Cardio system Flashcards
Where is the heart
in the mediastinum between the second rib and fifth rib
is the heart central
no, mostly on the left
Where does the apex point
to the left hip
What is the membrane for the heart
Mesothelium
What is the fluid filled within the two membranous layers
Serous fluid
What is a inflammation of the membrane of the heart
pericarditis
What is the phrenic nerve
primary source of sensory fibers from pericardium
What is a double pump
There being two halves of the heart
Where is the cycle of heart
Starts in the right atrium, then goes to the rught venticle, then to the lung (pulmonary circulation) which oxygenates the blood, then goes into the left atrium then the left ventricle then gsystemic circulates all over the body, then goes back to the right atrium
Which half has bigger muscles of the heart
left
What is the atrium
arrivals station
what is the ventricle
departure station
What veins are oxygenated
pulmonary veins
What is the right atrioventricular valve
It has three cusps, attatched to tendinous chords to prevent backflow to atria
What are the heart strings
chordae tendinae
What does the papillary valves do
push the cycle in the right direction
What are the bicuspate, aortic and pulmonary valves
more valves
What do auricles do
expand the atrium
What are the things that transport blood to and from the lungs
pulmonary arteries/veins
What is the interventricular septum
muscle wall between ventricles
What is the pectinate muscle
for expansion
What is the fossa ovalis
during pregnancy you have the right and left connected, and it closes at birth
What is trabiculae carnae
prevent blood clotting, found in both vesicles
What is the common carotid
neck muscle
What is the sympathetic nervous system
fight/flight
What get given blood first
the heart with the right and left coronary artery and interior interventricular artery
What is a nickname for the AIA
widow artery, if blocked blocks 50% of all blood
What is the coronary sinus
veins for heart
What is the heart
muscular organ that function ad a double pump to control blood floe
What is the sinoartial node
the pacemaker, which generates an impulse which spreads, maes the atrium contracts. This goes to the atrioventricular and then purnjike fibers then goes into the left atrium to contract that
What conducts the heart
AV bundles
What controls the heart rate
Parsympathetic and sympathetic nerves
what is a main parasympatheic nerve for the heart
vagus nerve
