PERICARDIUM Flashcards
fx of pericardium
fixes the heart (limit motion cs attach to diaphragm, sternum and tunica adventitia)
prevents overfilling
lubrication reduces friction
protect from infection
what fibrous pericardium does
prevents rapid overfilling of the heart due to its tough CT abd nnon distensible
serous pericardium layers
outer parietal layer (lines internal fibrous pericardium) visceral layer (form epicardium)
pericardial cavity fx
lubricate and minimize friction by the heart contraction
Fat
Polis
Skinny
Villains
Fibrous layer of pericardium
Parietal layer of serous pericardium
Serous fluid
Visceral layer of serous pericardium
pericardial sinuses
transverse
oblique
transverse sinus
posterior to aorta an dpulmonary trunk
anterior to svc
used to identify great vessels to ligate arterios of heart during CAB grafting
oblique sinus
part of svc ivc and pulmonary veins covered by serous pericardium
permits distension of left atrium during return of oxygenated blood from the lungs
nerve supplies
roots c3-c5 cause refered pain to the ipsilateral supraclavicular region
vagus nerves
symphatatic nerve vasomotor
pericardiophrenic artery
branch of internal throacic artery accompanies the phrenic nerves to diaphragm
pericardiacophrenic veins
from braciocephalic or internal throacic veins
what is pericardial effusion
is a condition where there is an accumulation of fluid within pericardial cavity , it >pressure chambers compressed and
what is pericarditis
inflammation of pericardium due to bacterial infection, myocardial infarction.
symptoms of pericarditis
chest pain tht can lead to acute cardiac tamponade
what is cardiac tamponade
heart ventricles unable to pump enough bloo to the body lead to organ failure, shock and death
