10) A 67 years old patient presented with chest pain of six hours duration. He had history of smoking for the last 20 years. Acute mycordial infarction was diagnosed and managed but after 30 minutes of hospital stay the patients developed cardiogenics shock. Despite appropiate management the patient was expired. Which of the the following gross and microscopial changes are expected on autopsy examination?

A, atrophied left ventricle
B, metaplastic change of endothelium
C,no color change with addition of triphenyltetrapolium chloride.
D, Myocardium show dissuse increased homogenous eosinophilia with nuclear fading and fragmentation at microscopic level.
12, which of the following is morphologic pattern be recognized under light microscope
A, cellular swelling
B, Plasma membrane alterations, such as blebbing, blunting , and loss of microvilli
C, Mitochondrial changes, including swelling and the appearance of small amorphous densities
D. Dilation of the ER,with detachment of polysomes; intracytoplasmic myelin figures may be present 

The correct answer for question 10 is D. Myocardium shows diffuse increased homogeneous eosinophilia with nuclear fading and fragmentation at microscopic level. These changes are indicative of myocardial cell death and necrosis, which is expected in a case of acute myocardial infarction.

The correct answer for question 12 is A. Cellular swelling. Cellular swelling is a morphologic pattern that can be recognized under light microscopy and is typically seen in injured or ischemic cells.