Fact: The dendrites, cell bodies, and axons of neurons vary in morphology depending on the function of the neuron. Question: How do you think the motor neurons differ from other neurons located within the brain? Motor neurons have many axons and few dendrites; neurons within the brain have few axons and few dendrites Motor neurons have many dendrites to integrate many motor signals; neurons within the brain have many axons to communicate with distant neurons Motor neurons have long myelinated axons to transmit electrical signals long distances; neurons within the brain have smaller axons. Motor neurons have long myelinated dendrites to transmit electrical signals long distances; neurons within the brain have long axons. Motor neurons have long dendrites that receive signals from distant parts of the body; neurons within the brain have many short dendrites that integrate information from many neighboring neurons.

Fact: The dendrites, cell bodies, and axons of neurons vary in morphology depending on the function of the neuron. Question: How do you think the motor neurons differ from other neurons located within the brain? Motor neurons have many axons and few dendrites; neurons within the brain have few axons and few dendrites Motor neurons have many dendrites to integrate many motor signals; neurons within the brain have many axons to communicate with distant neurons Motor neurons have long myelinated axons to transmit electrical signals long distances; neurons within the brain have smaller axons. Motor neurons have long myelinated dendrites to transmit electrical signals long distances; neurons within the brain have long axons. Motor neurons have long dendrites that receive signals from distant parts of the body; neurons within the brain have many short dendrites that integrate information from many neighboring neurons.

Anatomy & Physiology

1st Edition

ISBN:9781938168130

Author:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Publisher:Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

Chapter12: The Nervous System And Nervous Tissue

Section: Chapter Questions

Problem 4ILQ: View the University of Michigan Webscope (http://openstaxcollege.org/l/nervefiber) to see an...

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Stellate cells initially process sensory input to the cortex, whereas pyramidal cells send fibers from the cortex to terminate on efferent motor neurons. (True or false)
Somatic sensory and somatic motor information are propagated via specialized neurons. If you dip your toes in a hot tub before entering the tub, the action potentials generated by the water temperature travels via which of the following structures before it can be perceived by you? O unipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O unipolar neurons from the toes to the spinal nerve, dorsal root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerve, ventral root, spinal cord, thalamus, primary somatosensory cortex O multipolar neurons from the toes to the spinal nerves, dorsal root, spinal cord, thalamus, primary somatosensory cortex
Motor Pathways Fill in the blanks with the terms provided. Not all terms will be used. anterior interneurons receptors posterior effectors descending lower upper skeletal muscle Motor pathways are least two motor neurons are present in the motor pathway: an upper motor neuron and a lower motor neuron. The cell body of an within the brain stem. Axons of these synapse either directly on pathways in the brain and spinal cord that control At motor neuron is housed either within the cerebral cortex or a nucleus motor neurons, or on . The cell body of a lower motor neuron is housed either within the spinal cord or within a brainstem cranial nerve nucleus. Axons of the lower motor neurons exit the CNS and horn of the project to to be innervated.
In the autonomic nervous system, the lower motor neurons directly innervate effector organs. there is always a synapse between the CNS and the effector organ. \ motor neurons do not synapse but are connected by gap junctions. the cell bodies of all motor neurons are found in ganglia outside the CNS. neurons have dendrites but no axons.
Excitatory neurons A and B both synapse with neuron C. Neuron A releasesa neurotransmitter, and neuron B releases the same type and amount ofneurotransmitter plus a neuromodulator that produces EPSPs in neuron C.Action potentials produced in neuron A alone can result in action potentialproduction in neuron C. Action potentials produced in neuron B alone alsocan cause action potential production in neuron C. Which results in moreaction potentials in neuron C, stimulation by only neuron A or stimulationby only neuron B? Explain.
Interneuron after-discharge circuits prolong the duration of :-a- sensory input to the spinal motor centersb- synaptic delay in central synapsesc- discharge of efferent neuronsd- conscious perception of the evoked sensation
Anatomically, the motor endplate potential is characterized by synaptic boutons active zones junctional folds Ach receptor-channels all the above
MovementKnow the components of the motor control system What are the components of the motor control system? Intro to neuroscience College-level Please provide some pictures and visual explanations to these concepts. I need a visual answer and not just an essay. So, the explanation must include diagrams of the relevant component of the motor control system.
Visit this site (http://openstaxcollege.org/l/neurolab)to see a virtual neurophysiology lab, and to observeelectrophysiological processes in the nervous system,where scientists directly measure the electrical signalsproduced by neurons. Often, the action potentials occur sorapidly that watching a screen to see them occur is nothelpful. A speaker is powered by the signals recorded froma neuron and it “pops” each time the neuron fires an actionpotential. These action potentials are firing so fast that itsounds like static on the radio. Electrophysiologists canrecognize the patterns within that static to understand whatis happening. Why is the leech model used for measuringthe electrical activity of neurons instead of using humans?
γ-motor neuron discharge to a muscle is inhibited by impulses reaching the γ-motor neurons from all the following source, except :-a- Golgi tendon organs of the same muscleb- spindles of antagonistic musclesc- medullary reticular formationd- pontine reticular formation
Compare and contrast the upper and lower motor neuronswith respect to their cell body origin, what structure(s) theyproject to, and whether they are excitatory or inhibitory
Match each numbered item with the most closely related lettereditem.Challenge Yourself1. motor nervoussystem2. effector3. oligodendrocyte4. chromatophilicsubstance5. collaterals6. microglial cells7. multipolar neurons8. interneuron9. chemical synapse10. dendritea. skeletal muscle fiberb. neuron part that usuallyreceives incoming impulsesc. stain darkly with basic dyesd. transmits motor informatione. uses a neurotransmitterf. makes myelin sheaths in CNSg. neurons with multipledendritesh. side branches of axonsi. respond to CNS infectionj. sensory to motor neuroncommunication