pectoris?
Angina is a partially blocked artery caused by fatty deposits forming inside those arteries (atherosclerosis). Partial blockage reduces blood flow to regions of the heart, depriving that part of the heart of required blood and oxygen.
What are some symptoms of angina?
Pain is felt in the chest, shoulders and arm especially on the left side of the body. Pain will subside when exertion stops and body is rested.
What is a thrombosis?
Thrombosis is a blood clot that formed in an unbroken blood vessel.
What is the risk of thrombosis?
If the blood clot moves through the blood vessel it may become trapped in narrowing vessels and cause blockage or occlusion. The extent of the trauma depends on the size of the region denied blood.
