Register to reply

Sympathetic nervous system activates major skeletal muscle?

by jennifer1585
Tags: activates, major, muscle, nervous, skeletal, sympathetic
Share this thread:
jennifer1585
#1
Jan4-14, 05:55 PM
P: 1
Is is true that "Sympathetic nervous system activates your heart and major skeletal
muscles?

Thank you for your help!
Phys.Org News Partner Biology news on Phys.org
Team defines new biodiversity metric
Danish museum discovers unique gift from Charles Darwin
DOE 'Knowledgebase' links biologists, computer scientists to solve energy, environmental issues
KCC2
#2
Jan4-14, 06:28 PM
P: 15
Input from sympathetic nervous system can increase your heart rate (and probably action potential conductance too) yes. Heart has a base beating rate caused by autorhythmic cells in SA node, which is actually higher than your normal rest pulse. That's because parasympathetic input can decrease heart rate, and parasympathetic input is stronger than sympathetic at rest.

Sympathetic nervous system doesn't directly affect skeletal muscles, but it does dilate blood vessels near skeletal muscles, for example.


Register to reply

Related Discussions
Skeletal system Biology 1
Action potential of a skeletal muscle fibre,where is calcium? Biology 2
Difference in smooth and skeletal muscle cell organization? Biology, Chemistry & Other Homework 0
Nervous system Biology 1
Nervous system Biology 1