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Sudden onset cauda equina syndrome is regarded as a medical/surgical emergency. [4] Surgical decompression by means of laminectomy or other approaches may be undertaken within 6, [ 18 ] 24 [ 19 ] or 48 hours of symptoms developing if a compressive lesion (e.g., ruptured disc, epidural abscess, tumor or hematoma) is demonstrated.
therm(o)-heat Greek θερμός (thermós) hypothermia, thermoregulation: thorac(i)-, thorac(o)-, thoracico-of or pertaining to the upper chest, chest; the area above the breast and under the neck Latin thōrāx < Greek θώρᾱξ (thṓrāx), chest, cuirass thoracic spine, thorax: thromb(o)-of or relating to a blood clot, clotting of blood
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
Cell biology – also called cytology, is a branch of biology that studies the structure and function of the cell, which is the basic unit of life. [110] Cell biology is concerned with the physiological properties, metabolic processes, signaling pathways , life cycle , chemical composition and interactions of the cell with their environment.
The changes that constitute acquired characteristics can have many manifestations and degrees of visibility, but they all have one thing in common. They change a facet of a living organism's function or structure after birth. For example: The muscles acquired by a bodybuilder through physical training and diet. The loss of a limb due to an injury.
Pathology is the medical discipline that describes conditions typically observed during a disease state, whereas physiology is the biological discipline that describes processes or mechanisms operating within an organism. Pathology describes the abnormal or undesired condition (symptoms of a disease), whereas pathophysiology seeks to explain ...
Biological processes are regulated by many means; examples include the control of gene expression, protein modification or interaction with a protein or substrate molecule. Homeostasis: regulation of the internal environment to maintain a constant state; for example, sweating to reduce temperature
The pygmy mammoth is an example of insular dwarfism, a case of Foster's rule, its unusually small body size an adaptation to the limited resources of its island home.. A biological rule or biological law is a generalized law, principle, or rule of thumb formulated to describe patterns observed in living organisms.