× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
5
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
This topic contains 1 attachment.
Home Q & A Board Biology-Related Homework Help General Biology
New Topic  
ansouza ansouza
wrote...
Posts: 3
Rep: 0 0
11 years ago
i cant find out these last two questions pleasee help

when a long duration stimulus is applied, what two determinants of an action potential refractory period are being overcome?

suggest several ways to pharmacologivally overcome a neurons refractory period and therby increase the action potential frequency?
Read 5171 times
18 Replies

Related Topics

Replies
wrote...
#1
Valued Member
11 years ago
Here
 Attached file 
Thumbnail(s):
You must login or register to gain access to this attachment.
lorilazz,  bio_man,  mlamlheat821,  elsaa,  lovely1,  cait618,  Swanny,  bnicbeck
Sunshine ☀ ☼
wrote...
#2
11 years ago
wow what a great forum.
wrote...
#3
Educator
11 years ago
Quote from: Offeriniarp (11 years ago)
wow what a great forum.

Sign up.
wrote...
#4
11 years ago
Quote from: colleen (11 years ago)
Here

Thanks for the chart.  It really help me. 
wrote...
#5
11 years ago
thanks for the help!
wrote...
#6
11 years ago
Thank you!
wrote...
#7
11 years ago
I think it has to do with becoming more hyperpolarized  to get back to its -70 mV.. In order for the na+ channels to open again it has to get back to being right around zero.
wrote...
#8
11 years ago
really great chart
wrote...
#9
11 years ago
Thanks
wrote...
#10
11 years ago
The complete repolarization of the cell membrane potential is being overcome, without making the cell pass through hyperpolarization to get back to its -70mV.. It just gets below 0, in order for the Na+ channels to be able to open again.. This way you will have a high frequency of action potentials..
wrote...
#11
11 years ago
Thanks so much for all this help.  I don't know how else I would understand any of this. Slight Smile
wrote...
#12
11 years ago
thanks
wrote...
#13
11 years ago
Thanks this chart was great when my physioex wouldn't work
  New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1257 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 475
  
 255
  
 66
Your Opinion
What's your favorite funny biology word?
Votes: 328
Previous poll results: Where do you get your textbooks?