Acetylcholine
Not all efferent neurons are motor; some can be autonomic (meaning they control involuntary functions). Similarly, not all afferent neurons are sensory; some can be visceral (relaying information from internal organs). CNS neurons can include interneurons that integrate and transmit signals between sensory and motor neurons, but not all CNS neurons are interneurons, as there are also sensory and motor neurons found within the CNS.
Sensory neurons and motor neurons are connected by interneurons in the central nervous system. Interneurons help relay signals from sensory neurons to motor neurons, allowing for the coordination of sensory input and motor output in response to various stimuli.
3 neurons are included in the reflex arc. They are: Afferent neurons (take the message to the spinal cord) (sensory) Association neurons (directs message to the efferent neuron and the brain) (report reflex to the brain) Efferent neurons (takes message to effector) (motor) Not all reflexes have interneurons.
An interneuron is a type of neuron that connects sensory neurons to motor neurons within the central nervous system. It helps process and integrate information received from sensory neurons before transmitting signals to motor neurons for an appropriate response.
Motor neurons are considered efferent neurons, which means they transmit signals from the central nervous system to the muscles or glands to produce a response. They are responsible for initiating and controlling muscle contractions and movements.
Not all efferent neurons are motor; some can be autonomic (meaning they control involuntary functions). Similarly, not all afferent neurons are sensory; some can be visceral (relaying information from internal organs). CNS neurons can include interneurons that integrate and transmit signals between sensory and motor neurons, but not all CNS neurons are interneurons, as there are also sensory and motor neurons found within the CNS.
A somatic system
Motor neurons
Many upper motor neurons synapse with lower motor neurons in the ventral horn of the spinal cord. This is where the cell bodies of lower motor neurons are located, allowing for the direct control of muscle function.
Motor neurons and intern neurons
Sensory neurons and motor neurons are connected by interneurons in the central nervous system. Interneurons help relay signals from sensory neurons to motor neurons, allowing for the coordination of sensory input and motor output in response to various stimuli.
Sensory Neurons
Efferent motor neurons stimulate muscle contractions.
Sensory Neurons
All three types of neurons (sensory neurons, motor neurons, and interneurons) have a cell body, dendrites, and an axon. They are all involved in transmitting signals within the nervous system, with sensory neurons responsible for conveying sensory information to the brain, motor neurons for transmitting signals from the brain to muscles and glands, and interneurons for connecting other neurons within the central nervous system.
3 neurons are included in the reflex arc. They are: Afferent neurons (take the message to the spinal cord) (sensory) Association neurons (directs message to the efferent neuron and the brain) (report reflex to the brain) Efferent neurons (takes message to effector) (motor) Not all reflexes have interneurons.
The motor neuron is the final common pathway for all neurons to travel to complete their synapse. Afferent neurons or unipolar neurons all pass through the cord and brain on this journey.