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Voluntary muscle contraction is controlled by the central nervous system. The brain sends signals, in the form of action potentials, through the nervous system to the motor neuron that innervates several muscle fibers.
Acetylcholine (ACh) is commonly secreted at neuromuscular junctions, the gaps between motor neurons and muscle cells, where it stimulates muscles to contract (by opening gated positive ion channels).
Harmony Will
Wiki User
∙ 11y agoAcetocholine is the neurotransmitter needed for muscle contraction
Wiki User
∙ 9y agoThe neurotransmitter used for muscle contraction is acetylcholine. It works by binding to a receptor on an adjoining cell which triggers responses in nerves and muscles.
Wiki User
∙ 11y agoIn skeletal muscles, the primary neurotransmitter involved is ACh.
In smooth muscles, they are:acetylcholine,
epinephrine, and
norepinephrine.
Wiki User
∙ 14y agoacetylcholine
Wiki User
∙ 13y agoacetylcholine
Wiki User
∙ 11y agoAcetylcholine
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What specific event initiates the contraction?
The specific event that initiates a muscle contraction is the release of calcium ions within the muscle cell. This triggers a series of chemical reactions that ultimately lead to the sliding of actin and myosin filaments, resulting in muscle contraction.
What ion initiates muscle contraction?
when you are working out and you are lifting a weight....
Role of ionic calcium in muscle contraction?
triggers neurotransmitter secretion, removes contraction inhibitor, and binds with troponin.
Neurotransmitter used to cause muscle contraction?
A neurotransmitter that causes muscle movement is called Acetylcholine. Acetycholine acts as on both the central nervous system and the peripheral nervous system.
Is calcium a neurotransmitter responsible for muscle contraction?
Potassium deficiency more likely, but yes.
Each heart contraction begins in a small group of cardiac muscle cells called?
The sinoatrial node is the small group of cardiac muscles that initiates each heart contraction.
Which neurotransmitter is responsible for the excitatory phase of muscle contraction a. dopamine b. serotonin c. GABA d. none of the above?
Acetyl Choline
Whats the name of the chemical in the muscular system that causes contraction?
There's more than one chemical that causes contraction. The neurotransmitter (usually acetylcholine) is released from the nerve and excites the muscle. There is a change in calcium, sodium and potassium ion concentrations. ATP is used. All of these work together to produce a muscle contraction.
What is muscle contraction without muscle shortening is what kind of contraction?
Isometric contraction
What type of excitatory neurotransmitter is secreted by motor neurons innervating skeletal muscle?
Acetylcholine is the excitatory neurotransmitter released by neurons innervating skeletal muscles. Acetylcholine release stimulates muscle contraction by acting at the nicotinic-acetylcholine receptor on the surface of the muscle cell.
Constant contraction of a muscle is?
constant contraction of a muscle is called the muscle tone
What is acetylecholine?
Acetylcholine is a neurotransmitter that helps transmit electrical nervous impulses from one nerve to another. Commonly found when a nerve terminates in a muscle (the neuromuscular junction) to cause contraction.
