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.
One advantage to having plexuses is that damage to a single spinal nerve will not completely paralyze a limb.
Median Nerve belongs to Brachial Plexus.
The lumbar plexus
Cervical: C1 - C5Innervates muscles of neck and extend into thoracic cavity, where they control diaphragmatic muscles. Major nerve: Phrenic...which provides entire nerve supply to diaphragm.Brachial: C5-T1Innervates pectoral girdle and upper limbs. Major nerves: Radial nerve, median nerve, ulnar nerve.Lumbar: T12 - L4Innervates pelvic girdle and lower limbs. Major nerves: Genitofemoral nerve, lateral femoral cutaneous nerve, and femoral nerve.Sacral: L4-S5Innervates pelvic girdle and lower limbs. Major nerves: Sciatic nerve (which branches into tibial and fibular nerves) and pudendal nerve.
The nerve that control the larynx during breathing is the Vagus Nerve.
No. The sciatic nerve comes from the sacral plexus in the lower limb.
Cervical plexus....
Median Nerve belongs to Brachial Plexus.
The lumbar plexus
sacral plexus
Submucosal nerve plexus and myenteric nerve plexus
The largest branch of the sacral plexus is the sciatic nerve, the thickest and longest nerve in the body.
Cervical: C1 - C5Innervates muscles of neck and extend into thoracic cavity, where they control diaphragmatic muscles. Major nerve: Phrenic...which provides entire nerve supply to diaphragm.Brachial: C5-T1Innervates pectoral girdle and upper limbs. Major nerves: Radial nerve, median nerve, ulnar nerve.Lumbar: T12 - L4Innervates pelvic girdle and lower limbs. Major nerves: Genitofemoral nerve, lateral femoral cutaneous nerve, and femoral nerve.Sacral: L4-S5Innervates pelvic girdle and lower limbs. Major nerves: Sciatic nerve (which branches into tibial and fibular nerves) and pudendal nerve.
The nerve that control the larynx during breathing is the Vagus Nerve.
Branchial plexus
The lumbosacral plexus.
No. The sciatic nerve comes from the sacral plexus in the lower limb.
It is the Cervical Plexus