STEP 5. Slides of a neuron, nerve, and spinal cord #1 Neuron slide - - PDF document

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Dec 17, 2022 325 likes •371 views

STEP 5. Slides of a neuron, nerve, and spinal cord #1 Neuron slide This step can wait until later, if youd like. But make sure you look at these Read images! Me First, we will look at the motor neuron. Note that it is difficult to

SLIDE 1

#1

STEP 5. Slides of a neuron, nerve, and spinal cord Neuron slide

This step can wait until later, if you’d like. But make sure you look at these images! First, we will look at the motor neuron. Note that it is difficult to distinguish an axon from a dendrite. On the exam, if I label an axon, I will make usre the axon hillock is SUPER OBVIOUS, as in “Image B” below. You may not be able to find one this nice yourself on the slide, in which case just study Image B below! The images below are showing a motor neuron slide at medium power. Find the following terms on the slide, and label the following on the indicated image: Image A (most common view): Body/Soma Nucleus of neuron Dendrites Glial cells - Satellite Cells Image B (lucky to see the axon hillock!): Body/Soma Nucleus of neuron Dendrites Axon Hillock & Axon Glial cells - Satellite Cells

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Image A Image B

SLIDE 2

#2

Nerve slide

This step can wait until later, if you’d like. But make sure you look at these images! In the image below, upper portion, we are seeing a nerve at low power. THIS IS THE POWER I TEST AT! In the lower image, we are zooming into part of a fasciculus to see the individual neruons. Please know these at low or medium power for the Practical: Epineurium Perineurium Fasciculus

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SLIDE 3

#3

Spinal Cord slide

This step can wait until later, if you’d like. But make sure you look at these images! In the image below, upper portion, we are seeing a spinal cord at low power,. THIS IS THE POWER I TEST AT! In fact, I sometimes cannot get low enough power on the microscope, in which case I use an image like the one below. On some slides, the dorsal root ganglion is not obvious (as it is in the image below).

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Find on image (terms are NOT in

rder):

Pia mater Dura mater (if present) Central canal Dorsal root ganglion (if present) Anterior median fissure Posterior median sulcus Posterior (dorsal) horn of grey matter Anterior (ventral) horn of grey matter Lateral column white matter Posterior (dorsal) column of white matter Anterior (ventral) column of white matter Grey commissure Anterior Posterior