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What are the functional region of a neuron?
receptive conducting secretory
What portion a neuron conducts nerve impulses away from the neuron?
axons
What part of the neuron carries impulses to the neuron?
The axon, an elongated portion of the neuron, carries impulses to the muscles.
Which component is usually absent from a neuron?
centrioles
What parts of a neuron is capable of generating a graded potential?
The dendrites portion of a neuron will generate a potential.
Where does an action potential start?
Action potentials are generated on a part of the neuron called the 'axon hillock' - the proximal most portion of the axon.
What is the secretory zone of neuron?
The secretory zone of a neuron refers to the region where neurotransmitters are synthesized, stored, and released. It includes the synaptic vesicles that contain the neurotransmitters and the presynaptic terminal where they are released into the synaptic cleft. This zone plays a crucial role in transmitting signals between neurons and facilitating communication in the nervous system.
What part of the motor neuron carries impulses to the muscle?
The axon, an elongated portion of the neuron, carries impulses to the muscles.
Why is a neuron called an interneuron?
A neuron is called a inter-neuron because that specific neuron takes impulse from one neuron to a next neuron. For example your sensory neuron sends a impulse that you had felt a hot object. It goes through the spine to a inter-neuron to a motor neuron (this processes is called a reflex). Then the motor neuron tells your muscles in your hand to move
Which component of a reflex arc is located entirely within the central nervous system?
Many authors refer to the CNS portion of the reflex arc as the integration center.In regards to a monosynaptic reflex arc, the synapse is the only portion of the integration center.Polysynaptic reflex arcs, have multiple synapses and interneuron(s).
What is a Secretory synapse?
A secretory synapse is a type of synapse where the presynaptic neuron releases neurotransmitters into the extracellular space rather than across a synaptic cleft to act on a postsynaptic neuron. This communication occurs through volume transmission, allowing for more widespread and diffuse signaling compared to conventional synaptic transmission. Examples include neurosecretory cells in the hypothalamus that release hormones into the bloodstream.
What component of the reflex arc determines the response to a stimulus?
The component that determines the response to a stimulus in a reflex arc is the interneuron. This neuron receives the sensory input from the sensory neuron, processes the information, and then sends signals to initiate the appropriate motor response via the motor neuron.
