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How are ears attached to your brain?
Ears are connected to the brain through the auditory nerve, which carries signals from the inner ear to the brain for processing. This nerve transmits sound information as electrical impulses to the brain, allowing us to perceive and interpret sounds.
Why nerve signal cant go backward?
Nerve signals cannot go backward primarily due to the refractory period that follows an action potential. After a nerve impulse travels along an axon, the sodium channels that opened during depolarization close and become temporarily inactivated, preventing another action potential from occurring immediately in that section of the membrane. Additionally, the directional flow of signals is aided by the structure of neurons, where the synapse only transmits signals in one direction—from the presynaptic to the postsynaptic neuron. This combination of biochemical and structural factors ensures that nerve impulses propagate in a forward direction.
What happens when a nerve cell is stimulated by another nerve cell?
they go nerve to nerve till it gets to the brain first is a nerve then the dendrite then the brian
How does a message jump across the synaptic gap and passes to the next neuron?
Nerve impulses, which are electrical, do not jump across the synaptic gap at synapses. Instead, the arrival of a nerve impulse at the axon terminal triggers the release of chemicals called neurotransmitters from the axon terminal into the synaptic gap, the nerve impulses then travel across the chemicals to the place where it needs to go to
What type of messages travel from nerve cells?
They go through synapses.
What is a description of carpal tunnel syndrome associated with nerve compression?
In carpal tunnel syndrome the tendons and ligaments of the wrist restricts the space for the nerves that go to the fingers and thumb, as a consequence the nerve's ability to transmit impulses are affected.
What are the three ways in which neurons are specialized to transmit nerve impulses very quickly?
they turn in to light and go through three bones...
What direction does nerve impulse travel?
Along a nerve cell, the impulse travels from the axon to the dendrites and then again to the axons through the synapse.
Where are the sensory receptors sensitive to changes in oxygen levels in the blood located?
The baroreceptors, located in the carotid sinuses, respond to changes and absolute levels of blood pressure. These nerves go to centers in the brain stem and trigger changes in heart rate and venous tone.
What is the structure of a neuron and what kinds of neurons are found in the body?
A neuron has a large cell body that contains the nucleus, threadlike extensions called ­dendrites, and an axon. The dendrites carry impulses toward the neuron's cell body. The axon carries impulses away from the cell body. Nerve impulses begin in a dendrite, move toward the cell body, and then move down the axon. A neuron can have many dendrites, but it has only one axon. An axon, however, can have more than one tip, so the impulse can go to more than one other cell.Axons and dendrites are sometimes called nerve fibers. Nerve fibers are often arranged in parallel bundles covered with connective tissue, something like a package of uncooked spaghetti wrapped in cellophane. A bundle of nerve fibers is called a nerve.
How are ears attached to your brain?
Ears are connected to the brain through the auditory nerve, which carries signals from the inner ear to the brain for processing. This nerve transmits sound information as electrical impulses to the brain, allowing us to perceive and interpret sounds.
Where does the blood from the left ventricle go?
left venatricle pumps the blood in to aorta rapidly 75% blood is pumped : aorta divides in to artries which
Why is the spinal cord and brain part of the CNS?
true or false do the Spinal nerve branches begin in the neck and continue to the midspine?
Why nervous system coordination so fast?
the Nervous system's coordination is so fast mainly because the human body has thousands or even million of nerves cells that are connected to one another. every action that happen in our body is transmitted to the brain. what runs in our nerve cells are called electric impulses the speed of electric impulses is just a split seconds. example: when you accidentally touched a hot object the reflex of our body is to let go of it. because the nerves cells already send electric impulses to our brain that the thing we touched is hot. then the brain will send another electric impulses to our hands that says let go of it its hot. this process happens within split seconds only.
How does sound travel to your brains?
the sound wave vibrate the cochlea in your ear (a small snail like organ in your ear) the fluid inside it shake touching receptors your brain takes the vibrations and and relays the info
Why nervous coordination so fast?
the Nervous system's coordination is so fast mainly because the human body has thousands or even million of nerves cells that are connected to one another. every action that happen in our body is transmitted to the brain. what runs in our nerve cells are called electric impulses the speed of electric impulses is just a split seconds. example: when you accidentally touched a hot object the reflex of our body is to let go of it. because the nerves cells already send electric impulses to our brain that the thing we touched is hot. then the brain will send another electric impulses to our hands that says let go of it its hot. this process happens within split seconds only.
Why nerve signal cant go backward?
Nerve signals cannot go backward primarily due to the refractory period that follows an action potential. After a nerve impulse travels along an axon, the sodium channels that opened during depolarization close and become temporarily inactivated, preventing another action potential from occurring immediately in that section of the membrane. Additionally, the directional flow of signals is aided by the structure of neurons, where the synapse only transmits signals in one direction—from the presynaptic to the postsynaptic neuron. This combination of biochemical and structural factors ensures that nerve impulses propagate in a forward direction.
