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Afferent nerves
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∙ 12y ago
Wiki User
∙ 12y agosynapse
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When you want to move your arm your brain sends a message where does the message go?
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 conducting unit of the nerve tissue?
The axon is the conducting part of the neuron. It conducts the impulse from the cell body to the terminals, where ion channels open in response to the impulse, mediators are activated, neurotransmitter crosses synapse and attaches at the post-synaptic membrane, opening the ion channels there and depolarizing the cell, and propagating the impulse towards another cell body via the post-synaptic cell's axon.
In seed plants the sperm make it to the egg via?
By swimming in watery fluid through the neck of archegonium the sperm reaches to the egg in seedless plants.
What cells are responsible for the myelination of neurons in the cns?
In the central nervous system, oligodendrocytes make the myelin sheaths around axons via cytoplasmic extensions. In the peripheral nervous system. The Schwann cells perform the same function but the entire cell wraps around a portion of the axon.
Depolarization of the SA node occurs during which phase?
SA node: P waveUnder normal conditions, electrical activity is spontaneously generated by the SA node, the physiological pacemaker. This electrical impulse is propagated throughout the right atrium, and throughBachmann's bundle to the left atrium, stimulating the myocardium of both atria to contract. The conduction of the electrical impulse throughout the left and right atria is seen on the ECG as the P wave. As the electrical activity is spreading throughout the atria, it travels via specialized pathways, known as internodal tracts, from the SA node to the AV node.
What nervous system controles the nerves that branch out from the central nervous system?
The CNS connects via the spinal cord to the PNS (peripheral nervous system).
What is the portion of the neuron that accepts incoming impulses?
The receptor is the part of the neuron (usually a dendrite) that detects a stimulus. Dendrites are extensions of the main cellular body of the neuron called the soma; the impulse is passed on to another neuron at the other end, which is called the axon. Neurons transmit impulses to each other via electro-chemical connections to each other that are known as synapses.
Sensory neurons enter the spinal cord via what root?
ventral root yo
What part of central nervous system link brain and peripheral nervous system?
it is connected because the centeral nervous system sends infor mation to for example move an arm or th do some sort of action in order to respond to a signal triggered by your centeral nervous system- Dr. Park
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
How does vibration cause sound?
Vibrations alter the density of the air (or other medium) around them. They do this as a wave. When the wave reaches a person's eardrum it makes it vibrate to the rhythm of the vibration. This is conducted to the brain via an electrical impulse and we hear it as sound.
Does vibrations cause sounds?
Vibrations alter the density of the air (or other medium) around them. They do this as a wave. When the wave reaches a person's eardrum it makes it vibrate to the rhythm of the vibration. This is conducted to the brain via an electrical impulse and we hear it as sound.
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.
How is an impulse communicated from nerve cell to nerve cell?
Via chemical messangers that cross the synapse.
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
Part one Trace the nerve impulse listing the steps in as much detail as possible from which your brain sends the message to the appropriate muscles to step up one step Include the steps involved?
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 Acetylcholine
If a batter reaches base via a bunt is it counted as a hit?
It is.
