The somatic nervous system processes sensory information and controls all voluntary muscular systems within the body, with the exception of reflex arcs.
The basic route of nerve signals within the efferent somatic nervous system involves a sequence that begins in the upper cell bodies of motor neurons (upper motor neurons) within the precentral gyrus (which approximates the primary motor cortex). Stimuli from the precentral gyrus are transmitted from upper motor neurons and down the corticospinal tract, via axons to control skeletal (voluntary) muscles. These stimuli are conveyed from upper motor neurons through the ventral horn of the spinal cord, and across synapses to be received by the sensory receptors of alpha motor neuron (large lower motor neurons) of the brainstem and spinal cord.
Upper motor neurons release a neurotransmitter, acetylcholine, from their axon terminal knobs, which are received by nicotinic receptors of the alpha motor neurons. In turn, alpha motor neurons relay the stimuli received down their axons via the ventral root of the spinal cord. These signals then proceed to the neuromuscular junctions of skeletal muscles.
From there, acetylcholine is released from the axon terminal knobs of alpha motor neurons and received by postsynaptic receptors (Nicotinic acetylcholine receptors) of muscles, thereby relaying the stimulus to contract muscle fibers.
the somatic nervous system
Yes.
somatic is voluntary autonomic is involuntary.
The somatic and autonomic nervous systems make up the peripheral nervous system. The main function of this system is to connect the central nervous system to the limbs and organs in the body.
The peripheral nervous system is divided into motor and sensory systems. The peripheral nervous system is also divided into the somatic nervous system and the autonomic nervous system.
I came on this to figure it out!
The peripheral nervous system is divided into the somatic nervous system and the autonomic nervous systems.
I came on this to figure it out!
Spinal nerves , cranial and branches
The somatic nervous system is the voluntary part of the brain and it operates under conscious control. The autonomic nervous system is the part of the brain that is involuntary, and that humans have no control over.
i believe it is the "Somatic" Nervous System. Since the Somatic is Voluntary and all. The Somatic is the part of the Nervous System that is responsible for consciousness movement and action. However, some systems in the Somatic are still involuntary, like reflexes. The Somatic Nervous System is part of the Peripheral Nervous System.
The Nervous system.