Flashcards in muscles Deck (19)
ATP is required to
release the myosin head after the power stroke.
energize the myosin for the next power stroke.
run Na/K and Na/Ca pumps
the power stoke causes the ..... to shorten
once the active site is revealed on the actin filament, a cross bridge forms with the head of the
the power stoke occurs when the head of the ... filament flexes
troponin and tropomyosin proteins are bound together with....to make the "thin" filament.
the cell membrane which contains receptors for ATP and channels for Na/K exchange.
stimulation of the cell causes calcium to be released from the .... where it will then bind with troponin/ tropomyosin.
actin is the ... filament shaped like a "string pearls"
is shaped like a "golf club"
ion exchange causes an electrical current to form
transverse tubules carry
sarcoplasmic reticulum stores .... in the sarcomere
the "cross bridge" is a connection between
actin and myosin
the energy from ATP is required to separate myosin from actin
Ca++ combines with.... to cause "lift off" from the active site on actin
...motor nerves are voluntary muscle nerves.
more cross bridge formation results in a
...muscle requires nerves to initiate contraction