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How does the structure of the sensory neurone maximise the speed of an impulse passing through it?
Wiki User
∙ 12y ago
it lets it go throu faster like a pump
Wiki User
∙ 12y ago
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A nerve impulse travels from one cell to another by passing from?
one axon to a dendrite...
What is the name of a structure for passing smoke?
Cylinder
How do livng things respond to stimuli?
There are two types of responses to stimuli. 1)Deep response which requires integration by the brain such as thinking. 2)Simple response which is done by reflex arc. The reflex Arc is consisted if receptor, sensory neuron, relay neuron, motor neuron and effector which is either muscle or gland. For example in humans. If your hand touches a hot object. Heat receptors in your hand will act as sensor, passing an impulse by generating action potential in the sensory neuron. The sensory neuron passes the impulse to along it till reaching the spinal cord passing the impulse to the relay neuron by a process called synapse. The relay neuron synapse with motor neuron to pass the impulse to it. The end of the motor neuron is connected to the bi-ceps muscle in the arm. As the impulse reaches the end of the motor neuron it passes impulse to the muscle ordering it to contract, thus the hand is removed away from stimulus. This process take a fraction of a second.
What is the structure and function of a nose?
It is the beginning part of the respiratory system that is involved in inhalation. The important functions of nose are to filter the atmospheric air before passing it further into the respiratory system and to provide the sense of smell.The structure of a human nose is composed of bones, cartilage and fibro fatty tissues.
What is the passing of characteristics or traits from parents to their offsping is?
The passing of traits from parent to offspring is , Heredity .
A nerve impulse travels from one cell to another by passing from?
one axon to a dendrite...
Pass a structure to functions?
Passing Structure to a function:type specifier function-name (structure-variable);
What is the name of a structure for passing smoke?
Cylinder
What does whim mean?
A whim is, essentially, a passing impulse. Whims would be the plural of the word whim. Whims means passing impulses.
Food enters the stomach by passing through a muscular structure at the end of the esophagus called?
The cardiac sphincter.
Which is the syntax used for passing a structure member as an argument to a function?
You can pass the address by using '&' with the pointer variable, while passing actual arguments. In formal arguments '*' is used in the place of '&'. To pass the address of a pointer variable a double pointer variable should be used .
What is the cell structure that does not allow any food to enter a cell?
The cell membrane allows the passing of some substances.
What is the difference between passing an array and passing single value data to a function?
Passing a single value to a function is often just a simple integer. But passing an array, character string or other data structure is typically "pass by reference", or in other words, the calling statement will 'point to' the place in memory where the data structure resides.When a function is called using a pointer to a data structure, both the calling environment and the called function are referencing the same data; any changes made to the data in the structure by the function will have changed the data that the original calling environment sees.However, when a value is passed to a function, the function creates it's own copy of the value, and can change it in any way without changing the original value.
What brain structure directs sensory and motor neuron pathways passing between spinal cord and cerebral cortex?
dendrons
What is a structure for passing smoke?
A structure for passing smoke usually involves a chimney or a ventilation system that allows smoke to travel out of a building safely. This helps prevent the accumulation of smoke indoors, which can be harmful to health and can also cause fire hazards. Proper design and maintenance of these structures are important for efficient smoke removal.
Why transmission at chemical synapses is unidirectional and why is it significant?
ok why is it uni directional. because there are only the receptors for the neurotransmitter on the receiving dendrites and not on the terminating bud. this means that the sodium can only be absorbed into the next nerve cell/brain cell in the line. but sodium released in a nerve impulse that is not absorbed into the next cell is asimilated back into the original terminating bud for reuse.as for why this is important. im speculating here but it means that the impulse can only go down the intended path and cannot go backwards in the chain.*addition*Uni-directionality is a function of the asymmetry of the synaptic cleft. Exocytosis of the neurotransmitter only occurs from the presynaptic terminal and is received at the postsynaptic receptors to cause initiation of the next impulse (Ca++ carried in dendrons). Although there are receptors on the presynaptic membrane, these are not depolarizing but inhibit further neurotransmitter release. Since the postsynaptic membrane does not release neurotransmitters and the receptors on the presynaptic membrane (auto-receptors) are not depolarising, the impulse is not back propagated.Uni-directionality of the impulse also occurs due to the characteristic membrane potential changes caused by the action potential. The hyper-polarisation of the nerve section caused by K+ efflux (repolarising and then hyper-polarising the nerve as the channels are slow to close), allows for the resetting of Na+ channels. This period (and slightly beforehand when the Na+ channels inactivate) is called the refractory period. Not only does this stop another impulse passing along the neurone, but the impulse can not pass backwards either. NB: local currents in nerves will travel in both directions, but since the previous section of the nerve has inactivated Na+ channels and is undergoing a period of hyper-polarisation, the impulse will not be back propagated.Uni-directionality is crucial to allow for the transmission of discrete impulses that can be interpreted by the brain as signals rather than an entire nerve depolarisation (which is not an impulse at all).So:Uni-directionality due to:asymmetry of cleftNa+ inactivationK+ efflux hyperpolarisationUni-directionality important because:allows for discrete impulses
How did the magna carta influence american leaders when they were considering the structure of their government?
It kept the king and queen from passing new taxes or changing laws without parlents consent
