Action Potential Flashcards
1
Q
1) thinking portion of the brain sends a message to perform ________ to the _________.
A
Action
Primary motor cortex
2
Q
2.) The upper motor neurons then fire an action potential which_____.
A
Releases neurotransmitter
3
Q
- The dendrites of the lower motor neuron ______.
A
Receives the transmitter
4
Q
4.) lower motor nueron fires an action porential to release_____.
A
Acetlycholine at the neuromuscular junction
5
Q
5.) the action potential travels thru _______.
A
T-tubules which causes the release of calcium from the terminal cisternae.
6
Q
6.) the calcium binds to
A
Troponin
7
Q
7) troponin pulls and
A
Moves the tropomyesin
8
Q
8) the binding site is now free for
A
Myosin to bind to actin
9
Q
9) the actin uses ______.
A
1 molecule of ATP to contract
10
Q
10) when the action is done the actin needs _____.
A
1 molecule of ATP to relax
