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Used to distinguish new sessions and visits. This cookie is set when the GA.js javascript library is loaded and there is no existing __utmb cookie. The cookie is updated every time data is sent to the Google Analytics server.
30 minutes after last activity
__utmc
Used only with old Urchin versions of Google Analytics and not with GA.js. Was used to distinguish between new sessions and visits at the end of a session.
End of session (browser)
__utmz
Contains information about the traffic source or campaign that directed user to the website. The cookie is set when the GA.js javascript is loaded and updated when data is sent to the Google Anaytics server
6 months after last activity
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Contains custom information set by the web developer via the _setCustomVar method in Google Analytics. This cookie is updated every time new data is sent to the Google Analytics server.
2 years after last activity
__utmx
Used to determine whether a user is included in an A / B or Multivariate test.
18 months
_ga
ID used to identify users
2 years
_gali
Used by Google Analytics to determine which links on a page are being clicked
30 seconds
_ga_
ID used to identify users
2 years
_gid
ID used to identify users for 24 hours after last activity
24 hours
_gat
Used to monitor number of Google Analytics server requests when using Google Tag Manager
1 minute
_gac_
Contains information related to marketing campaigns of the user. These are shared with Google AdWords / Google Ads when the Google Ads and Google Analytics accounts are linked together.
90 days
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ID used to identify users and sessions
2 years after last activity
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Used to monitor number of Google Analytics server requests
10 minutes
MT30-Histology Art AB 4 years, 6 months ago Nervous tissue is found in the brain, spinal cord, and nerves. It is responsible for coordinating and controlling many body activities. It stimulates muscle contraction, creates an awareness of the environment, and plays a major role in emotions, memory, and reasoning. Please see comments for more information
Description: The neuron consists of a cell body, dendrites, and an axon. Information flows from the dendrites to the cell body, and then on down the axon to its terminal.
* SOMA
Structure: contains the nucleus and other structures common to living things
Function: maintains the neuron’s structure and provides energy to drive activities
* AXON
Structure: long, tail-like structure
Function: It joins the cell body at a specialized junction called the AXON HILLOCK; instituated with a fatty substance called MYELIN which helps axons to conduct an electrical signal.
* DENDRITES
Structure: fibrous roots that branch out from the cell body
Function: receive and process signals from axons of other neurons
* Unipolar – usually found in invertebrate
species
– has a single axon
-sensory neurons; supply the branching dendrites for incoming signals and an axon for outgoing signals
* Multipolar – single axon, but 3 or more
processes (symmetrical dendrites)
– most common form of our neuron in our CNS
-receive impulses from multiple neurons via dendrites
* Pyramidal – 1 axon and symmetrical dendrites
(2) that extend from it
– cell body in a pyramid type shape
– largest neuron cells mostly found in the cortex
(in the brain responsible for our conscious
thoughts)
-transform synaptic inputs into a patterned output of action potentials
*Bipolar – mostly found in the retina of the eye
but can also be found in parts of the nervous
system that helps in the nose and ears functions
– transmission of sense; sensory neurons (functions)
* Purkinje – Inhibitory neurons (release
neurotransmitters that keeps other neurons
from firing
* Schwann Cells – counterpart of the
oligodentrocytes
– help in making myelin sheath
– important for Phagocytosis
* Satellite Cells – analogous to the Astrocytes in
the CNS
– maintain a stable chemical environment in the
nucleus