ANSWERS    PATHOLOGY  LABS  
ANSWERS    PATHOLOGY  LABS  -  J.P. VEINOT
 LAB 1

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1B     The atherosclerotic plaques are located near branches of arteries. Turbulence and changes in hemodynamics at these points.

1C     Rupture, hemorrhage, erosion, thrombus, embolus, stenosis.

1D     Aorta - elastic, renal - muscular, coronary - muscular. All arteries do not react the same way to disease processes.
 

2D     The right coronary artery travels along the right AV groove and is adjacent to the tricuspid valve annulus.

The left coronary artery circumflex branch travels along the left AV groove and is related to the mitral valve annulus.

2E     The adipose tissue holds the coronary artery on the heart surface. ? no known other function

2F     Plaques in the coronary tree occur proximally in the vessels and at branches.

2G     Medications, bypass surgery, atherectomy, stenting, angioplasty, transplant.
 

4B     Congestive heart failure is the main indication.

4C     The heart is excised with an atrial cuff to allow it to be sewn into the recipient.

4D     Microinfarcts may be present. Although these may not be impressive macroscopically the sum of them can cause severe damage 

to function.

4E     The heart has an abnormally connected sympathetic and parasympathetic nervous system and has no lymphatic drainage.

5A     Free wall rupture, 5%.

5B     Two peaks- at one day and day five after infarct

5C     Females (? reason), transmural MI, first MI, hypertension after infarct.

5D     The pathophysiology is cardiac tamponade with decreased inflow of blood into the heart as the right heart is compressed 

by the blood. - shock. Surgical repair and drainage either by needle (pericardiocentesis) or open at surgery..

5E     Congestive heart failure, arrhythmias, depression, free wall rupture, papillary muscle rupture, VSD, deep venous thrombus,

 aneurysms.

6B     Mitral regurgitation/pulmonary edema.

6C     Echocardiography auscultation at physical exam.

6D     Mitral valve replacement.

6E     Congestive heart failure, arrhythmia, papillary muscle rupture, VSD, and aneurysm.