Neuroscience

The synapse consists of two main parts that allow one neuron to communicate with another: 1) the presynaptic terminal located at the end of an axon; and 2) the postsynaptic terminal located on the dendrite of another neuron. The presynaptic terminal is where neurotransmitters are stored and released from. The postsynaptic terminal is the recipient side of the synapse. Neurotransmitters released from the presynaptic terminal will diffuse across the synaptic cleft and bind to receptors located on the surface of dendritic spines.

Short term memory can hold seven to ten items for no longer than 30 seconds without any memory technique. Then items must go into long term memory which can hold thousands of memories at a time.

The characteristic of a nerve cell that relates directly to its function in receiving and transmitting nerve impulses is its king extensions. Cells are limited in size by the rate at which substances needed by the cell can enter the cell through the surface.

Damage to the right side of the brain from an aneurysm can cause a variety of symptoms such as difficulty with spatial awareness, problem-solving, emotional regulation, and recognizing faces. It may also impact creativity and imagination due to the right hemisphere's role in these functions. Rehabilitation and therapy can help manage these symptoms and improve quality of life.

The outermost part of the brain that is made up of tightly packed neurons is the cerebral cortex. It plays a key role in functions such as memory, attention, perception, awareness, thought, language, and consciousness.

Many of the nerves of the body pass between the sections that make up the back bone. between eachvertebra there is cartilage that keeps them apart and ensures smooth frictionless movement. when this cartilage becomes damaged or worn the vertebra come closer together leading to the nerves that pass between them having pressure put on them leading to pain damage and in some cases loss of the use of part of the body. Inflammation in certain places For instance, the carpal tunnel in the hand can exert pressure on the carpel nerve that controls part of the hand. this leads to tingling , pain and eventually loss of function in the hand and should be seen to before the damage becomes irreversible A similar problem can occur as a result of inflammation and or the build up of bone around the ulnar at the elbow (the area of the funny bone) where pressure is exerted on the ulnar nerve by bone build that is the result of advanced RA resulting in the same experience as carpel tunnel syndrome only on the Little finger side of the hand. So the effect on the nervous system would seem to be damage as the result of deformation of other part of the body that accommodate nerves. NOTE (This answer is written from the point of view of a person that has RA and has experienced all of the problems aside from the back bone and may in some sense not be totally accurate

Tobacco can affect the nervous system by increasing heart rate and blood pressure, leading to narrowed blood vessels and reduced blood flow to the brain. Nicotine can also bind to receptors in the brain, altering neurotransmitter levels and contributing to addiction. Long-term tobacco use can have detrimental effects on cognitive function and increase the risk of developing neurological disorders.

Flash! - The impulse is a jump of electricity from one neuron to the next via the dendrites. It happens in a millisecond of time so we are not even aware of it. Touch an ice cube with your finger; the signal goes from the finger to the brain and back that we get the immediate sense that the ice cube is cold.

Synapse. It is a small gap between neurons where neurotransmitters are released to carry signals from one neuron to another. This process is essential for communication between neurons in the nervous system.

Dendrites and cell bodies of sympathetic preganglionic neurons are located in the lateral horn of the spinal cord gray matter, specifically in the intermediolateral cell column (IML) between T1 and L2 segments.

The accident involving Phineas Gage was important to research scientists because it demonstrated the connection between brain injuries and changes in personality and behavior. It helped scientists understand the role of different brain regions in regulating emotions and decision-making. Gage's case provided valuable insights into the relationship between the brain and behavior.

Most things in life are realistic if you are willing to sacrifice everything else to get them. In this case there would an awful lot of study, competition for places, long hours, stressful situations i.e a lot of challenge.

So in answer to your question if you are willing to forgo all other priorities to become a neurologist then the answer is YES. If however you are not then something so demanding would not be a realistic goal.

Angular gyrus is the Brodmann's Area 39 and is commonly known as part of the Wernicke's area. This gyrus is responsbile for understanding written language. So, any damages to angular gyrus of your dominant hemisphere might result in "alexia" (loss the ability to understand the meaning of what you read, though you can see the words)

The state of a neuron when it is not firing a neural impulse is called the resting potential. This is when the neuron is negatively charged inside compared to outside, waiting for a stimulus to change its electrical charge and initiate an action potential.

There are 31 pairs of nerves that leave the central nervous system - 12 pairs of cranial nerves that exit from the brain and 31 pairs of spinal nerves that exit from the spinal cord.

Phineas Gage's accident was important because it provided insight into the relationship between brain function and behavior. His case led to the understanding that damage to specific areas of the brain can result in changes to personality and behavior, contributing to the field of neuropsychology.

No sypathetic nervous system does not raise blood sugar. It decreaces blood sugar concentration by providing that sugar(glucose) as an energy source to muscles which are under fight or flight response.

Yes, cilia and flagella are harmless structures found in some cells. They play important roles in cell movement and sensory functions.

Yes, desynchronization of the alpha rhythm typically occurs when eyes are open and attention is focused on external stimuli. The alpha rhythm is a type of brain wave that becomes more synchronized and prominent when the eyes are closed and the brain is at rest.

Interneurons are the neurons that serve as links or connectors between sensory and motor neurons in the central nervous system. They integrate and transmit signals between different parts of the nervous system to coordinate various functions and responses.

Yes, a neurologist can treat carpal tunnel syndrome if that is something they elect to do. Others may just want to do the testing (nerve conduction and EMG studies) and leave the treatment to other providers.

Vasocontriction throughout the intestinal tract during sympathetic discharge helps redistribute the blood and makes it easier for the heart to maintain higher diastolic blood pressure. This increases blood flow to major muscle groups and in turn permits increased oxygenation and energy utilisation, both of which are necessary during situations where physical exertion may have a (perceived) survival benefit.