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HEART-RIGHT VENTRICLE

Anatomy-Thorax

HEART-RIGHT VENTRICLE

RELATIONS
1. Forms most of the sternocostal surface of the heart.

WALLS
2. The walls are thrown into muscular ridges - trabeculae carnae. 3 walls - anterior, septal, inferior.
3. The moderator band (septomarginal trabecula) lies b/w interventricular septum + papillary muscle. Transmits right branch of conducting bundle.
4. Other bundles form papillary muscles attached to TV cusps.

ENTRY-TRICUSPID VALVE
5. TV cusps - anterior, posterior (lies against the inferior wall) , septal. Attached to papillary muscles via the chordae tendenae.

EXIT-INFUNDIBULUM
6. The ventricle continues upwards into a narrow, smooth infundibulum of the pulmonary orifice.
7. The fibrous ring at the top of the infundibulum gives attachment to the pulmonary valve with 3 cusps - left, right, anterior.


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REFERENCES

1. Mcminn. (2003). Last's Anatomy. Elsevier Australia. ISBN:0729537528. Read it at Google Books - Find it at Amazon
2. Netter, F. H. (2019). Atlas of human anatomy. Philadelphia, PA: Elsevier.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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