nerves control muscle in nervous system Flashcards
what is each muscle fiber connected to
nerve fiber
what does it take for an entire muscle to move
concerted effort from many nerves and fibers and use of ATP to power contraction and relaxation
what happens to myosin and actin filaments when muscle is relaxed
they aren’t attached
what happens to myosin and actin filaments when muscle contract
myosin and actin bind and pull together
what does the nervous system do when the brain wants to send a message to a particular part of the body
nervous system sends signal to a muscle
when myosin and actin proteins slide past each other what does it create
creating either a contraction or a relaxation of the muscle
what movements are responsible for all muscle movement
actin and myosin
how do muscles respond to nerve impulses in specific ways
receptors in muscles allow them to receive a signal and respond with the appropriate magnitude and movement
what can the signal and response can be disrupted by
disorders ranging from muscle strain and sprain to muscular dystrophy