Cardiovascular Flashcards
The area oc the thorax that contains the heart and trachea.
Mediastinum
What is heart murmur often related to?
Periodontal disease
What seperates the left and right ventricles?
Interventricular septum
The impulse for the heart beat originates in the…?
SA Node
Which side of the heart moves blood to the body?
Left side
Vessel cranial to the heart
Axillary artery
What is the thickest layer of the heart?
Myocardium
What is happening to the heart muscle during the “P” phase of the PQRS complex?
The atria are contracting
What is asystole?
When the heart has completely stopped.
Condition in which the muscles of the heart have become thin and weak and now have a lower stroke volume than normal.
Dilated Cardiomyopathy
What are the most easily visible parts of the atria called?
Auricles
Which artery supplies blood to the tail?
Coccygeal
At the hind limbs, the trunk of the aorta divides into right and left______
Iliac arteries.
The 2 factors for cardiac output
Stroke volume and heart rate
What happens during diastole?
The heart relaxes and refills with blood
What happens during Systole?
Heart muscle contracts and blood leaves the atria to the ventricles or from the ventricles to the arteries.
what artery carries deoxygenated blood
pulmonary artery
what vein carries oxygenated blood
pulmonary vein
Where is the tricuspid valve located and what is another name for it?
Between the right atrium and right ventricle, right atrioventricular valve.
Between what two layers of the heart is there a fluid filled space and what is its purpose?
Visceral and parietal layers. The fluid acts as a lubricant to allow smooth expansion and contraction.
In what cardiac cycle does the heart relax and refill with blood to be ejected during the next systolic contraction?
Diastole
What is the difference between Sinus bradycardia and Sinus tachycardia?
Sinus bradycardia Abnormally slow heart rate Normal conductivity Sinus tachycardia Abnormally fast heart rate Normal conductivity
In what cardiac cycle does the heart muscle contract, eject blood from the atria to the ventricles, and then from the ventricles to the arteries?
Systole
What keeps the valve between the atrium and the ventricle from bending back into the atrium
Chordae tendineae
oval opening that alows blood to by pass the fetus’s lungs
Foramen ovale
What is the caudal bend of the heart
The Apex
Instrument that is used to measure electrical activity of the heart
Electrocardiogram
Normal feline Heart Rate
150-210bpm
Normal Canine Heart Rate
70-160 bpm
Where is the mitral valve located and what is another name for it?
Between the left atrium and left ventricle, left atrioventricular valve.
Pulse Deficit
When the heart rate and pluse rate are not the same
Normal Feline Heart Rate
150-210 bpm
The vein most commonly used for venipuncture is the____vein?
Jugular
What 2 factors control cardiac output?
Stroke Volume and Heart Rate
what are the 3 things we can change to manage heart disease?
Pump - strength of the beat, Pipes - constrictict or dilate vessels, Fluid - viscosity
What is the electrical anatomy of the heart?
SA Node, AV Node, Bundle of His, Purkinje Fibers
What does the T wave represent?
relaxing of the ventricle and recharging of the node
What is the outer layer of the heart called?
Pericardium
What is the order of blood flow?
Vena cava
Right Atrium
Tricuspid valve
Right ventricle
Pulmonary valve
Pulmonary artery
Lungs
Pulmonary vein
Left atrium
Mitral valve
left ventricle
aortic valve
aorta
Systemic circulation
The chordae tendineae connect to the _______ muscles
Papillary
What does SA node stand for?
Sinoatrial node
the mitral valve separates what 2 chambers of the heart
left atrium and the left ventricle
