the cardiovascular system Flashcards
oxygenated pathway heart
pulmonary veins from lungs
-> left atrium
-> goes through mitral valve
-> into left ventricle
-> goes through aortic valve
-> into aorta
-> oxygenated blood to rest of body
deoxygenated pathway heart
SPV (superior vena cava)
-> right atrium
-> goes through tricuspid valve
->into right ventricle
->goes through pulmonary valve
-> into pulmonary artery
->lungs
what are the functions to the heart?
pumping blood
maintaining blood pressure
oxygenation of blood
nutrient delivery
waste removal
electrical conduction
maintaining cardiac output
adaption to physiological demands
valve function
endocrine function
what are common cardiac complications?
1.Hypertension.
2.Coronary Artery
Disease (CAD)
3.Heart Failure:
4.Atrial Fibrillation
(AFib)
5.Valvular Heart
Disease
6.Myocardial
Infarction
7.Peripheral Artery
Disease (PAD)
what is myocardial infarction?
a heart attack
where the supply of blood
to the heart is suddenly blocked, usually by
a blood clot. A lack of blood to the heart
may seriously damage the heart muscle
an MI is a form of acute coronary syndrome (ACS).
what are the 3 main types of acute coronary syndromes(ACS)?
- ST segment elevation myocardial
infarction (STEMI) - Non-ST segment elevation myocardial
infarction (NSTEMI) - Unstable angina
what is a cardiac arrest?
is a sudden state of circulatory failure
due to a loss of cardiac systolic function
what are the symptoms of myocardial infarctation?
chest pain – a feeling of pressure, heaviness,
tightness or squeezing across your chest
* pain in other parts of the body – it can feel as if
the pain is spreading from your chest to your
arms (usually the left arm, but it can affect both
arms), jaw, neck, back and tummy
* feeling lightheaded or dizzy
* sweating
* shortness of breath
* feeling sick (nausea) or being sick (vomiting)
* an overwhelming feeling of anxiety
coughing or wheezing
what other info would you need to gather in response to a suspected MI?
vital observations
blood tests
ECG
family history
what is troponin?
a protein that is released when damage to the myocardium occurs, troponin levels may take 12 hours to peak
found in blood tests.
what does the cardiovascular system consist of and what is the primary function?
the heart and blood vessels
transporting oxygen and nutrients to body tissues
what is the purpose of valves in the heart?
to prevent backflow of blood
what is congenital heart disease?
an issue with your hearts structure that is present at birth
signs and symptoms of CHD
rapid heartbeat
rapid breathing
swelling of the legs, tummy or around the eyes
extreme tiredness and fatigue
a blue tinge to the skin or lips (cyanosis)
tiredness and rapid breathing when a baby is feeding
Types of congenital heart disease
septal defects
coarctation of the aorta
pulmonary valve stenosis
transposition of the great arteries
underdeveloped heart