In my opinon it would be Micro Naps, Narcolepsy, and sleepwalking. (I suffer all of these due to constant NightTerrors.) MicroNaps- You fall asleep with out warning or control. Only last about a minute. You confuse reality and your dreams big time. Dangerous if your driving or operating machinery. ...
Opening of sodium channels and the fact that potassium channels arestill closed leads to rapid depolarization that may lead to theneuron firing.
False. Neurons always fire the same amount.
It is called moyamoya and it an extremely rare genetic condition.
It is called moyamoya and it an extremely rare genetic condition.
The entire brainstem is required for life.
There is no specific lowest level of metabolism.
When an action potential reaches the end of a neuron, it triggers the release of neuotransmitters such as epinephrine (sympathetic) or achetylcholine (parasympathetic).
The part of your brain that moves your muscles is called the frontal lobe. The frontal lobe sits behind your forehead and controls your muscles and movement. It is also involved in you behavior and emotions.
It has to do with what types of channels are open during this phase. In the repolarization phase the number of potassium channels are increased and the number of sodium channels are decreased. This allows for action potentials to not occur. Otherwise, the action potentials would add up and produce...
A large group of neurons working together is called a brain. A smaller group is called a ganglion.
This occurs due to temporary lack of blood flow, most often due to pressure on the arm - such as while sleeping. The "pins and needles" sensation produces awakening (or lightening of sleep) such that positional changes are made in order to return blood flow to that part of the arm and shoulder.
you would have to be a high level thinker
The action potential is an all-or-none phenomenon.
firmly bound to neural tissue and deep to the other meninges. =D
Inflammation of the intercostal bundle, which is the artery nerve and vein. It is a rare condition but can be treated with many alternative treatments such as acupuncture, acupressure, ice and chiropractic care.
The processes pertaining to the functions of the nervous system of an organism. http://www.genomeknowledge.org/cgi-bin/eventbrowser?DB=gk_current&FOCUS_SPECIES=Homo%20sapiens&ID=160046&
Action potentials are generated on a part of the neuron called the 'axon hillock' - the proximal most portion of the axon.
False, I just had this question.
Cervical neuritis is where you have pressure on the nerves that come out of the cervical spine with is neck area of the spine. The following symptoms will be experienced in one or both of the arms. The main symptoms of neuritis are tingling and burning sensation stabbing pains in the affected...
The lower extremities are most easily and readily affected. The foot drop from cerebral palsy and Parkinson's Disease, and the neuropathies from diabetes and alcoholism all affect the lower extremities before any other part of the body.
there is no lab test for bipolar
No, technically the striatum is composed of the caudate, putamen, and nucleus accumbens. The lentiform nucleus is composed of putamen, globus pallidus
The hippocampus is a major part of the brain. It is part of the limbic system, and supports long term memory and spatial coordination.
because the chemical message takes a while to diffuse
== Answer == For about 2-3 years
By a release & subsequent diffusion of chemicals called neurotransmitters across a very small gap between neurons, called a synapse. How neurotransmitters are released:As an impulse reaches an end of a neuron, called an axon terminal, the impulse opens ion pores in that axon terminal which...
Yes, in a manner of speaking. The brain is divided into two hemispheres, right and left. People tend to have a dominant hemisphere which is what also drives their being right or left handed. People who have a dominant right hand (e.g., it is the one they write with and eat with), have a dominant...
No, it uses [highly specific as opposed to bulk] Active Transport Systems times two: one each for each of the 'pumps' - transmembrane Gated Channels are used.
I have optic neruitis and am getting to fly over seas! is it ok to fly with this
No. When you are born, you have the most neurons you will ever have. Until you are in your early 20's your brain continues to "trim" neurons from your brain, a mechanism that aids in learning and development. After this point, as you age, you begin to lose neurons, simply from age. After brain...
It's a response to the visual stimulus.
The nuclear membrane encloses the genetic material of the cell, and acts as a barrier between the nucleus and the contents of the cytoplasm. This protects the genetic material and allows for regulation.
Yes, this may be a cause of permanent and severe brain damage. Hypoperfusion means there is an insufficient amount of blood flowing to those parts of the brain. The frontal lobe has neurons that function to regulate emotion and integrate multiple sources of information. The temporal lobes are...
Hello are there online courses you can take to become a neurophysiology technician. What type of courses do you take. How long do you have to go to school.
Nothing stays the same, right? The answer is, of course.
Schwann cells are neuroglial cells that actually cover and insulate axons. They not only help to spend up nerve transmission, but they also feed the neuron.
Damage to the basal ganglia cells may cause problems with one's ability to control speech, movement, and posture. A person with basal ganglia dysfunction may have difficulty starting, stopping, or sustaining movement.Parkinson's disease and other neurological disorders.
The myelin sheath cover the axon.
That should be treated by an ophthalmologist.
== Neuronal Denervation in MS == Denervation hypersensitivity occurs in multiple sclerosis. In multiple sclerosis demyelination of oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system result in disruption of communication between upper motor...
Cephalic means the head. The appendages for eating includes the mandibles and two pairs of maxillae. There are also three pairs of maxillipeds that move food towards the mouth.
they form alternate pathways for blood to reach a given body region
Adrenaline (epinephrine) and noradrenaline (norepinephrine) are sympathetic neurotransmitters that: - increase excitatory neurotransmission in the central and autonomic nervous systems - induce vasoconstriction (increasing blood pressure, shunting blood away from the surface of tissues, etc.) ...
Neuritis is a generic term meaning Inflammation of a nerve (neuro=nerve, itis=Inflam.) To be more specific you then put the type or name of the nerve with neuritis. Median nerve neuritis is carpal tunnel syndrome a nerve that runs through your wrist. Ulnar neuritis is a nerve that runs through...
In pharmacokinetics, it represents: - A bsorption - substance enters blood circulation - D istribution - substance is carried through the fluids and tissues of the body - M etabolism - substance is chemically processed/transformed into one or more other substances (called metabolites) - E...
delay of motor milestones such as holding up head, rolling over, or sitting mental retardation speech delay poor muscle tone body asymmetry paralysis of one or both sides of the body poor coordination
Supposedly (at least the neuroscientific researches point this way, so this is very probable) it is located in the cingulate cortex. It is the medial part of the cerebral cortex. When aware operation and conscious decisions are made, the electrical charge goes trough change in this area. Some...
Venous thrombosis prevention is a means to prevent blood clots from forming in veins within the body.
In the life cycle of the round worm, a very early life stage occurring within the uterus of the female round worm.
Extends hallux, dorsiflexes foot
Cerebral thrombosis occurs when a blood clot, or thrombus, forms within the brain itself, blocking the flow of blood through the affected vessel.
The axon needs proteins that are generated in the soma, to aid the synaptic knob or even serve as ion channels, and the proteins travel distally to get there. Other substances need to be disposed of or recycled, and they travel back to the soma, proximally. Therefore materials travel down and up the...
Receptors or more precisely, sensory receptors.
Seventy-five percent of patients with optic neuritis are women
The resulting vision loss is rapid and progressive, but only temporary
Spontaneous remission occurs in two to eight weeks
It typically occurs in one eye at a time (70%)
Optic neuritis occurs when the optic nerve, the pathway that transmits visual information to the brain, becomes inflamed and the myelin sheath that surrounds the nerve is destroyed
Treatment of optic neuritis with steroids is controversial
Optic neuritis tends to afflict young adults with an average age in their 30s
Nerve damage that occurs in the section of the optic nerve located behind the eyeball
Optic neuritis is most commonly associated with multiple sclerosis
The optic nerve located behind the eyeball
It is more common in young to middle-aged women
Multiple receptor subtypes allow for more "fine-tuned" neuromodulation of a given "signal" in a neural network. Each receptor subtype typically has a different binding affinity for the given neurotransmitter. Therefore, the neurotransmitter may bind more strongly or more weakly to one subtype over...
This is helpful so that your body can respond to its surroundings in time to avoid possible injuries. If the impulses moved in both directions, it might take more time for the proper response to occur, and result in injury.
Nerve impulses or "action potentials" move only in one direction within the body. This is called "orthodromic conduction". In the laboratory, where nerve cells can be isolated, action potentials can be made to artificially travel in the opposite direction. This is called "antidromic conduction"....
X-ray is a much better tool for locating metallic items.
The brain stem stem could be called the "primitive part of the brain" because it was the first brain structure to evolve, and is responsible for our basic vital functions like breathing and heartbeat.
by afferent and efferent path ways
Most neuroimaging studies of the brain have focused on problems in the left-rear portions of the cerebral cortex, toward the back of the temporal lobe.