Related Essays

  • Tactile Perception In Human Skin

    In human skin, the Pacinian Corpuscles are mostly responsible for rapid adaptation. The interesting feature of these cells is that they are very sensitive ev...

  • Mammalian Skin

    The transduction of these stimuli primarily relies on unique somatorysensory neurons which reside in the trigeminal and dorsal root ganglia and have axonal p...

  • Pathophysiologic Neuropathy Case Studies

    The death of C fibers leads to nociceptor sensitization. Aδ fibers conduct peripheral stimuli, such as touch, which can be interpreted as pain, and this cond...

  • Spinal Cord Research Paper

    The web-like found in the arachnoid mater is an elastic fiber and collagen. Subdural space is in-between the dura and arachnoid has intestinal fluid. The pia...

  • Peripheral Nerve Disorder

    Essay Peripheral Nerve Disorder Most of Peripheral Nervous System’s disorders are cause by neuritis which is an inflammation in the branch, Neuralgia a nerv...

  • Ols Co-Culture Model

    Co-culture of neurons and mixed glia have been used to study the synergistic toxic effects of HIV-1 Tat and morphine on neurons (Zou et al., 2011b). In this ...

  • Incidence, Treatment And Outcome Of Guillain-Barre Syndrome

    Introduction The nervous system is an integral part of many an organism’s life. Which is the most important organ in the body? Many would attribute that tit...

  • Action Potential Lab Report

    INTRODUCTION Our nerve cells are highly involved in the environmental and internal complex processes of our body. In order for the input and output mechani...

  • MRI Case Summary

    Sensation is decreased over the radial digital nerve. Tinel’s is positive over the digital nerve course. Sensation is decreased to 2 discrimination along ...

  • Three Types Of Glial Cells And Neurons

    Neurons are not the only cells that occupied the central nervous system (CNS). In fact, neurons are outnumbered by supportive non-excitable cells, collective...

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

Card Range To Study

through

image

Play button

image

Play button

image

Progress

1/12

Click to flip

Use LEFT and RIGHT arrow keys to navigate between flashcards;

Use UP and DOWN arrow keys to flip the card;

H to show hint;

A reads text to speech;

12 Cards in this Set

  • Front
  • Back

Gliosis

Proliferation and hypertrophy of glial cells.

Neuron AP depends on?

Leakage of K out of cell.

Local anaesthetics effects on neurons?

Block Na chs inhibiting signaling.



Ex. Lidocaine, benzocaine, tetracaine. Cocaine, tetradotoxin

Caps of astrocytes

Remove excess NTs.



GFAP marker for ID astrocytomas.


Commonly infected by JV virus in HIV pts causing PML.

Caps of microglia

Proliferate in response to injury.




HIV infection causes chronic HIV encephalitis.

Caps of oligodendroglia

Destropyed in MS.

Caps of Schwann cells

Destroyed in Guillain-Barre Syndrome.




Formation of schwanomas affecting CN VIII, "acoustic neuromas".

How do nerves sense?

- Free nerve endings


- Meissner's corpuscles


- Pacinian corpuscles


- Merkel's discs

Free nerve endings

Found in skin.




For sensation of pain & temperature. Use C & A-delta fibers.

Meissner's corpuscles

Found in surface of skin, mostly in hairless areas.




For sensation of touch. Uses A-alpha fibers.




Rapid adapting!

Pacinian corpuscles

Found in deep skin, joints & ligaments.




For sensation of vibration & pressure. Egg shaped! Uses A-alpha fibers.




Rapid adapting!

Merkel's discs

Found mainly in hair follicles.






For sensation of pressure & position. Uses A-alpha fibers.




Slow adapting!