VERTEBRAL COLUMN ANATOMY (2/2) - Ligaments and the Spinal Cord
Three major ligaments of the spine that allow flexion and extension of the spine while keeping the bones aligned - the ligamentum flavum, anterior longitudinal ligament, and the posterior longitudinal ligament. The anterior and posterior longitudinal ligaments are continuous bands that run from the top to the bottom of the vertebral column and prevent excess movement. The ligament flavum attaches between lamina of each vertebra.
Some additional ligaments I’d like to point out are the intertransverse ligament, the supraspinous ligament, and the interspinous ligament. The intertransverse ligaments stretch between the transverse processes of the spine. The supraspinous ligament is found along the vertebral column, connecting the tips of the spinous processes from the cervical vertebra to the sacrum. At the seventh vertebra, the supraspinous ligament is continuous with the nuchal ligament, which runs from the seventh vertebra to the external occipital protuberance of the skull. The interspinous ligaments are thin, membranous ligaments stretching between adjacent spinous processes.
Finally, I’d like to briefly discuss the spinal cord, which is floating in cerebrospinal fluid within the dural tube, which is inside the vertebral arch. The spinal cord is about the thickness of your thumb. At around 18 inches long, it runs from the brainstem to the 1st or 2nd lumbar vertebra within the spinal canal, ending in the conus medullaris. Extending from the conus medullaris is the cauda equina - Latin for horse tail because it is a bunch of spinal nerves that very much looks like a tail. The cauda equina occupies the lumbar cistern - a space beneath the conus medullaris. The filum terminale extends from the end of the spinal chord and anchors it to the tailbone.
31 pairs of spinal nerves branch off from the spinal cord. Each spinal nerve has 2 roots - one ventral for motor impulses from brain, and one dorsal for sensory impulses to brain. Ventral and dorsal roots fuse to form spinal nerve, which exits the vertebral column via the intervertebral foramen between the vertebrae.
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love how you explain both parts of this topic, short and sweet :)
This is going to help me perform well on my Anatomy/Physiology final exam! Thank you so much!
Helped me conceptualise this a lot better than my lecture- thank you so so much!
Thank You So Much for these Informative Tutorial! ♥️🌷🕯
Thank you! Another great video!
these videos are going to help me pass my anatomy exam, very helpful!
@user-nl3nd1we2m
3 ай бұрын
did you passed you anatomy exam brooooo???😊
👍 vlog thank you so much👍👍👍❤️❤️❤️watching from Japan
Very useful..Can you post difference between existing and transiting nerve roots??
Thank u very much for your effort
Oh my days what a delicious video love it 🙃
Thanks you for making and sharing :)
You're too good at explaining these topics, ❤️
@sudipguha1656
2 ай бұрын
0:38
superb Info.
Very helpful!
Wow guys you helped me alot.
Thanks for this.
Thank you
Excellent
Sooooo helpful!!!!!!
Love the visuals, just need to be slower explanations. Good job!!
Quite helpful :)
Can you please do video about injection procedure(pain mgt) in vertebrae
where we can get the good explanation of vertebral joints...😟😞😞
Hi, can aging ligament cause pain and spinal cord compression
u r the besstttt
Very good work. Next time, could you write the Latin terms behind every English term? Would be very nice of you
@NeuralAcademy
4 жыл бұрын
Excellent suggestion :-) Will do!
Can you cover mitosis and meiosis division, and reproductive system, fertilization
Buenas noches Quisiera q lo pasen a castellano(españo)
من طلب العلا سهر الليالي .سبحان الله .خالي كان مدرس أول ثانوي كيميا يوم لما عرف بأنني قررت ألتحق بكلية الطب وبخ امي قالها جتك خيبه أنت قد مصاريف كلية الطب ماسألتش عنه