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Flashcards in Heart Deck (42)
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31

Why does pain radiate sometimes during an MI?

Referred pain radiates upper limb (typically left side) along T1 dermatome

32

Where do nn. synapse on the heart?

SA and AV nodes.

33

Where is the projection of the pulmonary semilunar valve?

Left 2nd costosternal junction

34

Where is the projection of the aortic semilunar valve?

Left 3rd costosternal junction

35

Where is the projection of the bicuspid (mitral) valve?

3rd intercostal space, to left of sternum

36

Where is the projection of the tricuspid valve?

Behind sternum at 4th rib

37

Where do you auscultate the pulmonary semilunar valve?

2nd intercostal space, to left of sternum

38

Where do you auscultate the aortic semilunar valve?

2nd intercostal space, to right of sternum

39

Where do you auscultate the mitral valve?

5th intercostal space on the left at the mid-clavicular line
(below left nipple in males)

40

Where do you auscultate the tricuspid valve?

5th intercostal space to the left of sternum

41

56 y/o man develops chest pressure and pain radiating to L arm. 50 pack/year smoker and BMI of 33. Calls 911 and rushed to hospital where he gets cardiac cath, revealing LAD artery is occluded. Which area of heart affect by this?
A. Post portion of L ventricle
B. Anterior interventricular septum and anterior ventricles
C. Left atrium
D. Right atrium
E. Both SA and AV nodes

B. Anterior interventricular septum and anterior ventricles

42

Explain the directional venous drainage in the heart.

What vein runs across the anterior side of the heart, near the aorta and pulmonary trunk?

- Middle cardiac vv. (posterior side) goes superiorly to coronary sinus.
- Great coronary v. (anterior side) goes around left side of heart, back to coronary sinus
- Small coronary v. (on right side) goes posteriorly

- There is none.