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7 06, 2017

Heart Sounds

By | June 7th, 2017|Anatomy|0 Comments

The 2 sounds are produced by the heart- the first heart sound is produced by the closure of the atrioventricular (tricuspid and mitral) valves and the second heart sound is produced by the closure of semilunar (aortic and pulmonary) valves. [...]

7 06, 2017

Arterial and Nerve Supply layer of Pericardium

By | June 7th, 2017|Anatomy|0 Comments

Arterial Supply The fibrous pericardium and parietal layer of visceral pericardium is supplied by the branches of the following arteries: Internal thoracic artery. Musculophrenic arteries. Descending thoracic aorta. The visceral layer of serous pericardium is supplied by the coronary arteries. [...]

7 06, 2017

Posterior Mediastinum- Anatomy, Boundaries And Content

By | June 7th, 2017|Anatomy|0 Comments

Boundaries Anterior: ( a) pericardium and its contents, (b) bifurcationof the trachea, and (c) pulmonary vessels. Posterior: Bodies of lower 8 thoracic vertebrae andintervening intervertebral discs. Superior: Transverse thoracic plane separating superiormediastinum from the inferior mediastinum. Inferior: Diaphragm. On every [...]

7 06, 2017

Middle Mediastinum- Anatomy, Boundaries And Content

By | June 7th, 2017|Anatomy|0 Comments

Boundaries Anterior: Anterior mediastinum. Posterior: Posterior mediastinum. Superior: Superior mediastinum. Inferior: Diaphragm. Contents 1) Heart. 2) Pericardium. 3) Arteries: Ascending aorta. Pulmonary trunk dividing into 2 pulmonary arteries. Pericardiophrenic arteries. 4) Veins: Superior vena cava (lower half). Azygos vein (terminal [...]

7 06, 2017

Anterior Mediastinum – Anatomy, Boundaries And Content

By | June 7th, 2017|Anatomy|0 Comments

Boundaries Anterior: Body of sternum. Posterior: Pericardium enclosing heart. Superior: Transverse thoracic plane separating superiorand inferior mediastinum. Inferior: Diaphragm. On every side: Mediastinal pleura. Contents 1. Loose areolar tissue. 2. Superior and inferior sternopericardial ligaments stretching between sternum and pericardium. [...]