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Histology

Nervous system

QuestionAnswer
name the components of the central nervous system brain, spinal cord
name the components of the peripheral nervous system cranial, spinal, peripheral nerves
which part of the PNS is responsible for voluntary control somatic
name the components of a neuron soma, axon, dendrite
name the supporting cells of the CNS oligodendrocytes, astrocyte, ependymal, microglial
name the supporting cells of the PNS schwann, satellite
this is a support cell in the PNS that surrounds neuron cell bodies in glanglia nad regulate oxygen, carbon dioxide content, and neurotransmitter levels around the neurons in the ganglia satellite cells
this support cell makes myelin in the PNS schwann cells
this support cell makes myelin in the CNS oligodendrocytes
this support cell in the CNS maintains the blood brain barrier, provides structural support, regulates ion-nutrien content..etc Astrocytes
this support cell in the CNS removes cell debris, wastes, and pathogens by phagocytosis microglia
this support cell in the CNS lines the ventricles and central canal and make CSF ependymal cells
this type of neuron is considered the "classical" neuron and has multiple dendrites and one axon multipolar neuron
this type of neuron has one dendrite and one axon, and is quite rare bipolar neuron
this type of neuron has one axon that divides into two axons as it exits the cell body. pseudounipolar neuron
this is the junction between the end of one axon and either another axon, dendrite, or its target cell/organ synapse
these are the two types of basic synapses electrical, chemical
this type of synapse is primarily found in invertebrates electrical
in this type of synapse, conduction is achieved via neurotransmitters chemical
these are excitatory neurotransmitters Acetylcholine, glutamine, seratonin
these are inhibitory neurotransmitters GABA, glycine
paralytic drugs block this neurotransmitter at the neuromuscular junction Acetylcholine
in this type of axonal transport, proteins carry molecules from the cell body to the axon/dendrites (periphery) Anterograde
anterograde transport uses this protein kinesin
in this type of axonal transport, proteins carry molecules from the periphery back to the cell body retrograde
retrograde transport uses this protein Dyenin
true/False, recovery from nerve damage is very slow true
HSV takes control over this type of transport system retrograde transport
this term describes the action potential juping form one node of ranvier to another saltatory conduction
these are found in the PNS and are similar to schwann cell sbut are found specifically around the cell body satellite cells
myelin producing cells of the CNS, and they myelinate multiple axons oligodendrocytes
this is an autoimmune disease that targets myelin and oligodendrocytes. changes occur in the lipid and protein components of myelin resulting in multiple "plaques" found throughout the CNS. multiple sclerosis
these provide physical/metabolic support for CNS neurons. the processes of these cells form tight junctions on nearby capillaries to form the blood brain barrier. astrocytes
this is an advanced astrocytoma and is the most common and aggressive brain tumor in adults. patients present with headache, nausea, vomitting, seizurs glioblastoma multiforme
this glian cell of the CNS has phagocytotic properties and is the only neorological cell that is NOT formed from the neural tube. Microglial cells
these glial cells of the CNS form the epithelium-like lining of fluid filled cavities of the brain and spinal cord. they are cuboidal/columnar cells which along with adjacent capillaries form CSF Ependymal cells
this CT surrounds and individual nerve fiber ENDOneurium
this CT surrounds nerve fasicle (multiple nerve fibers) PERIneurium
this CT surrounds the entire peripheral nerve EPIneurium
this part of the ANS controles motility, secretions, and blood flow and can function independently of the CNS Enteric NS
This disease is the most common cause of intestinal obstruction in neonates. it is a congenital disease in which there is a lack of enteric nerves in a segment of the colon. Hirschsprungs
this is a response to neuronal injury. the nucleus moves to the periphery, the axon swells and begins disintegrating distal to the site of injury and macrophages clean myelin debris wallerian degeneration
This happens during neuronal regeneration in the PNS Schwann cells line themselves together forming a hollow tube simultaneously releasing growth factors to "attract" growing axon. as it grows, the axon will ultimately penetrate the hollow tube.
True/False: injured nerves in the CNS are unlikely to regenerate True
this is a process occuring in the CNS during neuronal regeneration when astrocytes respond to injury by forming a scar reactive gliosis
Created by: aferdo01
 

 



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