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Where is the motor neuron cell located?
Motor neuron cells are located within the central nervous system (CNS), specifically in the spinal cord and brain. They are responsible for transmitting signals from the brain to muscles and glands to control movements and various bodily functions.
Are spinal nerves primarily sensory or motor in function?
Spinal nerves have both sensory and motor functions. They carry sensory information from the body to the brain and transmit motor signals from the brain to the muscles to control movement.
Where is the motor neuron located?
The motor neuron cells are all in the brain and the spinal cord.
How are the functions of the brain and spinal cord different?
There is upper motor neuron in spinal cord. There is lower motor neuron in the spinal nerve.
How many neurons extend from spinal cord to skeletal muscle Effexor?
The pathway from the spinal cord to skeletal muscle typically involves two main neurons: the upper motor neuron, which originates in the brain and descends through the spinal cord, and the lower motor neuron, which extends from the spinal cord to the skeletal muscle. The lower motor neurons exit the spinal cord through the anterior horn and innervate the muscle fibers directly. Thus, in terms of direct neural connections, there are usually two neurons involved in this motor pathway.
What is the result when a virus destroys the motor neurons in the spinal cord or brain?
It depends on what part of the brain or spinal cord. If it is in the brain it can cause death or complete paralysis, if it is in the spinal cord e.g. Lower part of the spinal cord you are paralysed from the hips down.
What is the spinal cord a extension of?
The spinal cord is an extension of the brain, specifically the brainstem. It serves as a major pathway for communication between the brain and the rest of the body, transmitting sensory and motor signals to and from the brain.
Spinal nerves are purely sensory and motor?
Spinal nerves are mixed nerves, meaning they contain both sensory and motor fibers. Sensory fibers transmit information from the body to the brain, while motor fibers carry signals from the brain to muscles, glands, and other effector organs. This dual function allows spinal nerves to both receive sensory input and initiate motor output.
What is the disease that destroys the motor neurons in the brain or spinal cord?
Poliomyelitis
What are the two pathways by which messages are transmitted?
1 sensory organ - sensory nerves - spinal cord - brain 2 brain - motor nerves - spinal cord - muscles
Where does the spinal cord have gray matter?
The grey matter on a spinal cord is on the spinal roots.
What mediates some reflexes and serves as conduit to and from the brain?
The spinal cord mediates some reflexes and serves as a conduit to and from the brain. It processes reflex actions directly through spinal reflex arcs, allowing for rapid responses without involving the brain for immediate reactions. Additionally, the spinal cord transmits sensory information to the brain and motor commands back to the body, facilitating communication within the central nervous system.
