Cardiovascular | Tunic Layers & Types of Capillaries

[@ginamascetti8810]

I'm literally using Ninja Nerd to get through my anatomy and micobiology this semester. Love this guy!

[@ASalfity]

Brief Table of Contents: Arteries - 0:40 Tunica Intima / Tunica Interna - 1:40 - Internal Elastic Lamina -- Marfan Syndrome -- Ehlers-Danlos Syndrome - 3:00 - Tunica Media -- Sympathetic Innervation 4:20 - External Elastic Lamina 5:20 - Tunica Externa -- Dense Irregular Connective Tissue --Vasa Vasorum blood vessels nourish tunica externa --- Tertiary Syphilis 7:35 - Veins (mostly the same layers as arteries with some different features) - Elastic Lamina Differences if present - 8:35 - Thinner Tunica Media - 9:05 - Thick Tunica Externa - Collapsed Lumen 10:25 - Capillaries - 11:45 - Sinusoidal Capillary -- Most Permeable - 14:25 - Continuous Capillary - 17:55 - Fenestrated Capillary -- Medium intercellular clefts -- Fenestration Pores You may wish to add this to the description or create your own more detailed version. Thanks for these videos.

[@muntasirbillah507]

just awesome! I'm a doctor and getting prepared for the post-graduation entry exam. Your videos are very much helpful to recollect my basics. Please never stop making videos for us. Lots of love from Bangladesh.

[@darencruz1451]

if yo still doing entry exams, you ain't a doctor yet.

[@kalenced8575]

I just wanna say...THANK YOU. What I love the most about your lectures is the way you speak with such tranquility and enthusiasm at the same time. You are giving me the motivation to study and when I study from your lectures I feel more concentrated because you don't put any pressure. It's like you are talking about something ordinary without making big deal out of it and that is very helpful. I feel less stressed when I hear your voice saying internal elastic lamina. Once again, big thanks!

[@JefferyBurger]

These videos are getting me through my Physiology class! Thank you Ninja Nerds!

[@dannichols6261]

Vein Structure: 7:36 (similar to Artery, but with differences in *thickness* of layers, due to *less pressure* ) Internal Elastic Lamina: very little or none: 8:00 Tunica Media: a lot thinner than in Artery: 8:38 Tunica Externa: *much thicker* than in artery (nearer the surface of body) : 9:05

[@salwa4201]

This channel is an absolute blessing to me. I didn't study physiology very well because I didn't like it initially. But professor Zach made it sooooo simple.🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼

[@dannichols6261]

Capillaries: three types: 10:30 Sinusoidal: 10:49 (details: *huge* intercellular *clefts* : 11:49) Continuous: 11:01 (small clefts, & pericytes; no clefts & *tight junctions* in BBB : 14:27) Fenestrated: 11:21 (medium size clefts, pores between cells?) 17:58

[@sheikhmuhiittamimisalim84]

tqsm

[@dannichols6261]

@@sheikhmuhiittamimisalim84 tqsm = Telemetry Quality Status and Monitoring???? (or is tqsm a 'new' way of saying tysm = thank you so much? I don't understand text-speak very well. Or is it just a strange typo?)

[@sheikhmuhiittamimisalim84]

Thank you so much😅

[@dannichols6261]

@@sheikhmuhiittamimisalim84 You're quite welcome! 😅

[@beckymyles]

Cannot stress how much your videos are helping get me through my veterinary degree!

[@vinayakkapatral4246]

Wonderful explanation! Very clear. Excellent Zach!

[@kristendecker-vanderwoude2868]

These videos are the best!!! I watch them to study, and I watch them for fun (because I too am an anatomy nerd 😂). Thanks!!!

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One of those rare videos of Ninja Nerd using glasses

[@musicmakkataei9705]

Triple gem bless you professor,............. This is a good service providing by u,...........love u from Sri Lanka

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His videos are the best.The way he explains everythings.... Everything becomes easy to learn and remember!!!

[@ketaarde632]

You’re just the BEST!!! Thank you for your amazing illustrations and well coordinated content!!!

[@dannichols6261]

Artery Structure: Endothelial cells: 0:50 subEndothelial layer: 0:54 Internal Elastic Lamina: 1:43 Smooth Muscle Cells: Tunica Media: 3:00 External Elastic Lamina: 4:24 Tunica Externa: Dense Irregular Connective Tissue: 5:21 Vasa Vasorum: 6:02 Capillaries: 10:30

[@kemmyaligawesa5444]

Thank u ninja nerds u guys are really helping us out here, Godbless the hard good work abundantly 😚

[@mohammedyusuf2363]

what aguy ,what alecturer ,i simply impressed the way he teaches ...........please add more histology lecutre

[@dannichols6261]

Thank you so so much for mentioning the Vasa Vasorum!!! I'd just learned about a 'quartet' of micro-anatomical structures, including it! Vasa Vasorum, Vasa Nervorum, Nervi Nervorum, and Nervi Vasorum. Vasa Vasorum: en.wikipedia.org/wiki/Vasa_vasorum Vasa Nervorum: en.wikipedia.org/wiki/Vasa_nervorum Nervi Nervorum: www.merriam-webster.com/medical/nervi%20nervorum Nervi Vasorum: en.wikipedia.org/wiki/Vascular_nerves

[@dannichols6261]

EXCELLENT!!! You are mostly very easy to hear and understand!

[@gabucha014]

Thank you!!! From DR🇩🇴

[@taramagar5463]

Thank you so much ninja nerds for this class.

[@jzoe7382]

You are very knowledgeable and amazing. Thanks for sharing

[@snoopygirl7877]

[@khaledking5408]

Man, I love you, this is really helpful

[@muhammadaamirkhan8299]

Outstanding lecture

[@_jeezi5594]

Your so friggin smart like I can’t even hardly keep up

[@ayk2086]

u fucking idiot, its not hard, just drop out of school if u cant even keep up with this.

[@kisshorekumar4331]

@@ayk2086 holy shizz dude, chill🤣🤣

[@garipovdin]

Hi. Can you make a video about pharmacokinetics? It would be great to hear it from you because your lectures are awesome

[@NguyenNguyen-cy7hp]

The books seldoms give a clearly distiction between the different types of capillaries, when they mention fenestrated and sinusoids capillaries interchangeably. This is confusing from time to time. (Even my professor at the medical faculty of Oslo says that capillaries in endocrine glands are both sinusoids and fenestrated). It's about time someone clear this up. Thanks a bunch.

[@NinjaNerdOfficial]

+Nguyen Nguyen I am more than happy to help! I'm glad that our channel is helping you. That is our goal!!!!!

[@stronger3381]

@@NinjaNerdOfficial Ninja nerd for president of the US

[@luckssj]

Have you looked into the Glycocalyx Structure and Mucosa lining that makes up the layers of the Endothelial cells.

[@محمدعبدالمجيدخلف]

I love you Ninja Nerd ❤️♥️☕

[@LucasSilva-kv3km]

great video

[@susanv1227]

Thank you, Professional Medical Ninja!

[@niyadeo7970]

Amazing!

[@angelathigpen1557]

Awesome help. Thanks

[@shalinibhatia690]

Very informative nice lectures

[@ahmedtoritek6611]

absolutely brilliant !

[@drsinaaalbazii629]

great job. but Sinusoidal .cap. have discontinued basement membrane, the Continuous cap. have tight junction between them.

[@pratiksharana3271]

Soo helpful.... Thanks for this.

[@dannichols6261]

A few questions: 1. Is the *internal elastic lamina* a part of the *tunica interna* ? 2. And can the *sub-endothelial layer* alternatively be termed the *basement membrane* ? And/or if basement membrane is a correct term, would it be more correctly said to be comprised of *both* the sub-endothelial layer *and* the internal elastic lamina? 3. And is the *external elastic lamina* a part of the tunica *media* , or of the tunica *externa* ? 4. At ~5:59, speaking about *dense irregular connective tissue* , the *closed captions* says, '...it's out as that neural arrangement...', but I suspect that's not what you said. What did you say?

[@dannyhany2767]

did you get your answers i have the same questions

[@MuhammadIbrahim-fc3of]

Nicely explained ❤️

[@ZeeCraftDz]

Ninja nerd the best

[@robbincocoa]

I love u ninja Ummah! Thank u for ur explanation

[@dusk0135]

A lot of thanks 💗💗💗💗

[@victoriab7742]

Awesome video!!

[@vedatekin97]

thanks ninja

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Thank you! :)

[@bhawnasuryawanshi2350]

Thank you so much

[@bushraliaqat9522]

Sir u r legend

[@VScriptedVizionairy]

Wow. Dope video.

[@samehibrahim5948]

Thank you 🙏❤️

[@davidnduli85]

Ninja nerd wakulekafye.. UNZA PHARM 2

[@kenanalkenani694]

Thank you

[@mayybemuse]

Thank you!

[@rethijja3331]

Awwwww he was so mini

[@sweetiarmy8382]

Thanks a lott😀😊😊😊

[@sujiewansuj3788]

wait doesnt the continous capillaries have the intercelluar clefts?? and the sinosoid capillaries allow for slow flow of blood and have macrophages??

[@ashnjm5251]

thank you!

[@kenanalkenani694]

Brilliant

[@kelseybrennan3127]

Is anyone else applying to PA school and super intimidated by the fact that this guy is a PA now? Like this is the level of person I'm competing with?? I feel doomed :(

[@charlespc8855]

It's not a competition Zach has tutoring experience and has backgrounds in biochemistry and neuroscience at master level. Seek out support from your classmates, lose the ego of competing with others and discuss your class content. You got this.

[@muhammadjunaidali769]

awesome

[@caitlynnichols3632]

What is the significance of the internal and external elastic lamina? How are they different from the 3 main tunic layers?

[@macchiathos]

what nourishes the vasa vasora?

[@raisin4406]

What's the difference between the intercellular clefts and the fenestration pores?

[@ezbuz]

Hello , my book says that the Tunica Externa is composed of Areolar CT. Is it possible that in some come vessel there is dense irregular ct, while in other vessels there is areolar ct? Or is it one of those things in biology that has yet to have solid backing so there's not a consensus as to which ct the tunica externa is composed of? ty

[@فطم-ر3خ]

THANK u 🙏🙏🙏🙏🙏

[@usmanlegend2471]

Hi there sir Is receptor are organ or not?

[@slowdive4907]

My hero 🎉academia

[@lazarusz1738]

❤❤❤

[@ahmedburhan-mk2lk]

❤

[@bobbya9949]

Why is the vein's Tunica Externa thicker than the artery's?

[@_jeezi5594]

I don’t think he meant to make it look like that. If anything and artery would have a thinker tunica externa because of the high pressure.

[@dannichols6261]

I googled, and found, "The tunica externa is often thicker in veins to prevent collapse of the blood vessel and provide protection from damage *since veins may be superficially located.* I found that at: med.libretexts.org/Bookshelves/Anatomy_and_Physiology/Book%3A_Anatomy_and_Physiology_(Boundless)/18%3A_Cardiovascular_System%3A_Blood_Vessels/18.1%3A_Blood_Vessel_Structure_and_Function/18.1A%3A_Blood_Vessel_Structure

[@dannichols6261]

@@_jeezi5594 Your reasoning makes sense, but the fact is it's thicker & he did mean to make it show thicker. He didn't explain why that I heard, but I found, "The tunica externa is often thicker in veins to prevent collapse of the blood vessel and provide protection from damage since veins may be superficially located.".

[@darleen6258]

Very beutiful

[@lujeinibrahim4006]

مكنه والله 😂❤️

[@الحاجبالمنصور-ظ7ر]

8:08 *low

[@mertmogulbay7259]

öz abim

[@KhadijaUmar-j3y]

💓💓🙏🙏

[@mae0305]

Where is the tunica interna of the capillaries????????????

[@patient3841]

D

[@countrychickkk6]

I mean my god he's so good looking its hard to concentrate....

[@ayk2086]

not rlly..................hes an average guy

[@sassytrini]

He is. I watched some of his other videos with no problems but this particular video has me very distracted 😅. I was scrolling through to see if anyone else was having this problem lol.

[@patient3841]

G

[@patient3841]

O

[@birhatyouns2004]

❤❤

[@patient3841]

O