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According to the sliding filament model, when muscles contract,a. sarcomeres shorten.b. myosin heads break down ATP.c. actin slides past myosin.d. the H zone disappears.e. All of these are correct.
e
Biology
Chapter 39
Locomotion and Support Systems
Animal Form and Function
The Nervous System
Sensory and Motor Mechanisms
Bridgewater State University
Millikin University
University of Pennsylvania
Lectures
0:00
In chemistry and physics, …
In biology, the elements o…
01:24
As ADP and ? are released …
00:42
When muscles contract,…
01:01
A sarcomere shortens when …
00:22
Each myosin head hasa.…
00:48
During muscle contraction,…
00:37
The thick filaments of a m…
02:00
In a muscle fiber,a. t…
01:14
00:46
00:36
In relaxed muscle, the myo…
everybody. This is Ricky and say I'm gonna be walking through problem 13 from Chapter 39 this questions asking us about the sliding filament model. So this model explains the dynamics behind muscle contraction. Um, contraction leads to short movie of circum ears and Sark Amir's air, The functional units of muscle, Um, and from the micro micro level, Uh, this is occurring because of something called the cross Berg cycle, which is, like the use of my sin actin cross bridges and a teepee fuel muscle contraction. And ultimately, this leads to H sound. Uh, the, um th sound of, sir. Come here. Two decrease in mud. So I have this video was helpful. Um, and I will see you on the next.
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