View the University of Michigan WebScope (http://openstaxcollege.org/l/nervefiber) to see an electron micrograph of a cross-section of a myelinated nerve fiber. The axon contains microtubules and neurofilaments that are bounded by a plasma membrane known as the axolemma. Outside the plasma membrane of the axon is the myelin sheath, which is composed of the tightly wrapped plasma membrane of a Schwann cell. What aspects of the cells in this image react with the stain to make them a deep, dark, black color, such as the multiple layers that are the myelin sheath?

Name four types of glial cells in the Central Nervous System, and list a function for each of these cells: Type of glial cell Functions а. b. C. d. Name the Peripheral Nervous System (PNS) glial cell that forms myelin: (0.5 points) Name the PNS glial cell that ssurrounds neuron cell bodies in ganglia:(0.5 points)

Myelin sheaths function to electrically insulate neurons. Compare and contrast the myelination in the CNS and PNS (hint: include the cell types and their specific properties).

On this motor neuron, Add in and label: dendritic spines an axon collateral, with axon terminals synaptic knobs myelin on the axon and axon collateral synaptic knobs Draw arrows and label: ахon axon terminals synaptic knobs cell body dendrites and dendritic spines And draw an arrow showing the direction the action potential travels.

Early in an action potential, the inside of the axon becomes less negatively charged relative to the outside, this is called.   Polarization  Depolarization  Hyperpolarization  Repolarization ---------------------------------- Neurotransmitters -gated (ligand gated) ions channels are important for ____, while voltage gated ion channels are important for ____    Communication between neurons; communication within neurons    communication within neurons; Communication between neurons ------------------------------- In gross neuroanatomy we are interested in structures that are NOT visible to the naked eye.  True or false.

(f) Parts of a Neuron A Axon (initial B segment) G H C D | Synapse: The region where an axon terminal communicates with its postsynaptic target cell E F Output signal 02019 Person Education, Inc. Use the list below to identify D in the figure. postsynaptic neuron, integration, cell body, axon, action potential, presynaptic axon terminal, myelin sheath, synaptic vesicle, dendrites, input signal, Node of Ranvier, postsynaptic dendrite, nucleus, integration, axon hillock, voltage gated channel Synaptic cleft J

Axon can't branch Afferent neurons are generally bipolar neurons Most neurotransmitters are synthesized in the cytosol of a neuron GABA is the most common inhibitory neurotransmitter in the central nervous system Tendons are regular dense connective tissue that connect muscles to bone

Place each label in the proper position to designate the appropriate glial cell. Insulate neurons and enhance the rate of transmission in the PNS Produce and circulate CSF Macrophages of the CNS Surround and insulate cells of the PNS and found around the somas Form the myelin sheath in the PNS Most abundant CNS glial cells Form the myelin sheath in the CNS Multi-functioning cells involved with neurogenesis, scar formation, etc. Ciliated cells resembling epithelium Oligodendrocytes Ependymal Cells Microglia Astrocytes Schwann Cells Satellite Cells Reset

Compare and contrast the events that occur at a neuromuscular junction (NMJ) and a neuron-neuron junction (a chemical synapse (CS)). Take it step by step, pointing out similarities or differences at each step. Begin with “Both processes begin with an action potential travelling down the axon.” and then tell me what is the same and what is different as the story unfolds.

Give correct typing answer with explanation