What is a network of nerves called?
A plexus is a network of nerves that controls a specific region of the body. The body has several major nerve plexuses including the cervical, brachial, lumbar and sacral plexuses.
What is a bundle of spinal nerves called?
cauda equina: A bundle of nerve roots at the base of the spinal column. spinal cord: A thick, whitish cord of nerve tissue which is a major part of the vertebrate central nervous system.
What is a complex network of spinal nerves called?
Complex networks of spinal nerves are termed nerve plexuses. … Spinal nerves are _____ nerves.
What are spinal nerves called?
These are grouped into the corresponding cervical, thoracic, lumbar, sacral and coccygeal regions of the spine. There are eight pairs of cervical nerves, twelve pairs of thoracic nerves, five pairs of lumbar nerves, five pairs of sacral nerves, and one pair of coccygeal nerves.
What are the 31 pairs of spinal nerves?
In humans there are 31 pairs: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, and 1 coccygeal. Each pair connects the spinal cord with a specific region of the body. Near the spinal cord each spinal nerve branches into two roots.
What is the afferent nerve?
Afferent neurons are sensory nerves. These are sensory neurons carrying nerve impulses from sensory stimuli toward the central nervous system and brain. Afferent neurons carry signals to the brain and spinal cord as sensory data.
Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
What is the function of spinal nerves?
Structure and Function
Spinal nerves are mixed nerves that interact directly with the spinal cord to modulate motor and sensory information from the body’s periphery. Each nerve forms from nerve fibers, known as fila radiculara, extending from the posterior (dorsal) and anterior (ventral) roots of the spinal cord.