Talk:Muscle contraction

Multiple fiber summation

Article quote: "When a weak signal is sent by the CNS to contract a muscle, the smaller motor units, being more excitable than the larger ones, are stimulated first. As the strength of the signal increases, more motor units are excited in addition to larger ones".

I find the last sentence to be unclear. What does "when the strength of the signal increases" refer to? An increased frequency? Or amplitude? Or Number of firing neurons?

Can anybody help?

Cardiac Muscle

What is the citation for the paper saying that the temporal summation of 30,000 Ca++ ions is what causes the intracellular calcium increase. Obviously more Ca would cause a higher concentration, but where does the number 30,000 come from

Pumwi23 (talk) 03:55, 10 October 2023 (UTC)

Wiki Education assignment: BYU-Biophysics, CELL 568

This article was the subject of a Wiki Education Foundation-supported course assignment, between 5 September 2023 and 14 December 2023. Further details are available on the course page. Student editor(s): Pumwi23 (article contribs). Peer reviewers: Smbiophysics, Jwiggler.

— Assignment last updated by Smbiophysics (talk) 16:40, 19 October 2023 (UTC)

Wiki Education assignment: Behavioral Neuroscience

This article was the subject of a Wiki Education Foundation-supported course assignment, between 9 September 2025 and 12 December 2025. Further details are available on the course page. Student editor(s): Cheeseburger2.0 (article contribs).

— Assignment last updated by Cheeseburger2.0 (talk) 03:23, 6 October 2025 (UTC)