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Functional cells may also need to be replaced after undergoing apoptosis, which is the programmed death of cells that occurs normally as part of an organism's development. [3] Labile cells continually regenerate by undergoing mitosis and are one of three types of cells that are involved in cell division, classified by their regenerative capacity.
Sensory side effects include paresthesias, dysesthesias, numbness, altered proprioception, and loss of dexterity in fingers and toes. Motor and autonomic symptoms are less frequent but possible. Symptoms may start days after the patient receives their first dose of chemotherapy, are dose dependent, and tend to improve after completion of treatment.
Smooth muscle is grouped into two types: single-unit smooth muscle, also known as visceral smooth muscle, and multiunit smooth muscle. Most smooth muscle is of the single-unit type, and is found in the walls of most internal organs (viscera); and lines blood vessels (except large elastic arteries), the urinary tract , and the digestive tract .
The existing epithelial cells can replicate, and, using the basement membrane as a guide, eventually bring the kidney back to normal. After regeneration is complete, the damage is undetectable, even microscopically. [citation needed] Healing must happen by repair in the case of injury to cells that are unable to regenerate (e.g. neurons).
Vascular smooth muscle cells also play important roles during development, e.g. driving osteocyte differentiation from undifferentiated precursors during osteogenesis. [1] Arteries have a great deal more smooth muscle within their walls than veins, thus their greater wall thickness. This is because they have to carry pumped blood away from the ...
Though after injury mammals can completely regenerate spontaneously, they usually do not completely regenerate. An example of a tissue regenerating completely after an interruption of morphology is the endometrium ; the endometrium after the process of breakdown via the menstruation cycle heals with complete regeneration.