Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
16 Cards in this Set
- Front
- Back
|
What two proteins deal with skeletal contraction?
|
actin and myosin
|
|
|
During contraction actin and myosin _____ incrases
|
overlap
|
|
|
when stretched the actin and myosin _______ is decreased
|
overlap
|
|
|
this zone is myosin only?
|
H zone
|
|
|
when a contraction occurs the h zone becomes _____? the z disc moves in _____? and the sarcomere gets______?
|
narrow,closer,shorter
|
|
|
which protein gets narrow?
|
actin
|
|
|
which protein never moves/shortens?
|
myosin
|
|
|
myosin has 2 heads one is for___ the other is for ___?
|
ATP, binding w/ actin
|
|
|
this proteins head attaches and detaches?
|
myosin
|
|
|
ATP does what w/ myosin?
|
it detaches the head
|
|
|
the whole process of actin/mysoin is triggered by?
|
Ca
|
|
|
Ca is released from the?
|
terminal cisternae
|
|
|
there are three proteins that make up this?
|
tropomin
|
|
|
this sits on the myosin binding site?
|
tropomyosin
|
|
|
calcium binds with?
|
TnC
|
|
|
Calciums role is to?
|
change the shape and move troponin out of the way so myosin can attach
|
