Flashcards in Anatomy Deck (102)
where is the heart situated?
middle mediastinum in the pericardial sac
the fibrous pericardium is lined internally by what?
parietal serous pericardium
the pericardial cavity is between what two serous layer?
parietal pericardium (on the internal side of the fibrous pericardium) and the epicardium.
the epicardium secretes what?
pericardial fluid lubricant
what is it called when the pericardial cavity fills with blood?
what is it called when there is pressure around the heart preventing cardiac contraction? (ie during a haemopericardium)
what is the name of the process where you drain fluid from the pericardial cavity?
what is the space within the pericardial cavity, that lies posterior to the ascending aorta and the pulmonary trunk?
transverse pericardial sinus
usually, where is the apex of the heart?
5th left intercostal space in the midclavicular line
what is it called when the apex beat is shifted to the left?
the right coronary artery is located where?
in the coronary groove
(indicates tricuspid valve)
the LAD branch of the left coronary artery is located where?
the anterior interventricular groove (indicates septal between ventricles)
what is located in the posterior atrioventricular groove?
what is the coronary sinus?
a short venous conduit which receives deoxygenated blood from the cardiac veins
what is located in the posterior interventricular groove?
posterior interventricular artery of the right coronary artery
what takes up the majority of the base of the heart?
what lies in the left atrioventricular groove?
left main stem coronary artery?
where do the coronary arteries arise from?
right and left aortic sinuses
Coronary arteries are embedded within what type of tissue?
adipose tissue, just deep to the epicardium
what is the name of the structure which divies the heart into a right and a left side?
what name is given to the condition where there is a hole in the interatrial septum?
atrial septal defect
what name is given to the condition where there is a hole in the interventricular septum?
ventricular septal defect
what is the life-threatening problem that can occur due to a septal defect?
mixing of arterial and venous blood
how does the heart muscle pump ensure unidirectional flow?
the 4 cardiac valves- one valve at exit from the cardiac chamber
what carries the fibres of the right bundle branch to the papillary muscle of the anterior cusp of the tricuspid?
incompetent valves are leaky and cause?
valves that are too tight are known as?
what is the thoracic inlet bounded by?
rib 1, T1 and the jugular notch
what plane is between the sternal angle and T4/5?
transverse thoracic plane