Damage to a single spinal nerve will not completely paralyze a limb.
brachial :)
cervical brachial lumbar sacral
what major nerves arise from the coccygeal plexus
The intrinsic nerve plexuses, also known as the enteric nervous system, are primarily located within the walls of the gastrointestinal tract. They are found in two main plexuses: the myenteric plexus, which lies between the longitudinal and circular muscle layers, and the submucosal plexus, located in the submucosa. These plexuses play a crucial role in regulating digestive processes, including motility and secretion.
The two primary nerve plexuses regulating digestive function are the myenteric plexus (Auerbach's plexus) and the submucosal plexus (Meissner's plexus). They are part of the enteric nervous system and play important roles in controlling gastrointestinal motility, secretion, and blood flow.
myenteric plexus and submucous plexus
A plexus is a branching network of axons outside of the central nervous system. The four primary nerve plexuses are the cervical plexus, brachial plexus, lumbar plexus, and the sacral plexus. The choroid plexus is a part of central nervous system in the brain and it consist of capillaries, ventricles and ependymal cells. source of this information : Wikipedia.
The anatomical structure that provides alternative nerves in case a regional nerve is damaged is known as a nerve plexus. Nerve plexuses, such as the brachial and lumbosacral plexuses, are networks of intersecting nerves that allow for the redistribution of nerve fibers. This anatomical arrangement ensures that if one nerve is compromised, other nearby nerves can still innervate the corresponding muscles and skin areas, providing a degree of redundancy and functional resilience.
The reason why a peripheral nerve such as the sciatic nerve can contain nerve fiber from several spinal nerves is owing to nerve plexuses. These are networks of nerves all tangled together and found mostly in the limbs.
The spinal nerve is not a nerve plexus. Nerve plexuses are complex interwoven networks of nerves that form in the peripheral nervous system, whereas spinal nerves are the mixed nerves that emerge from the spinal cord and are not organized in a plexus-like fashion.
The phrenic nerve arises from the spinal cord at C3, C4, and C5 nerve levels. It originates from the cervical plexus and innervates the diaphragm muscle, playing a crucial role in controlling breathing.
short reflexes