Anatomy Flashcards
(32 cards)
What is the most anterior portion of the heart?
Right Ventricle
What is the most posterior portion of the heart?
Left Atrium
Left atrial enlargement leads to what symptoms?
Dysphagia and Hoarseness of voice due to recurrent laryngeal nerve
Left atrial enlargement causes?
Thoracic Aortic aneurysm
In TEE- which structure of the heart is the probe closest to?
Left Atrium
Xray Image
stab wounds:
third and fourth intercostal spaces, from the parasternal line to the mid-clavicular line, are most likely to injure ____
Just medial to the mid-clavicular line and further inferiorly (fifth intercostal space)- which ventricle at risk?
Further laterally, past the mediastinal border- which one at risk?
right ventricle
left ventricle
left lung
imaging
imaging- concern for/
saddle embolism
false lumen- Aortic Dissection
Where is the SA node located
Right Atrium opening of SVC
Where is the AV node located
Right atrium interatrial septum (tricuspid valve and coronary sinus)
Where is the bundle of HIS located?
Interventricular Septum Membranous Portion
Ablation site for atrial flutter
cavotricuspid isthmus, a narrow area of tissue below the coronary sinus opening, between the tricuspid valve and the inferior vena cava.
Where is the coronary sinus located
IVC and Tricuspid Valve
Ablation site for atrial fibrillation
Left atrial myocardium
Pulmonary vein ostia within left atrium
What are the two major arteries of the heart?
R coronary and L coronary
Right coronary artery supplies which structures
right side of heart
SA node
Left Coronary artery divides into which?
Left Anterior Descending (2/3 interventricular septum, anteopapillary muscle, antero left ventrciel)
Left Circumflex
Posteriorlateral LA, LV, anterolateral papillary muscle
Which artery has the most likelihood of getting occluded?
LAD
Posterior Descending Artery comes off which artery?
Right Coronary- R dominant
L Coronary- L dominant
Posterior descending artery supplies which structures?
Posterior 1/3 inter-ventricular septum + posteriorlateral papillary muscle
Which artery supplies the AV Node?
Depends on the dominance. If PDA comes off R Coronary- then R coronary
If PDA comes off L Coronary- then L coronary
Most people are ____ dominant?
Right sided dominant (85%)
Right coronary artery is at higher risk for arrthymias- why?
Because of the SA node starting signal
