heart and great vessels Flashcards
pericardium: describe the arrangement of the fibrous and serous layers of the pericardium and relate it to conditions such as cardiac tamponade and pericarditis
what is the pericardium within the middle of the mediastinum
fibroserous sac surrounding heart and its great vessels
what 2 layers does the pericardium consist of
fibrous and serous
what 2 parts does the serous section consist of
parieral and visceral
what does the parietal section line
fibrous
what does the visceral section adhere to
heart
define cardiac tamponade
clinical syndrome caused by the accumulation of fluid in the pericardial space, resulting in reduced ventricular filling and subsequent haemodynamic compromise
define pericarditis
inflammation of the serous pericardium of the heart, resulting in an accumulation of fluid in the pericardial cavity, affecting the pattern of beating in the heart
diagram of pericardium
what are the two pericardial sinuses - important clinically to limit outflow of heart
transverse and oblique (where serous visceral reflects back on itself to become parietal layer)
what does the transverse pericardial sinus do
separates arteries from veins
what is the oblique pericardial sinus formed by
reflection onto pulmonary veins of heart
stages of pericardial sinuses formation - from vertical to bending in 2
primordial heart tube in pericardial sac → primordial tansverse pericardial sinus → heart loops ventrally → primordial arterial and venous ends of the developing heart brough together, forming transverse pericardial sinus; veins expand and pericardial reflection carried out around them to form oblique pericardial sinus
