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The neurotransmitters of a neutron enable a nerve impulse to do what?
Neurotransmitters in a neuron allow a nerve impulse to be transmitted from one neuron to another by crossing the synapse and binding to receptors on the receiving neuron. This triggers an electrical or chemical signal to continue the nerve impulse along the neural pathway.
What minerals are needed for muscle contraction and conduction of nerve impulses?
Minerals such as calcium, magnesium, sodium, and potassium are essential for muscle contraction and nerve impulse conduction. Calcium is particularly important for initiating muscle contractions and transmitting nerve impulses, while magnesium, sodium, and potassium help regulate muscle relaxation and contraction as well as nerve impulse transmission.
What is stimulation of a muscle by an impulse transmitted by a motor nerve?
Stimulation of a muscle by an impulse transmitted by a motor nerve refers to the process where a nerve signal triggers muscle contraction. When a motor neuron is stimulated, it releases neurotransmitters at the neuromuscular junction, leading to depolarization of the muscle cell membrane. This depolarization causes calcium ions to be released within the muscle fibers, ultimately resulting in the contraction of the muscle. This process is essential for voluntary movements and muscle coordination.
Where does the nerve impulse travel from the reflex arc?
The nerve impulse typically travels from the sensory neuron to the spinal cord, where it is processed by interneurons, and then to the motor neuron to elicit a response from the effector organ or muscle.
How long does it take for a nerve impulse to be transmitted across the synaptic cleft resulting in a downstream muscle contraction?
The transmission of a nerve impulse across the synaptic cleft typically takes around 1 to 2 milliseconds. When the nerve impulse reaches the axon terminal, neurotransmitters are released into the synaptic cleft, binding to receptors on the muscle cell membrane. This process triggers a cascade of events that lead to muscle contraction, usually occurring within a few milliseconds after neurotransmitter binding. Overall, the entire process from nerve impulse to muscle contraction can occur in less than 10 milliseconds.
What causes a nerve impulse move along the nerve fiber?
Electrical diferences.
What cause a nerve impulse move along the nerve fiber?
Electrical diferences.
When a muscle contracts it does what?
In order for a muscle to contract, the brain sends a nerve impulse to the muscle it wants to contract. The nerve impulse triggers the potassium inside the muscle fiber cell to switch places with the calcium outside the cell wall, thereby feeding the cell and contracting the muscle. A second nerve impulse from the brain triggers the calcium to switch places with the potassium, releasing the contracted muscle.
What must be present for a nerve impulse to begin?
each nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip.a nerve impulse travels along the neuron in the form of electrical and chemical signals.Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineAcetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction.
What is the difference between synaptic and nerve impulse transmission?
Synaptic transmission is chemical, while nerve impulse or axonal transmission is electrical.
What steps involved in transmitting the impulse from one neuron to another and then to the muscle fiber?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineEach nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip.a nerve impulse travels along the neuron in the form of electrical and chemical signals.Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction
What is the electrical impulse?
An electrical impulse is a rapid and temporary change in the electrical potential across the membrane of a neuron or muscle cell, allowing for the transmission of signals. In neurons, this impulse, known as an action potential, occurs when specific ion channels open, causing sodium ions to rush into the cell and depolarizing the membrane. This change propagates along the axon, enabling communication between nerve cells or triggering muscle contraction. Ultimately, electrical impulses are essential for the functioning of the nervous system and muscle activity.
When a change in the environment that initiates the transmission of an electrochemical charge along a neuron is known as?
A momentary change in electrical potential on the surface of a cell, especially of a nerve or muscle cell, that occurs when it is stimulated, resulting in the transmission of an electrical impulse. &/or "nerve impulses" or "spikes".
Macroscopic neurology - trace impulse macroscopically through the nerveous system from the brain to the muscle?
Brain send the message via nerve impulses involving neurons which use the neuro-transmitter AcetylcholineEach nerve impulse begins in the dendrites of a neuron's. the impulse move rapidly toward the neuron's cell body and then down the axon until it reaches the axon tip.a nerve impulse travels along the neuron in the form of electrical and chemical signals.Acetylcholine- a neurotransmitter released at the neuromuscular junction triggers a muscle action potential, which leads to muscle contraction
Which muscle trait is the ability to respond to a stimulus such as a nerve or hormone?
Muscle excitability is the ability to respond to a stimulus, such as a nerve signal or hormone, by generating an electrical impulse that leads to muscle contraction. This trait allows muscles to react to signals from the nervous or endocrine systems to produce movement.
Is the velocity of a nerve impulse greater than electrical conduction's?
yes
Do muscles contract in response to electrical signals?
Yes, muscles contract in response to electrical signals. When a nerve impulse (electrical signal) reaches a muscle fiber, it triggers the release of calcium ions within the muscle cell. This process initiates a series of interactions between actin and myosin filaments, leading to muscle contraction. Thus, electrical signals are essential for muscle movement and function.
