If you lose nerve connection to skeletal muscle, the muscle cannot function (think about spinal cord injuries). But how exactly does the neuron communicate to the muscle? That's exactly what this video is about -- it's a process called 'excitation -contraction coupling.' Don't you want to know how it works? Of COURSE you do!

#nursingstudent #anatomyandphysiology #physiology #muscularsystem #paramedicschool

Video Chapters:
Intro: 0:00
Video overview: 0:04
What is excitation-contraction coupling? 0:33
Microanatomy: 1:18
Neuromuscular junction: 1:26
My simplified cartoon: 1:36
Muscle cell at rest: 4:06
Somatic motor neuron fires: 4:13
Nicotinic receptors open: 4:29
Muscle cell depolarization: 4:55
DHP receptor changes shape, opens Ryr channel: 5:14
Ca++ efflux from SR: 5:34
A note on calsequestrin: 6:14
Ca++ initiates muscle contraction: 6:46
The role of Ca++ in the sliding filament model: 6:52
Summary: 8:05
Outro: 8:58

FREE TEXTBOOK:
OpenStax Anatomy & Physiology 2e: [ Ссылка ]

This content summarizes OpenStax Anatomy and Physiology 2e, Section 10.2

Penguin Prof Staff:
Organic chemistry consultant in residence: FabioChem (Fabio Agnelli, Ph.D)
Happiness Coordinator: Flops the Penguin
Content Creator, Producer, Editor and Narrator: The Penguin Prof (Valerie Pennington)

Let's Connect!
[ Ссылка ]

Want more Penguin Prof?
Subscribe: [ Ссылка ]
FB Page: [ Ссылка ]
Instagram: [ Ссылка ]
TikTok: [ Ссылка ]
Twitter: [ Ссылка ]
Web: [ Ссылка ]
LinkedIn: [ Ссылка ]

Videos mentioned:
The Action Potential: [ Ссылка ]
Equilibrium Potentials and Driving Force: [ Ссылка ]
Basic Signal Transduction: [ Ссылка ]

Popular Videos:
Cell Membranes EXPLAINED: [ Ссылка ]
Making Happy: Serotonin, Antidepressants and Psychedelics: [ Ссылка ]
Take Great Notes: [ Ссылка ]
Should You Use Your Textbook? [ Ссылка ]
Enzyme Regulation Explained: [ Ссылка ]
Homeostasis and Feedback: [ Ссылка ]
Redox Relief: [ Ссылка ]
Levels the Protein Structure: [ Ссылка ]
How Hormones Work: [ Ссылка ]
Chemistry Basics Part I: [ Ссылка ]
Chemistry Basics Part II: [ Ссылка ]
Understanding Chemical Structures: [ Ссылка ]
Blood Types: ABO and Rh: [ Ссылка ]

All Rights Reserved © 2024, The Penguin Prof

Affiliate Links
Below you'll find a list of products or services that I truly believe in, support and pay for. If you click them, a small amount of change goes to support this channel.

Rocketbook: Use and re-use paper, scan and digitize everything and send your stuff wherever you need it: [[[ Ссылка ]]([ Ссылка ])]

Penguin Prof is Supported by Audible!
I've been an Audible addict since 2013. Audible is the premier provider of digital audiobooks. Audible has over 150,000 titles to choose from in every genre. Audible titles play on iPhone, Kindle, Android and more than 500 devices for listening anytime, anywhere. Click to learn more and download a FREE audiobook of your choice! [ Ссылка ]

Discounts for Camtasia (my favorite video editor) and Snagit (my favorite screen annotation software): [ Ссылка ]

Descript: Simply the EASIEST and FASTEST way to produce transcripts and captions for your videos: [ Ссылка ]

Royalty-Free Music by Epidemic Sound
If you're looking for an amazing library of royalty-free music, as well as over 60,000 sound effects, look no further than Epidemic Sound. I've been a member for years and I love being able to find the perfect track for every project. Help support my channel if you're interested and sign up with this link:
[ Ссылка ]

свернуть