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Melendrez Julia …
Melendrez Julia Cardiovascular Pd.5
anatomy of the heart
cardiac muscle tissue
right atrium
left atrium
right ventricle
left ventricle
epicardium: thin layer of c.t
myocardium: cardiac muscle layer contacts
endocardium: simple squamous epithelium
blood vessels:
arteries: arterioles move away from heart
capillaries:gas exchange takes place
veins: venules moves towards the heart
inner layer: visceral pericardium
outer layer: parietal percardium
between layer: serous fluid
heart murmur: valves don't close completely
endocarditis: bacterial infection of theendocardium
stenosis: stiffening of the heart valve
blood flow
systemic circulation: left atrium and ventricle send blood though body
delivers blood to all body cells and carries away waste
pulmonary circulation: right atrium and ventricle send blood to lungs
eliminates cardo-dioxide and oxygenated blood
major diseases
endocarolitis and myocaratis: inflammation of the heart
cerebrovascular accident: blood flow to a portion of the brain is interupted
peripheral artery disease: arteries narrow and reduce blood flow to extremities
congenital heart disease: issue with heart structure and function present from birth
blood vessels
tunica intima
tunica media
tunica extern
vascular circulatory system : takes blood to tissue and back
arteries: takes blood away from heart
arterioles: between arteries and capillary
capillaries : connects arterioles and venules
capillary beds: consist of two types of vessels
true capillaries: gas exchange by division
veins: return blood toward heat
cardio vascular system
transport of nutrients, oxygen and hormones to cells throughout the body and getting rid of waste
blood types
type A:red blood has only a molecule on its blood
type b: red blood cells only have B
type a/b: red blood has a mixture of both
type O: as neither
disorders
leukemia: production of abnormal white blood cells
thalassemia: bone deformities enlarge
ecgs
electrocardiogram: visible tracing of electrical signs
qrs: complex associated with depolarization of ventricles
p-wave: associated with depolarization of the atria
t-waves: associated with repolarization of the ventricles