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In the reflex arc a muscle or gland is considered to be the?
In the reflex arc, a muscle or gland is considered to be the effector. Its role is to respond to the stimulus provided by the sensory neuron and produce the appropriate action, such as muscle contraction or gland secretion.
Which does not constitute part of a two-neuron reflex?
A two-neuron reflex typically involves a sensory neuron carrying information from a sensory receptor to the spinal cord, where it synapses with an interneuron. The interneuron then synapses with a motor neuron that carries the response signal to an effector organ, such as a muscle or gland. In this pathway, a third neuron would not typically be involved in a two-neuron reflex.
An axon of an efferent neuron could synapse with?
An axon of an efferent neuron could synapse with a muscle fiber, gland, or another neuron in the peripheral nervous system.
What muscle is the parotid gland close to?
The parotid gland is close to the masseter muscle, which is one of the main muscles responsible for chewing.
What is a synapse in a simple reflex action?
A synapse in a simple reflex action is a junction between two neurons where signals are transmitted. In a reflex action, when a stimulus triggers a sensory neuron, it sends a signal across a synapse to a motor neuron, which then causes a rapid response from a muscle or gland.
In the reflex arc a muscle or gland is considered to be the?
In the reflex arc, a muscle or gland is considered to be the effector. Its role is to respond to the stimulus provided by the sensory neuron and produce the appropriate action, such as muscle contraction or gland secretion.
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.
The structure that brings about response in the nervous system?
The effector such as a muscle or gland brings about response in the nervous system.
Name a structure that receives signals from autonomic nervous system?
Smooth muscle, cardiac muscle, gland
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.
First step in a reflex arc?
A reflex arc involves the following components:The receptor is the part of the neuron (usually a dendrite) that detects a stimulus.The sensory neuron transmits the impulse to the spinal cord.The integration center involves one synapse (monosynaptic reflex arc) or two or more synapses (polysynaptic reflex arc) 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 from the motor neuron. In somatic reflexes, the effector is skeletal muscle. In autonomic (visceral) reflexes, the effector is smooth or cardiac muscle, or a gland.
The efferent division of the peripheral nervous system innervates?
A muscle or a gland. Efferent fibers carry information away from the CNS to innervate tissues that perform functions; such as a gland, a smooth muscle, a skeletal muscle, or cardiac muscle. The antonym to efferent would be afferent.
What division of the autonomic nervous system mediates the reflex release of saliva?
The parasympathetic division of the autonomic nervous system is responsible for mediating the reflex release of saliva. Stimulation of the parasympathetic nerves activates saliva production by the salivary glands.
What gland directly stimulated by the nervous system to secrete hormones?
adrinal gland stimulates the nervous system
What 3 neurons make up a reflex arc?
The three neurons in a reflex arc are the sensory neuron, which carries the sensory information from the sensory receptor to the central nervous system; the interneuron, which processes the information in the spinal cord or brain; and the motor neuron, which carries the response signal from the central nervous system to the effector muscle or organ.
What are the structures and functions of a reflex arc?
A reflex arc consists of a sensory receptor that detects a stimulus, a sensory neuron that transmits the signal to the spinal cord, an interneuron that processes the information, a motor neuron that carries the response signal, and an effector (muscle or gland) that produces the reflex action. The function of a reflex arc is to produce a rapid and automatic response to a stimulus without conscious control to protect the body from harm.
What best indicated the pathway that nerve impulses travel in a simple reflex?
A simple reflex travels in this order:StimulusA stimulus (stimuli, plural) is an outside happening that affects the body (i.e., sound, sight, taste, pain). 2. Sensory ReceptionThis is when the body senses the stimulus through receptors located all over the body. Some receptors are clustered to form our major sensory organs (i.e., taste buds on tongue).3. Central Nervous SystemSensory neurons transmit the signal to the CNS (brain and spinal cord) through peripheral nerves that connect from the body's extremities to the CNS.If this simple reflex is part of a simple reflex arc (a stimulus that produces some reflexive response), the brain then sends instructions through a motor neuron to an effector (usually a muscle or gland). This prompts either muscle movement or chemical action.
