Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Ch11 Musclar tissue1

microscopic anatomy of skeletal muscle

QuestionAnswer
sarcoplasmic reticulum a reservoir of calcium ions; it has gated channels in its membranes that allow a flood of calcium ion into the cytosol where it activates muscle contraction.
A T tubule and its associated two terminal cisternae constitute a triad
contractile proteins Myosin and actin are called contractile proteins because they accomplish the shortening of the muscle fiber
regulatory proteins Tropomyosin and troponin are called regulatory proteins because they act like a switch to determine when the fiber can contract or not contract
The action of these regulatory proteins depends on the availability of ___________, which bind to troponin. calcium ions
Dystrophin an enormous protein located between the sarcolemma and the outermost myofilaments; it links actin filaments to a peripheral protein on the inner face of the sarcolemma.
A band Dark bands that consist of thick filaments lying side by side that partly overlap the thin filaments
H band the lighter area is the A band contains thick filaments only
M line dark band in center of an H band, where myosin bands connect
I band light band consists of thin filaments only but isbisected by a dark narrow Z disc (Z line)
Z disc (Z line) which provides anchorage for the thin filaments and elastic filaments.
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards