What is the somatic nervous system do?
The somatic nervous system is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles. The somatic nervous system consists of both afferent (sensory) and efferent (motor) nerves [1].
What is the somatic sensory nervous system?
The somatic nervous system consists of sensory nerves carrying afferent nerve fibers that relay sensation from the body to the central nervous system (CNS). The other nerves in the SNS are motor nerves carrying efferent nerve fibers that relay motor commands from the CNS to stimulate muscle contraction.
What type of neuron is an interneuron?
Interneurons (also called internuncial neurons, relay neurons, association neurons, connector neurons, intermediate neurons or local circuit neurons) are neurons that connect two brain regions, i.e. not direct motor neurons or sensory neurons.
What are the 5 types of sensory neurons?
What are the different types of sensory neuron receptors? You can classify cells based on their morphology, location or by what kind of stimulus they respond to. It is common to group them into 5 classes: mechanoreceptors, thermoreceptors, nociceptors, electromagnetic receptors and chemoreceptors.
What are the 4 somatic senses?
3. Somatic senses (“soma” means body) detect touch, pain pressure, temperature, and tension on the skin and in internal organs. 4. Special senses detect the sensations of taste, smell, hearing, equilibrium, and sight, only in special sense organs in the head region (a phenomenon known as “cephalization”).
How do interneurons work?
Interneurons acts as a “middle-man” between afferent, or sensory, neurons, which receive signals from the peripheral nervous system, and efferent, or motor, neurons, which transmit signals from the brain. It also connects to other interneurons, allowing them to communicate with one another.
What is the function of interneurons in the spinal cord?
A spinal interneuron, found in the spinal cord, relays signals between (afferent) sensory neurons, and (efferent) motor neurons. Different classes of spinal interneurons are involved in the process of sensory-motor integration.
What is an example of a somatic nervous system?
The primary function of the somatic nervous system is to connect the central nervous system to the body’s muscles to control voluntary movements and reflex arcs. For example, imagine that you are out for a jog in the park one brisk winter morning. As you run, you spot a patch of slick ice on the path ahead.
