General Flashcards
Which part of the heart does the sinotrial node (SA) cause to contract when it sends out electrical impulses ?
Atria
Which part of the heart does the atrioventricular node (AV) cause to contract when it sends out electrical impulses ?
Ventricles
What is the role of the purkinje fibres in the cardiac conduction system ?
Purkinje fibres allow the heart’s conduction system to create synchronised contractions of its ventricles, and are essential for maintaining a consistent heart rhythm.
Atherogenesis
The formation of fatty deposits in the arteries
Atherothrombosis
condition that occurs when a thrombus forms over an unstable atherosclerotic plaque
Atherosclerosis
refers to the buildup of fats, cholesterol and other substances in and on your artery walls (plaque), which can restrict blood flow
Difference between and occlusive and non-occlusive thrombus
In an occlusive thrombus blood flow is completely cut off, whereas in a non-occlusive thrombus it is only partially cut off
On an ECG would a ST segment in a STEMI be elevated or depressed
Elevated
On an ECG would a ST segment in a NSTEMI be elevated or depressed
Depressed
What is the coronary artery
Artery which provides blood flow to the heart
Difference between a heart attack and cardiac arrest
A heart attack is THE stop of blood flow to the heart, cardiac arrest is when the heart loses function abruptly
Can you have elevated cardiac markers in angina
Yes, but only at a small level compared to a STEMI/NSTEMI
True or False: angina is stable if it is only brought on during moderate activity
True
unstable angina can occur when sedentary
True or false: Hypertension is characterised by as a persistent blood pressure over 140/90 mmhg
True
Is smoking associated with a atherogenic lipid profile? (increased lipid accumulation in the blood)
Yes x
