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The nervous reflex arc that typically involves a muscle or gland is known as the motor reflex arc. In this arc, sensory neurons transmit signals from a stimulus to the spinal cord, where they connect with interneurons or directly with motor neurons. The motor neurons then send signals to muscles to contract or to glands to secrete substances, resulting in an immediate response to the stimulus. This process enables rapid reactions to environmental changes, such as pulling away from a hot surface.
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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.
What is a neuron that sends an impulse to a muscle or gland causing the muscle or gland to react?
A neuron that sends an impulse to a muscle or gland is called an efferent neuron, specifically a motor neuron. These neurons transmit signals from the central nervous system to effectors, such as muscles or glands, leading to a physical response or secretion. When stimulated, motor neurons release neurotransmitters that trigger muscle contraction or glandular activity, enabling movement or physiological changes.
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.
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 nervous system stimulates salivary gland secretion, and accelerates peristalsis, so, in keeping with the rest and digest functions, appropriate PNS activity mediates digestion of food and indirectly, the absorption of nutrients. Source: Wikipedia: http://en.wikipedia.org/wiki/Autonomic_nervous_system enteric nervous system is responsible for the pupillary light reflex
What is a neuron that sends an impulse to a muscle or gland causing the muscle or gland to react?
A neuron that sends an impulse to a muscle or gland is called an efferent neuron, specifically a motor neuron. These neurons transmit signals from the central nervous system to effectors, such as muscles or glands, leading to a physical response or secretion. When stimulated, motor neurons release neurotransmitters that trigger muscle contraction or glandular activity, enabling movement or physiological changes.
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?
There are actual two types of reflex arc. One contains just two and the other contains three.A reflex arc involves the following components:1. The receptor (sensory neuron) that detects a stimulus.The sensory neuron transmits the impulse to the spinal cord.2.The integration center (interneuron) in the cord. This one can be missing. If it is, the reflex is very, very rapid. If the interneuron is used, it can send information up the cord to the brain. Your response will be faster than your brain's "knowing" what happened.3. 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. In somatic reflexes, the effector is skeletal muscle. In autonomic (visceral) reflexes, the effector is smooth or cardiac muscle, or a gland.
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.
