The brain stem is a bundle of nerve tissue at the base of the brain. It connects the cerebrum and cerebellum to the spinal cord. The brain stem has 3 areas: midbrain (also called the mesencephalon)
The spinal cord is a bundle of nerves that links the peripheral nervous system to the brain
The Spinal Cord is the thick column of nerve tissue that links the brain to most of the nerves.
Links That Stimulates sensory nerves to motor nerves
Nerves, nerve cells and dendrites. The spinal cord connects directly to the brain, using electric signals to control different parts of the body as they travel down the spinal cord and throughout the body.
ASSOCIATION NERVES links the sensory to the motor nerves
your spine and skeletal system sends messages that you are in pain when your bones break. your eyes send messages about what you are seeing your fingers, arms, and every other part of your body responds to what you are touching and also sends messages to your brain to stimulate responses in whether it is a good or bad pain.
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The Nervous System
The cerebellum and pons are connected by the middle cerebellar peduncle, which is a large bundle of nerve fibers that carries information between these two structures. This connection allows for communication and coordination between the cerebellum and other areas of the brain involved in motor control and coordination.
Tip links connect the stereocilia in a hair bundle. They are thin filaments that link the tip of one stereocilium to the side of an adjacent taller stereocilium. Tip links are believed to play a crucial role in mechanotransduction, the process by which mechanical signals are converted into electrical signals in the ear.
Yes it is, look here (you might have to buy the bundle though.) (link moved to related links)
by the brain and the organs