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Does the oculomotor nerve have motor fibers?
Yes it is motor and parasympathetic.
The parasympathetic motor pathways begin in the areas?
Most parasympathetic motor pathways begin in the dorsal aspect of the medulla, in the dorsal motor nucleus of the vagus nerve. Parasympathetic motor pathways also come from the preganglionic cell bodies located in the lateral horn of the spinal cord in the sacral region (pelvic splanchnic nerves). Thus, the description cranio-sacral is often used to describe the origins of the parasympathetic innervation.
What is the neurotransmitter in a somatic motor pathway?
The neurotransmitter in a somatic motor pathway is acetylcholine. It is released by motor neurons at the neuromuscular junction to stimulate muscle contraction.
Extrapyramidal motor pathway?
cerebellum
What do the neurons of the motor pathway control?
The neurons of the motor pathway control muscle movements by sending signals from the brain to the muscles. These signals coordinate and regulate voluntary movements such as walking, reaching, and grasping.
What is a contralateral pathway?
A contralateral motor pathway is a neutral pathway located at the opposite side of the brain. It is on the eighth nerve of the cochlear nucleus.
What motor pathway is primarily concerned with automatic control of body parts for coordination?
Extrapyramidal pathway
Do both parasympathetic and sympathetic nervous systems operate with a chain of two motor neurons?
True
Is acetylcholine the substance released by the axon terminals of both somatic motor neurons and postganglionic parasympathetic neurons?
Yes, acetylcholine is the substance released by the axon terminals of both somatic motor neurons and postganglionic parasympathetic neurons. In the somatic nervous system, acetylcholine is released at the neuromuscular junction, while in the parasympathetic nervous system, it is released at synapses with target organs.
What is the difference between the vagus nerve and the parasympathetic nerve relating to the respiratory system?
Vagus nerve has a lot of branches. Some of them form a motor supply to the muscle (thru recurrent laryngeal nerve) whereas some form a parasympathetic chain that supply the respiratory system and other system too (ie: Cardiovascular parasympathetic also supplied by the brach of vagus) The branches of the vagus that differ the motor function and the parasympathetic fuction related to the respiratory system.
What are the functions of motor cortex?
Pre central gyrus has got the motor cortex. Through this area you get the initiation of final motor pathway.
What are the two divisions of CNS?
The two divisions of the central nervous system (CNS) are the brain and the spinal cord. The brain is responsible for processing and interpreting sensory information as well as controlling body functions, while the spinal cord mainly serves as a pathway for transmitting signals between the brain and the rest of the body.
