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Download Anatomy and Physiology of the Heart: Pericardium, Layers, Fluid, Valves, and Cardiac Cycle and more Quizzes Physiology in PDF only on Docsity!
Description
Organ responsible for the force required to pump-circulate
the blood though the blood stream.Size- fistlocated-thoracic
cavity, between lungspoints to the left hiplies at the 5th
intercostal spaceapical pulse, pulse rate at the heart
TERM 2
Covering and wall of the heart
DEFINITION 2
Pericardium, double layered sack
TERM 3
Parietal pericardium
DEFINITION 3
outer layer
TERM 4
Visceral pericardium
DEFINITION 4
inner layer
TERM 5
Serous Fluid
DEFINITION 5
lubrication and shock absorption
Pericarditis
Pericarditis is an inflammation of the pericardium. A
characteristic chest pain is often present.
TERM 7
Three Layers of the heart wall
DEFINITION 7
Epicardium- outter layerMyocardium- middle , muscle
thickest layerEndocardium- inner layer, continues with the
layers of the blood vessels
TERM 8
Heart flow
DEFINITION 8
Know the flow
TERM 9
Valve Problems
DEFINITION 9
Incompetent valves- do not close completelyValvular
stenosis- stiffened and close slowlyProlapsed- does not close
tightly.. usually the bicuspid turns inside out.
TERM 10
Nodal system/intrinsic
conduction
DEFINITION 10
it lies directly in the cardiac tissue and keeps the heart
beatingSinoatrial Node; SA the pace makers, located on the
superior portion of the atria, top down conductoinAtrioventricular
(AV) bundle also called the bundle of HIS - runs down the septum
and is insulated so it does not contract the muscles it
passesPurkinge fibers located at the bottom of the heart, and
contract from the bottom up, forcing blood up and out.,
3 stages in a cardiac cycle
mid to late diastole- heart is relaxing atria are fillingVentricular
Systole- ventricals are contracting, pressure increases, AV valves
close and similunar valves openduring this time atria are relaxing
and fillingthis stage ends when the ventricals relax and similunar
closeearly diastole- ventricals relax and pressure drops, av valves
are closed for a moment, when the pressure in the vetricals is
lower than atria the venticals fill with blood
TERM 17
Lub Sound
DEFINITION 17
AV snapping shut
TERM 18
Dub sound
DEFINITION 18
Similunar valves snapping shut
TERM 19
Murmmurs
DEFINITION 19
When blood is going over an obstical
TERM 20
Cardiac Output
DEFINITION 20
total volume of blood being pushed out by the heart = SVSV
= stroke volumeCO = SV X HR
