the nervous system ;)
The group of nerves that extend down the back is called the spinal nerves. These nerves originate from the spinal cord and control sensation and movement in different parts of the body.
The cervical spinal nerves form the cervical plexus, the brachial spinal nerves form the brachial plexus, the lumbar and sacral spinal nerves form the lumbosacral plexus, and the sacral spinal nerves form the sacral plexus.
No. The functional unit of the nervous system is the neuron. Neurons group together to form nerves.
nerves
Suffering form nerves usually means you are stressed
This group of nerves innervates the muscles and skin of the entire upper limbs except the Trapezius muscle and the skin near the axilla (arm pit). The plexus comes off the spinal cord at C4,C5,C6,C7,C8 and T1 where they mix and form a plexus. There are 5 main nerves that are formed: Musculocutaneous, axillary, radial, median and ulnar nerves.
The axons of ganglion cells in the retina form the optic nerves.
Enteric
how the hell should I know.
No, the dorsal ramus does not form a plexus. It supplies nerves to the skin and muscles of the back in a segmental pattern without intermingling as in a plexus, which is a network of nerves where fibers from different spinal nerves combine and then redistribute.
They connect via a synapse
Nervous tissue