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Are the autonomic integrating centers monosynaptic or polysynaptic?
Autonomic integrating centers are polysynaptic, meaning they involve multiple synapses and interneurons in processing and coordinating autonomic functions such as heart rate, digestion, and respiration. This complex network allows for modulation and control of autonomic responses based on various internal and external stimuli.
Distinguish between monosynptic and polysynaptic?
Monosynaptic pathways involve a single synapse between sensory and motor neurons, resulting in a direct and fast response. Polysynaptic pathways involve multiple synapses and interneurons, allowing for more complex and coordinated responses involving sensory integration and modulation before reaching the motor output.
What is the difference between monosynaptic and polysynaptic?
Monosynaptic refers to a neural pathway involving just one synapse, while polysynaptic involves multiple synapses. Monosynaptic pathways are direct and involve only two neurons, while polysynaptic pathways are more complex and involve multiple relay neurons.
Why is response time in a monosynaptic reflex much faster than response time in a polysynaptic reflex?
Transmission across a chemical synapse always involves a synaptic delay, but with only one synapse (a monosynaptic reflex), the delay between stimulus and response is minimized. In a polysynaptic reflex, the length of delay is proportional to the number of synapses involved.
Where do interneurons connect sensory neurons and motor neurons?
Interneurons connect sensory neurons to motor neurons in the central nervous system, specifically in the spinal cord and brain. They act as relay stations for transmitting signals between sensory and motor neurons, allowing for the integration and processing of information for appropriate responses.
What connects the sensory neurons to motor neurons?
Interneurons connect sensory neurons to motor neurons in the central nervous system. The interneurons process and relay information received from sensory neurons to motor neurons, which then initiate a response or movement.
What connects one nerve cell with another?
Nerve cells are connected by structures called synapses. These synapses allow for communication between nerve cells by transmitting signals in the form of neurotransmitters. The synaptic connection between nerve cells enables the propagation of information through the nervous system.
Where does synapses take place?
The synapses take place in the spinal cord
How many synapses does the brain have?
The brain is estimated to have around 100 trillion synapses. These synapses are the connections between neurons that allow them to communicate with each other.
Are there synapses in peripheral nervous system?
There are synapses between each and every neuron in the entire nervous system; so yes, there are synapses in the peripheral section of the nervous system.
What happens when you touch something hot Explain using reflex arc diagram?
When you touch something hot, the heat is detected by thermal receptors in your skin. This information is sent as an electrical signal through sensory neurons to the spinal cord where it synapses with interneurons. The interneurons then send a signal through motor neurons back to the muscles causing a reflex response to quickly move your hand away from the hot object, before the brain even registers the sensation of heat.
What are specialized junctions between neurons called?
Specialized junctions between neurons are called synapses. Synapses allow neurons to communicate with each other by transmitting signals in the form of neurotransmitters. There are two main types of synapses: electrical synapses, where ions flow directly between neurons, and chemical synapses, where neurotransmitters are released to relay the signal.
