# List of my favourite resources on YouTube to learn anatomy

**URL:** <https://forum.livingwitheagle.org/t/list-of-my-favourite-resources-on-youtube-to-learn-anatomy/10249>\
**Category:** General\
**Created:** [October 26, 2021, 7:21am UTC](https://forum.livingwitheagle.org/t/list-of-my-favourite-resources-on-youtube-to-learn-anatomy/10249 "2021-10-26T07:21:02Z")\
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**Author:** ![vdm](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.livingwitheagle.org/vdm/32/4794_2.png) [@vdm](https://forum.livingwitheagle.org/u/vdm)\
**Post date:** [April 15, 2024, 5:32am UTC](https://forum.livingwitheagle.org/t/list-of-my-favourite-resources-on-youtube-to-learn-anatomy/10249/76 "2024-04-15T05:32:02Z")

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[![](https://img.youtube.com/vi/fjBazi1CLIs/hqdefault.jpg "The range of motion of the Spine") ](https://www.youtube.com/watch?v=fjBazi1CLIs)

According to this video,

C0/C1 flexion is 10°, extension 17°  
C0/C7 flexion is 64°, extension 63°

Which means 27/127 ~= 21% of the whole neck flexion/extension happens at the C0/C1 level.

Might be accurate, though other sources mention up to 50% ([https://www.physio-pedia.com/Cervical\_Vertebrae](https://www.physio-pedia.com/Cervical_Vertebrae)).

Other sources mention these numbers:

* * *

> **[Cervical Spine Functional Anatomy and the Biomechanics of Injury Due to...](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1250253/)**
>
> Objective: To provide a foundation of knowledge concerning the functional anatomy, kinematic response, and mechanisms involved in axial-compression cervical spine injury as they relate to sport injury.Data Sources: We conducted literature searches...

> The cervical spine’s range of motion is approximately 80° to 90° of flexion, 70° of extension, 20° to 45° of lateral flexion

> Normal flexion to hyperextension at the atlanto-occipital _[C0/C1]_ joint ranges from approximately 15° to 20°

* * *

> **[Examining the Range of Motion of the Cervical Spine: Utilising Different...](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8075604/)**
>
> This paper outlines a summary of examination technique to identify the range of movement of the cervical spine. Due to common difficulties in obtaining tools for cervical examination within the district, a standardised compilation of...

> Normal cervical flexion is usually approximately 80º. […] Normal cervical extension is usually 50°. Total range of cervical motion from full flexion to full extension should be 130°

> Cervical Lateral Flexion […] Normal flexion from starting point on either side is 45° and the total angle of maximal lateral head flexion should be 90°

* * *

[https://www.ajronline.org/doi/pdf/10.2214/ajr.130.2.317](https://www.ajronline.org/doi/pdf/10.2214/ajr.130.2.317)  
(offline copy: [ajr.130.2.317.penning-1978-normal-movements-of-the-cervical-spine.pdf](https://forum.livingwitheagle.org/uploads/short-url/mUWhTn0MBPYO0AKekqYcX6LAve9.pdf) (1.3 MB) )

 ![image](https://canada1.discourse-cdn.com/flex027/uploads/ben_eagle/original/2X/9/9bfec6bea61f4b3de66c4721488e6cc2c7ede012.png)

Now, this is getting interesting. It seems C1/C2 **also** may have significant flexion/extension range.

I will leave it here.

Also, this in particular demonstrates the (approximated) C0/C1 motion

[![](https://img.youtube.com/vi/Ocp5XGW3z4k/hqdefault.jpg "The Skull in Motion - Atlas and Occiput") ](https://www.youtube.com/watch?v=Ocp5XGW3z4k)

The whole neck flexion/extension

[![](https://img.youtube.com/vi/9njIj0uPrYM/maxresdefault.jpg "Flexion and extension of the neck.") ](https://www.youtube.com/watch?v=9njIj0uPrYM)

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