Your brain has around 86 million nerve cells and nearly as many support cells.
Find out about the different cells in the brain and their important roles with these activities.
Your brain has around 86 million nerve cells and nearly as many support cells.
Find out about the different cells in the brain and their important roles with these activities.
Learn about different types of brain cells with this worksheet.
Answers to the activities in the worksheet.
Make a pipe cleaner nerve cell with this hands-on activity.
| Cookie | Duration | Description |
|---|---|---|
| __adal_ca | 5 months 27 days | Adalyser sets this cookie to stores which advertising campaign drove a user to visit, stores traffic source and campaign data. |
| __adal_cw | 7 days | Adalyser sets this cookie to tie back conversion events to earlier visits and stores a visit timestamp. |
| __adal_id | 1 year 1 month 4 days | Adalyser stores the Device ID generated by this cookie as a unique identifier for the device. |
| __adal_ses | 30 minutes | Adalyser sets this cookie to determine whether there is an active session and which conversions have taken place in this session to prevent duplicates, stores a list of events in this session. |
| _fbp | 3 months | This cookie is set by Facebook to deliver advertisement when they are on Facebook or a digital platform powered by Facebook advertising after visiting this website. |
| _opt_expid | less than a minute | Set by Google Analytics, this cookie is created when running a redirect experiment. It stores the experiment ID, the variant ID and the referrer to the page that is being redirected. |
| _pin_unauth | 1 year | Pinterest set this cookie to group actions for users who cannot be identified. |
| ai_user | 1 year | Microsoft Azure sets this cookie as a unique user identifier cookie, enabling counting of the number of users accessing the application over time. |
| B | 1 year | This Cookie is used by Yahoo to provide ads, contents or analytics. |
| bscookie | 2 years | This cookie is a browser ID cookie set by Linked share Buttons and ad tags. |
| fr | 3 months | The cookie is set by Facebook to show relevant advertisments to the users and measure and improve the advertisements. The cookie also tracks the behavior of the user across the web on sites that have Facebook pixel or Facebook social plugin. |
| guest_id | 1 year 1 month 4 days | Twitter sets this cookie to identify and track the website visitor. It registers if a user is signed in to the Twitter platform and collects information about ad preferences. |
| guest_id_ads | 1 year 1 month 4 days | Twitter sets this cookie to identify and track the website visitor. |
| guest_id_marketing | 1 year 1 month 4 days | Twitter sets this cookie to identify and track the website visitor. |
| id | 1 month | The main purpose of this cookie is targeting and advertising. It is used to create a profile of the user''s interest and to show relevant ads on their site. This Cookie is set by DoubleClick which is owned by Google. |
| IDE | 1 year 24 days | Used by Google DoubleClick and stores information about how the user uses the website and any other advertisement before visiting the website. This is used to present users with ads that are relevant to them according to the user profile. |
| li_sugr | 3 months | LinkedIn sets this cookie to collect user behaviour data to optimise the website and make advertisements on the website more relevant. |
| muc_ads | 1 year 1 month 4 days | Twitter sets this cookie to collect user behaviour and interaction data to optimize the website. |
| MUID | 1 year 24 days | Bing sets this cookie to recognise unique web browsers visiting Microsoft sites. This cookie is used for advertising, site analytics, and other operations. |
| NID | 6 months | Google sets the cookie for advertising purposes; to limit the number of times the user sees an ad, to unwanted mute ads, and to measure the effectiveness of ads. |
| personalization_id | 1 year 1 month 4 days | Twitter sets this cookie to integrate and share features for social media and also store information about how the user uses the website, for tracking and targeting. |
| rl_anonymous_id | never | RudderStack set this cookie to store statistical data of users' behaviour on the website, which can be used for internal analytics by the website operator. |
| rl_group_id | never | RudderStack sets this cookie to collect user activity on the web. |
| rl_group_trait | never | Rudderstack sets this cookie, which is used to store performed actions on the website. |
| rl_page_init_referrer | never | Rudderstack sets this cookie, which is used to store performed actions on the website. |
| rl_page_init_referring_domain | never | Rudderstack sets this cookie, which is used to store performed actions on the website. |
| rl_trait | never | Rudderstack sets this cookie, which is used to store performed actions on the website. |
| rl_user_id | never | RudderStack set this cookie to store a unique user ID for the Marketing/Tracking purpose. |
| SUID | 12 hours | Google Analytics sets this cookie to collect data on user preferences and/or interaction with web campaign content (Microsoft). |
| test_cookie | 15 minutes | This cookie is set by doubleclick.net. The purpose of the cookie is to determine if the users'' browser supports cookies. |
| VISITOR_INFO1_LIVE | 5 months 27 days | This cookie is set by Youtube. Used to track the information of the embedded YouTube videos on a website. |
| yt-remote-connected-devices | never | YouTube sets this cookie to store the user's video preferences using embedded YouTube videos. |
| yt-remote-device-id | never | YouTube sets this cookie to store the user's video preferences using embedded YouTube videos. |
| yt.innertube::nextId | never | YouTube sets this cookie to register a unique ID to store data on what videos from YouTube the user has seen. |
| yt.innertube::requests | never | YouTube sets this cookie to register a unique ID to store data on what videos from YouTube the user has seen. |
| Cookie | Duration | Description |
|---|---|---|
| _ga | 2 years | This cookie is installed by Google Analytics. The cookie is used to calculate visitor, session, campaign data and keep track of site usage for the site''s analytics report. The cookies store information anonymously and assign a randomly generated number to identify unique visitors. |
| _ga_* | 1 year 1 month 4 days | Google Analytics sets this cookie to store and count page views. |
| _ga_TR76MGPH49 | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
| _gaexp_rc | less than a minute | Google Analytics sets this cookie to determine a user's inclusion in an experiment and the expiry of experiments that a user has been included in. |
| _gat_UA-* | 1 minute | Google Analytics sets this cookie for user behaviour tracking. |
| _gcl_au | 3 months | This cookie is used by Google Analytics to understand user interaction with the website. |
| _gid | 1 day | This cookie is installed by Google Analytics. The cookie is used to store information of how visitors use a website and helps in creating an analytics report of how the wbsite is doing. The data collected including the number visitors, the source where they have come from, and the pages viisted in an anonymous form. |
| _hjRecordingEnabled | never | Hotjar sets this cookie when a Recording starts and is read when the recording module is initialized, to see if the user is already in a recording in a particular session. |
| _hjRecordingLastActivity | never | Hotjar sets this cookie when a user recording starts and when data is sent through the WebSocket. |
| _hjSession_* | 30 minutes | Hotjar sets this cookie to ensure data from subsequent visits to the same site is attributed to the same user ID, which persists in the Hotjar User ID, which is unique to that site. |
| _hjSessionUser_* | 1 year | Hotjar sets this cookie to ensure data from subsequent visits to the same site is attributed to the same user ID, which persists in the Hotjar User ID, which is unique to that site. |
| ai_session | 30 minutes | This is a unique anonymous session identifier cookie set by Microsoft Application Insights software to gather statistical usage and telemetry data for apps built on the Azure cloud platform. |
| attribution_user_id | 1 year | This cookie is set by Typeform for usage statistics and is used in context with the website's pop-up questionnaires and messengering. |
| FPID | session | Google Tag Manager sets this cookie for server-side tagging. |
| FPLC | session | Google Tag Manager sets this cookie for tracking between domains. |
| ln_or | 1 day | Linkedin sets this cookie to registers statistical data on users' behaviour on the website for internal analytics. |
| MUIDB | 1 year 24 days | Bing sets this cookie to determine how the user uses the website and any advertising that the end user may have seen before visiting the said website. |
| vuid | 2 years | This domain of this cookie is owned by Vimeo. This cookie is used by vimeo to collect tracking information. It sets a unique ID to embed videos to the website. |
| Cookie | Duration | Description |
|---|---|---|
| __cf_bm | 30 minutes | This cookie is set by CloudFare. The cookie is used to support Cloudfare Bot Management. |
| _EDGE_S | session | Bing sets this cookie to display map content using Bing Maps. |
| _EDGE_V | 1 year 24 days | Bing sets this cookie to display map content using Bing Maps. |
| _gaexp | 23 days 11 hours 9 minutes | Google Optimize sets this cookie to determine a user's inclusion in an experiment and the expiration of experiments a user has been included in. |
| aka_debug | No description | |
| bcookie | 2 years | This cookie is set by linkedIn. The purpose of the cookie is to enable LinkedIn functionalities on the page. |
| cfid | 20 days 2 hours | Used in conjunction with cftoken this cookie helps to uniquely identify a client device (browser) to enable the site to maintain user session variables. |
| lang | session | This cookie is used to store the language preferences of a user to serve up content in that stored language the next time user visit the website. |
| li_gc | 5 months 27 days | Linkedin set this cookie for storing visitor's consent regarding using cookies for non-essential purposes. |
| lidc | 1 day | This cookie is set by LinkedIn and used for routing. |
| Cookie | Duration | Description |
|---|---|---|
| ADRUM_BTa | This cookie is used to optimize the visitor experience on the website by detecting errors on the website and share the information to support staff. | |
| sync_active | never | This cookie is set by Vimeo and contains data on the visitor's video-content preferences, so that the website remembers parameters such as preferred volume or video quality. |
| YSC | session | This cookies is set by Youtube and is used to track the views of embedded videos. |
| Cookie | Duration | Description |
|---|---|---|
| _gat_UA-21273952-1 | 1 minute | No description |
| _hjAbsoluteSessionInProgress | 30 minutes | No description |
| _hjFirstSeen | 30 minutes | No description |
| _hjid | 1 year | This cookie is set by Hotjar. This cookie is set when the customer first lands on a page with the Hotjar script. It is used to persist the random user ID, unique to that site on the browser. This ensures that behavior in subsequent visits to the same site will be attributed to the same user ID. |
| _hjIncludedInPageviewSample | 2 minutes | No description |
| _hjIncludedInSessionSample | 2 minutes | No description |
| _hjTLDTest | session | No description |
| A3 | 1 year | No description |
| aff | 1 month | No description |
| AnalyticsSyncHistory | 1 month | No description |
| asst | 30 minutes | No description |
| AWSALB | 7 days | AWSALB is a cookie generated by the Application load balancer in the Amazon Web Services. It works slightly different from AWSELB. |
| cass | 2 hours | No description |
| cftoken | 20 days 2 hours | Used in conjunction with cfid this cookie helps to uniquely identify a client device (browser) to enable the site to maintain user session variables. |
| CONSENT | 16 years 10 months 12 days 14 hours 5 minutes | No description |
| gdId | 10 years | No description |
| gdsid | 6 hours | No description |
| GSESSIONID | 2 hours | No description |
| MXP_TRACKINGID | 30 years | No description |
| player | 1 year | No description |
| RUL | 1 year | RUL writes these cookies: GDPR - your consent that is collected on this page (valid for one year). PHPSESSID - session identifier for repository part of RUL, valid as long as the browser window is open (valid for session duration). random number - session identifier for content part of RUL, valid as long as the browser window is open. startSz - font size. This cookie is written only if you change the font size using ""Bigger font"" or ""Smaller font"" link. dkUser - written only when you log-in, which changes the display of certain page elements (valid for session duration). Above mentioned cookies are mandatory for our website to function properly. |
| SameSite | No description | |
| site | No description | |
| trs | 1 year | No description |
| UserMatchHistory | 1 month | Linkedin - Used to track visitors on multiple websites, in order to present relevant advertisement based on the visitor''s preferences. |
| Cookie | Duration | Description |
|---|---|---|
| __adal | session | Description is currently not available. |
| _hjIncludedInSessionSample_2773626 | 2 minutes | Description is currently not available. |
| _hjIncludedInSessionSample_66910 | 2 minutes | Description is currently not available. |
| AWSALBTG | 7 days | No description available. |
| AWSALBTGCORS | 7 days | No description available. |
| ccc | 1 month | Description is currently not available. |
| is_eu | never | No description available. |
| m | 1 year 1 month 4 days | No description available. |
| Path | session | Description is currently not available. |
| SRCHHPGUSR | 1 year 24 days | No description available. |
| tf_respondent_cc | 6 months | Description is currently not available. |
| WFESessionId | session | No description available. |