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2 types of afferent fibres that arise from spinal cord and brain-stem are climbing fibres and mossy fibres.
- climbing fibres :
- from contralateral inferior olivary nucleus (in medulla)
- make excitatory synapses directly on purkinje cells
- mossy fibres :
- from all other structures that send fibres to cerebellum (ex. spinal cord)
- influence purkinje cells indirectly through excitatory synapses with granule cells
What else can I help you with?
Which one of the cerebellar peduncles that contains afferent fibers only?
It's the middle cerebellar peduncle.As for superior cerebellar and inferior cerebellar peduncles, they are both contain afferent and efferent fibres.
What type of fibers make up the posterior and anterior roots of the spinal nerve?
Both Afferent and Efferentboth sensory and motorContains motor & sensory fibers!The spinal cord consists of nerve fibers that are afferent and efferent.
How does habenular nucleus receive its afferent olfactory fibers?
It receives the afferent olfactory fibres via the stria medullaris thalami.
Portion of the brainstem composed of myelinated nerve fibers that connects to the cerebellum?
The portion of the brainstem composed of myelinated nerve fibers that connects to the cerebellum is the peduncles. The peduncles serve as pathways for communication between the cerebellum and other parts of the central nervous system, allowing for coordination of movement and balance.
The white matter of the cerebellum forms the?
The white matter of the cerebellum forms the arbor vitae, which refers to the branching pattern resembling a tree. It contains nerve fibers that connect different parts of the cerebellum and also connects the cerebellum to other parts of the brain.
Which one of the cerebellar peduncles that contains afferent fibers only?
It's the middle cerebellar peduncle.As for superior cerebellar and inferior cerebellar peduncles, they are both contain afferent and efferent fibres.
Afferent nerve fibers enter the part of the spinal cord called?
Afferent nerve fibers enter the spinal cord through the dorsal roots.
What type of fibers make up the posterior and anterior roots of the spinal nerve?
Both Afferent and Efferentboth sensory and motorContains motor & sensory fibers!The spinal cord consists of nerve fibers that are afferent and efferent.
Synapse site for afferent fibers to sensory cortex?
Thalamus
Are effernet nerve fibers described as motor nerve fibers?
Yes, remember the mnemonic SAME DAVESAME DAVE:sensory is afferent, motor is efferentdorsal is afferent, ventral is efferent
How does habenular nucleus receive its afferent olfactory fibers?
It receives the afferent olfactory fibres via the stria medullaris thalami.
Does the amygdaloid nucleus receive its afferent fibers from the olfactory tract?
Yes!
What serves as a bridge between the brainstem and the cerebellum?
The Pons - The Pons includes a bridge of fibers that connects the brainstem with the cerebellum.
Fibers that connect the cerebral cortex and the cerebellum would be called projection fibers?
Projection fibers are long nerve fibers that connect the cerebral cortex to lower regions of the brain, such as the cerebellum. They are responsible for transmitting information between these two brain regions.
What is an important synapse site for afferent fibers traveling to the sensory cortex?
The thalamus.
What structure when activated reduces a muscles ability to create force?
Gamma Afferent fibers
Portion of the brainstem composed of myelinated nerve fibers that connects to the cerebellum?
The portion of the brainstem composed of myelinated nerve fibers that connects to the cerebellum is the peduncles. The peduncles serve as pathways for communication between the cerebellum and other parts of the central nervous system, allowing for coordination of movement and balance.
