unit 16 end of unit Flashcards
Located between the left ventricle and the aorta
Aortic Valve
Located between the left atrium and the left ventricle
Mitral valve
largest artery of the systemic circuit
Aorta
Bring(s) oxygenated blood to the left atrium from the lungs
pulmonary veins
layer of the heart composed of cardiac muscle tissue
Myocardium
Bring(s) deoxygenated blood to the lungs
Pulmonary trunk
Located between the right atrium and the right ventricle
Tricuspid valve
Largest vein of the coronary circulation
Coronary sinus
Outer layer of the serous pericardium
parietal pericardium
Fibrous cords that attaches to valves
Chordae tendineae
inner layer of the serous pericardium
visceral pericardium
finger like muscular projections from the ventricles
papillary muscles
The veins of the systemic circuit carry ___________ blood and the veins of the pulmonary circuit carry _____________ blood.
- oxygenated
2. deoxygenated
The pulmonary and aortic valves are known as…
semilunar valves
The right and left coronary arteries are the first branches off the…
aorta
cardiac muscle cells are known as ____________. Adjacent cells are joined together by ________________, which allow the heart to ____________.
- cardiac myocytes
- intercalated discs
- to contract as a unit
Which is the normal pacemaker of the heart?
S.A. node
the purpose of the AV node delay is to …
allows the atria to depolarize and contract before the ventricles and allow the ventricles to fill with blood.
what is ligamentum ateriosum called before birth? BONUS
Ductus Arterious (DA)
- the sinoatrial node generates an action potential that spreads thru the artia.
- there is a delay when the action potential reaches the atrioventricular node.
- the action potential reaches the ventricles via the atrioventricular bundle.
- the bundle branches conduct the action potential thru the interventricular septum.
- the Purkinje fibers conduct the action potential to ventricular myocytes.
the cardiac conduction system.
The S.A. node sinus in fish is called….
venosous (pace maker)
