Neuroscience

No

Neurotransmitters can help bring another neuron to the point where it initiates an action potential by binding to postsynaptic receptor sites.

If the receptors are the type that allow positively charged ions to flux through the cell membrane, and if this happens on a large enough scale (i.e., multiple sites are hit at once), then the probability of an action potential occurring becomes very high.

No, neurotransmitters that depress the resting potential are called inhibitory neurotransmitters. Excitatory neurotransmitters have the opposite effect, causing depolarization and increasing the likelihood of an action potential.

Factors that can slow down the functioning of the central nervous system include alcohol and drug consumption, lack of sleep, certain medications, dehydration, and neurological disorders like multiple sclerosis.

Neurobehavioral effects refer to changes in behavior or cognitive functioning that are associated with alterations in the nervous system. These effects can result from various factors such as brain injury, disease, or the influence of substances like medications or drugs on the brain. Neurobehavioral effects can manifest as mood changes, cognitive impairment, or changes in motor function.

Resting potential and action potential are both names for the measure of electrical voltage within the membrane of a cell. Specifically, these terms are used in describing the transfer of information along neural pathways. Resting potential is a state where cells are at rest. However, if an electrical response or depolarization reaches threshold, then ion channels open, allowing sodium ions to rush into the membrane and increase the voltage measure, firing an action potential along the length of this membrane.

'Sidewalk Neuroscience' refers to the practice of studying the brain and behavior in everyday settings outside the lab, often using portable technology to collect data in more naturalistic environments like sidewalks, parks, or public spaces. This approach allows researchers to observe real-world interactions and behaviors that may not be captured in traditional laboratory settings.

Research add value to the knowledge we acquire.Here one can experience the real value of life(Science), purely a practicality.Its a area where we can invest our valuable time and creativity to discover the innovation of God and manipulation of the same for the utilization for mankind.

Choosing a career in research can be fulfilling as it allows you to contribute new knowledge to your field, make a positive impact on society, and constantly learn and grow through the process of discovery and problem-solving. It offers opportunities for innovation, collaboration with like-minded individuals, and the chance to address pressing issues facing our world today.

The regeneration of action potential is called "propagation." It involves the transmission of the action potential along the length of the neuron's axon.

To keep your nervous system healthy, it's important to maintain a balanced diet rich in fruits, vegetables, whole grains, and lean proteins. Regular physical exercise, sufficient sleep, stress management techniques, and avoiding habits like smoking and excessive alcohol consumption also contribute to nervous system health. Additionally, staying hydrated, managing chronic conditions like diabetes, and protecting yourself from head injuries can help support overall nerve function.

When an action potential reaches the end of a neuron (presynaptic neuron), it triggers the release of neurotransmitters into the synaptic cleft. These neurotransmitters then bind to receptors on the next neuron (postsynaptic neuron), causing ion channels to open and generate a new action potential. This communication process allows signals to be transmitted from one neuron to another.

An example of a non-antagonistic interaction of the sympathetic nervous system is when it triggers the "fight or flight" response in response to a perceived threat. This response involves simultaneous activation of multiple physiological processes such as increased heart rate, dilated pupils, and release of adrenaline to help the individual respond to the threat effectively.

Repolarization is the phase in which the cell membrane potential returns to its resting state after depolarization. This is driven by the efflux of potassium ions, resulting in the membrane potential becoming more negative. Repolarization is essential for the heart to reset and prepare for the next action potential.

Sensory neurons have one axon to transmit signals from the peripheral nervous system to the central nervous system. This allows for the efficient relay of sensory information such as touch, pain, and temperature to the brain for processing. Having one axon helps maintain the specificity and accuracy of the sensory signals being conveyed.

The outer nervous system consists of the somatic nervous system and the autonomic nervous system. The somatic nervous system controls voluntary movements and receives sensory information. The autonomic nervous system regulates involuntary functions like heart rate, digestion, and breathing.

Motor neuron endings are specialized structures at the terminal ends of motor neurons that form synapses with muscle fibers. These endings release neurotransmitters, such as acetylcholine, to stimulate muscle contractions. They play a crucial role in transmitting signals from the nervous system to muscles, allowing for voluntary movement.

No. The inside of the neuron becomes more positively charged.

The resting potential is -70 millivolts. So, the outside of the neuron starts off being more positively-charged, and the inside is more negatively-charged.

As sodium ions (which are cations - positively-charged ions) move into the neuron (via sodium ion channels), this depolarizes the neuron (induces a "signal"). If this net signal is above a certain threshold, it will trigger an action potential, whereby channels will open in the axon, just ahead of the action potential itself, which allows more cations to flow into the axon, increasing the positive charge inside the axon, and further triggering the opening of cation channels downstream.

Note: As the action potential (positively-charged region inside an axon) propagates down the axon, sodium channels open behind it to pump sodium ions back outside the axon, restoring the inner negative charge of that region, so that it can return to the resting potential. Therefore, once the action potential is formed inside the axon, and is moving downstream, sodium pumps open behind it so that the signal is dampened in an already-activated region, thereby restoring the resting potential. This prevents retriggering a secondary action potential (which would result in amplification of the end signal).

On the other hand, when an inhibitory neurotransmitter binds with the neuron, or else a chloride ion channel (chloride ions are anionic - negatively-charged) opens, chloride ions enter the neuron, which drives the membrane potential further into the negative, thereby reducing the likelihood of action potential (signal) generation.

No. The sympathetic nervous system is excitatory. It works via epinephrine and norepinephrine to put the body on a state of alert, vigilance, and action.

The parasympathetic nervous system (controlled mainly by acetylcholine) is relaxing and calming.

When you accidentally drop a ballpen, sensors in the skin and muscles of your hand detect the tactile sensation and send signals through nerves to the spinal cord. The spinal cord then relays this information to the brain, which quickly processes it and sends commands back to the muscles to pick up the ballpen. This process happens rapidly and automatically, allowing you to react and retrieve the ballpen without much conscious effort.

Peaches contain antioxidants, vitamins, and minerals that support brain health. These nutrients can help protect brain cells from damage, improve cognitive function, and reduce inflammation in the brain. Including peaches in your diet can contribute to overall brain health and function.

The axon is the structure in the neuron that sends signals to other neurons or organs. It transmits electrical impulses away from the cell body towards the target cells, allowing for communication within the nervous system.

A false statement about a cell's resting membrane potential could be that it does not involve the movement of ions across the cell membrane. In reality, the resting membrane potential is primarily due to the unequal distribution of ions, such as sodium and potassium, across the membrane, maintained by ion channels and pumps.

An aura is a sensation that can happen before a seizure, often acting as a warning to the person that they are about to have one. Different people experience different things. It could be a feeling, like a tension or fear or nervousness. It could be a physical sensation, maybe a feeling in their mouth or their stomach or a tingling around their body. It could be a sensory perception or a feeling of confusion. Any of these and other things can be called an aura.

It can be a warning of a seizure coming, but it is like a mini-seizure in itself and sometimes nothing else happens after it. To explain that aspect to someone who has never had a seizure you could refer to other kinds of experiences, like when you feel you are about to sneeze and then it doesn't happen. If they do have a seizure the aura may come immediately before the seizure or there may be a time delay of minutes or even as much as an hour before the seizure happens. A person will know they are having an aura and will remember that, though they will not remember a seizure itself. Although there are different kinds of auras any individual that gets auras will normally always have the same type of one. Auras can also happen for other conditions to do with the head, like migraines.

also known as the "nerve impulse". with stimulus the permeability of the membrane to NA+ at the point of stimulation increase, and NA- ions rush into the cell causing the outside to lose its excess of positive ions. That location becomes depolarized only for an instant, and this produces an action potential.