1 hibernating myocardium typically represents a chronic process whereas stunned myocardium is typically related to an acute infarction or ischaemic insult resulting in altered wall motion. 2  repetitive stunning may evolve into hibernating myocardium. differentiation from stunned myocardium can be difficult, but can sometimes be made on the basis of maintained, or nearly maintained, perfusion with a wall motion abnormality (hibernating myocardium will have abnormal perfusion and a wall motion abnormality).
The basement membrane is a thin, fibrous, extracellular matrix of tissue that separates the epithelium (skin, respiratory tract, gastrointestinal tract, etc), mesothelium (pleural cavity, peritoneal cavity, pericardial cavity, etc) and endothelium (blood vessels, lymph vessels, etc) from underlying connective tissue.he two layers together are collectively referred to as the basement membrane. The basal lamina layer can further be divided into two layers. The clear layer closer to the epithelium is called the lamina lucida, while the dense layer closer to the connective tissue is called the lamina densa.
Body Tissues and Membranes. A tissue is composed of similarly specialized cells that perform a common function in the body. Epithelial Tissue. Epithelial tissues cover the body surface, line most cavities, and form glands. Functions include protection, absorption, secretion, and filtration. tissue is composed of similarly specialized cells that perform a common function in the body. Epithelial Tissue. Epithelial tissues cover the body surface, line most cavities, and form glands.