Cardio.5-Phys Lab

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  1. What and where is the ligamentum arteriosum?
    remnant of the fetal ductus arteriosus,which is a shunt between the aorta and pulmonary trunk
  2. What is the venous return that drains into the right atrium? (3)
    caudal vena cava, cranial vena cava, coronary sinus (drainage of great cardiac vein)
  3. What is the intervenous tubercle?
    ridge in the right atrium b/w the 2 venae cavae that diverts caval blood into the right AV orifice
  4. Where is the fossa ovale?
    caudal to the intervenous tubercle and dorsocranial to the coronary sinus, within the right atrium
  5. Describe the cardiac conduction system.
    sinoatrial node--> AV node--> bundle of His--> left and right bundle branches--> Purkinje cells--> smaller conduction bundles--> moderator bands/false tendons--> ventricular muscles
  6. What and where is the sinoatrial node?
    the pacemaker of the heart- subepicardially at the junction of the cranial vena cava and the right auricle
  7. Where is the AV node?
    subendocardially in the lower potion of the atrial septum, above tricuspid valve and cranial to coronary sinus
  8. Describe where the RV inflow and outflow run.
    starts to the right of the midline, curves like a U around the supraventricular crest, and exits to the left of the midline into the pulmonary artery
  9. Describe the continuity of the right vs. left chambers of the heart.
    • left-¬†cranioventral/septal leaflet of the mitral valve is in anatomic/fibrous continuity with the aortic valve
    • right- tricuspid valve is NOT ¬†in direct anatomic continuity with the pulmonic valve, but is instead separated by the supraventricular crest
  10. When looking at the heart base from a dorsal perspective, from cranial to caudal, the valves are...
    P-A-T-M, with the tricuspid valve to the right of the midline
  11. What is the sinus of Valsalva?
    space behind the aortic valve leaflets from which the coronary arteries originate
  12. What separates the LV inflow from outflow tract?
    the cranioventral/septal leaflet of the mitral valve
  13. Image Upload 1
    • black- left auricle
    • orange- left ventricle
    • pink- right auricle
    • blue- right ventricle
    • yellow- aorta
    • red- pulmonary artery
    • white (on top)- ligamentum arteriosum
  14. Image Upload 2
    • dark green- caudal vena cava
    • yellow- cranial vena cava
    • orange (2)- intervenous tubercle
    • black- fossa ovale
    • blue- tricuspid valve
    • light green- papillary muscle
  15. Image Upload 3
    • blue- right ventricular wall
    • white- supraventricular crest
    • orange- left ventricle
    • black- left atrium
    • green- IVS
    • yellow- aorta
    • red- pulmonary trunk
  16. Image Upload 4
    • white- papillary muscle
    • light pink- mitral valve
    • light green- aortic valve
    • dark green- IVS
    • orange- left ventricle
    • yellow- aorta
    • red- pulmonary trunk
  17. Image Upload 5
    • orange- LV free wall
    • green- IVS
    • blue- RV free wall
    • pink- false tendon
    • white- papillary muscles
  18. Image Upload 6
    • black- left atrium
    • orange- left ventricle
    • green- IVS and papillary muscle
    • pink- papillary muscle
    • blue- right ventricle
  19. Image Upload 7
    • orange- mitral valve
    • blue- tricuspid valve
    • red (upper)- pulmonary trunk/pulmonic valve
    • yellow- left sinus of Valsalva
    • white- non-coronary sinus of Valsalva
    • pink- right coronary artery
    • red (lower)- circumflex br of left coronary a.
    • green- paraconal br of left coronary a.
    • grey- left coronary artery
  20. Image Upload 8
    • red- pulmonary trunk
    • orange- left ventricle
    • blue- right ventricle
    • pink- right atrium
    • white- supraventricular crest
    • green- IVS
  21. Image Upload 9
    • yellow- aorta
    • black- left auricle
    • pink- mitral valve
    • green- IVS
    • blue- left bundle branch separating to false tendons
  22. Image Upload 10
    • red- pulmonary trunk
    • yellow- aorta
    • black- left auricle
    • white- left main coronary a.
    • light blue- bifurcation of left circumflex and paraconal coronary aa.
    • light pink- circumflex coronary a.
  23. Image Upload 11
    • blue + suture- RVOT
    • red- pulmonary trunk
    • green- pulmonary artery
    • light pink- medial wall of ductus arteriosus (cut open)
    • yellow- aorta
    • black- left auricle
    • orange- left ventricle
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Author:
Mawad
ID:
314392
Card Set:
Cardio.5-Phys Lab
Updated:
2016-01-25 14:52:19
Tags:
vetmed cardio
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Description:
vetmed cardio.5
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