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Which neuron has its cell body inside the spinal cord?
cell body
Which part of a reflex arc would have a cell body in the posterior root ganglion?
The sensory (afferent) neuron has a cell body located in the posterior root ganglion of the spinal nerve. This neuron carries sensory information from the peripheral receptors to the central nervous system.
How does effector relate to reflex arc?
An effector is a part of the body (such as a muscle or gland) that carries out the response in a reflex arc. In a reflex arc, when a stimulus is detected by a sensory receptor, a message is sent via a sensory neuron to the spinal cord, where it is processed, and then a message is sent via a motor neuron to the effector causing a response.
What is the withdraw reflex?
a spinal reflex intended to protect the body from damaging stimuli.
What Acts as a reflex center of the body?
the spinal cord
What are the structures and functions of a reflex arc?
A reflex is a rapid, involuntary response to a stimulus such as a hot stove.The reflex arc is the pathway traveled by the nerve impulses during a reflex. Most reflexes are pathways that traverse only the spinal cord.During a spinal reflex, information may be transmitted to the brain, but it is the spinal cord that is responsible. They can happen faster than you can think about it.A reflex arc involves the following components:The receptor is the part of the neuron (usually a dendrite) that detects a stimulus (burn).The sensory neuron transmits the impulse to the spinal cord.The integration center involves one, two or more synapses in the gray matter of the spinal cord.A motor neuron transmits a nerve impulse from the spinal cord to a peripheral region.An effector is a muscle or gland that receives the impulse form the motor neuron (remove the hand). In somatic reflexes, the effector is skeletal muscle. In autonomic reflexes, the effector is smooth or cardiac muscle, or a gland.
What are nerve pathways that produce responses without involving the brain?
Reflex arcs are nerve pathways that produce responses without involving the brain. These reflex actions are quickly generated in response to a stimulus and help protect the body from harm or injury. The signal travels from the sensory neuron to the spinal cord and back out through the motor neuron to produce a rapid response.
What is the basis for the functional classification of neurons?
Functionally, neurons or nerve cells are classified into three types,1. Sensory or afferent neuron- a neuron that carries signals towards brain.2. Motor or efferent neuron- a neuron that carries signals away from brain.3. Inter-neuron which is present in gray matter of spinal cord and convert sensory signals into appropriate motor signals during spinal reflex.
Where does synapses occur in the spinal cord?
Cell body of sensory neuron - in dorsal root ganglion. Cell body of motor neuron - in anterior gray horn.
What is the path that nervous impulse takes through the nervous system?
A nervous impulse begins in the dendrites of a neuron, travels through the cell body and axon, and then is passed on to the next neuron via a synapse. This sequence repeats until the impulse reaches its destination, such as a muscle or gland, where it triggers a response.
What controls reflex actions?
Reflex actions are controlled by the spinal cord and do not involve conscious thought process. When a specific stimulus is detected by sensory receptors, the spinal cord quickly responds by sending signals to motor neurons to produce a reflex response. This rapid reaction allows the body to respond swiftly to potential danger or harm.
What is the primary reflex center for the body?
The primary reflex center for the body is the spinal cord. It coordinates reflex actions in response to stimuli without involving the brain, allowing for quick and automatic responses to potential threats or dangers.
