Create an account
Site of muscle attachment that is more stable.
The origin has the least amount of movement during muscle contraction.
Thin, broad, superficial muscles
Found in the fascia just beneath the skin
Little or no attachment to bones
Serve to twitch the skin
Loss or impairment of motor (muscular) function resulting from a lesion of nervous or muscular in origin
Clostridium tetani - Tetanus
Produces the toxin tetanospasmin
Inhibits some of the nerve impulses from reaching the neuromuscular junction
Clostridium botulinum - Botulism
Interferes with the release of acetylcholine
Nerve can not contract muscle
Please allow access to your computer’s microphone to use Voice Recording.
Having trouble? Click here for help.
We can’t access your microphone!
Click the icon above to update your browser permissions and try again
Reload the page to try again!Reload
Press Cmd-0 to reset your zoom
Press Ctrl-0 to reset your zoom
It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.
Please upgrade Flash or install Chrome
to use Voice Recording.
For more help, see our troubleshooting page.
Your microphone is muted
For help fixing this issue, see this FAQ.
Star this term
You can study starred terms together