The Heart and Mediastinum Picture Cards Flashcards

- SA nodal branch of the right coronary artery
- Right coronary artery
- Right (acute) marginal branch of the right coronary artery
- Anterior interventricular branch of the left coronary artery aka left anterior descending
- Left (obtuse) marginal artery
- Great cardiac vein
- Circumflex branch of the LCA
- Left coronary artery
- Left auricle (cut)


- Great cardiac vein
- Circumflex branch of the left coronary artery
- Left marginal branch
- Coronary sinus
- Middle cardiac vein
- Right marginal branch
- Posterior interventricular branch of the right coronary artery aka posterior descending
- Right coronary artery
- Small cardiac vein
- SA nodal branch of the right coronary artery


Left vagus nerve
What is this finger going through?

The transverse pericardial sinus - a space between the SVC and the aorta/pulmonic trunk.
Name these structures. Note that #1 points to a green thingy inserted into the space. Name the space.

- Transverse pericardial sinus
- Aorta
- Pulmonary trunk

oblique pericardial sinus
What is a thebesian vein?
A vein in the endocardium that allows for seepage of blood into the atrium or ventricle.

Sensory input from what organ will result in referred pain to the circled dermatomes?

Visceral pain from the heart (sympathetic innervation T1-4)
Focus on #4 especially.

- Anterior cusp of tricuspid valve
- Septal papillary muscle
- Septal limb of septomarginal trabecula
- Moderator band
- Anterior papillary muscle

- Right auricle
- Pectinate muscle
- Valve of IVC
- Fossa ovalis


Coronary sinus
Also name which heart chamber this is.

Right atrium
- Crista terminalis
- Pectinate muscles
- Crista terminalis
- Tricuspid valve
- Coronary sinus valve aka thebesian valve
- Valve of IVC
- Limbus & fossa ovalis
- Sinus venarum


Great cardiac vein

Small cardiac vein

Coronary sinus

small cardiac vein

right coronary artery

right marginal artery

SA nodal branch of the RCA

anterior interventricular artery aka left anterior descending

left marginal artery

left circumflex artery

left coronary artery

posterior interventricular artery aka posterior descending
What’s wrong?

pericardial effusion
Ignore the drawing on the left

- Vagus nerve - note that it is posterior to the root of the lung
- Phrenic nerve - anterior to root of the lung
- Sympathetic chain
All these crazy vessels on the pericardium are called the __________ ______.

Pericardiophrenic vessels

SA nodal artery (from RCA)

- Coronary sinus
- Small cardiac vein - it runs alongside the RCA
- Middle cardiac vein - it runs alongside the posterior interventricular artery (branch of the RCA)





- Pectinate muscles
- Opening for the SVC
- Crista terminalis
- Opening for the coronary sinus
- Opening for the tricuspid valve
- Fossa ovalis
