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Nerve impulses that originate in the central nervous system cause muscles to contract. Muscle fiber generates tension during the action of actin and myosin cross-bridge cycling. While under tension, the muscle may lengthen, shorten, or remain the same.
Dell Herzog
Kenya Carter
the lungs and the legs contract the heart for regular pulse that murmurs
Wiki User
∙ 13y agonerve fibers make the muscle to contract by releasing neurotransmitter called acetylenecoline the production makes sodium the get in to the muscle cell and release calcium giving it the final go for contraction for the the filaments to move myline grabs actin and pull it.
Wiki User
∙ 13y agocontraction? that would be when the baby is moving or your stimuli is responding to the babys stimuli. Its usually means your body is getting ready to have the baby
Wiki User
∙ 13y agopulse
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Does a heart run on electricity?
Yes. Electrical signals to the cardiac muscle causes the heart to relax and contract.
Which type of muscles causes the heart to contract and relax?
auto-rhythmic cardiac muscle
How is current electricity dangerous?
Current causes muscles to contract and that is dangerous especially if the heart muscle is affected.
Is the heart involuntary or voluntary?
the heart is and involuntary muscle because you cannot contract the muscle.
Why do they say that the heart is a muscle?
Because your heart is a muscle, a cardiac muscle. a muscles job is to contract an that is exactly what the heart does, it contracts to pump blood.
What is the specific function of the cardiac muscle?
contraction of the atria and ventricle of the heart, causes beating of heart.
What causes a muscle to lose its ability to contract?
Muscle loss. Have you not been eating?
What muscle contract without voluntary thought?
heart
Do all cardiac muscle fibers all contract at the same time?
No. The heart muscle contracts in sections, first the top (atrium) then the bottom (ventricle). But when it is working properly, the heart muscle fibers contract together in large groups.
What type of muscle is a heart?
The heart or "Cardiac muscle" is myogenic meaning that it will independently contract without a stimulus. The nerve impulses in the heart are merely to regulate the natural beat of the heart.
What Muscle cause contractions of the heart?
the lungs and the legs contract the heart for regular pulse that murmurs
Weak stimulation of a motor neuron causes the muscle to what?
contract weakly
