PATHOLOGY MCQ
CELL DAMAGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Incapable of regeneration in post natal life e.g neurons, cardiac muscle
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Constantly renewed .g stratified squamous epithelium of skin
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Incapable of regeneration in post natal life e.g neurons, cardiac muscle
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None of the above
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Detailed explanation-1: -Permanent cells are defined as cells that are unable to replicate in postnatal life. Nervous cells, also termed neurons, together with skeletal muscle and cardiac cells, are included in this group, which traditionally identifies the human tissues that are incapable of spontaneous regeneration.
Detailed explanation-2: -Permanent cells are cells that are incapable of regeneration. These cells are considered to be terminally differentiated and non-proliferative in postnatal life. This includes neurons, heart cells, skeletal muscle cells and red blood cells.
Detailed explanation-3: -when necessary, and (3) the permanent cells, incapable of multiplication in the adult-only the permanent cells are incapable of regeneration. These are the brain cells and the cells of the skeletal and heart muscles.
Detailed explanation-4: -The central nervous system and the cardiac and skeletal muscles are permanent tissues that do not divide in postnatal life. Due to the inability in proliferation, injury to such tissue results in a scar formation and a permanent loss of function.
Detailed explanation-5: -There are four main types of complex permanent tissue: epithelial, connective, muscular, and nervous tissue. Epithelial tissue is composed of cells that line the surfaces of organs and body cavities.