Neuroscience

Alcohol binds to the GABA (gammabutyric acid) receptors in the brain. GABA is the major inhibitory neurotransmitter in the brain. When blood alcohol levels decrease, there is less GABA activation, and therefore more excitation in the brain (via the glutamate neurotransmitter system). This causes tremors, tachycardia (fast pulse) and hypertension (high BP) to occur, along with other symptoms. This process can be reversed by activating GABA once again, either by drinking alcohol or going through detoxification with GABA activating medicines in the benzodiazepine class (Valium, Ativan, and the like).

The problem with drinking alcohol in the morning is that it can lead to a vicious cycle of chronic intoxication (and withdrawal) states. When alcohol is used to treat withdrawal symptoms ("hair of the dog that bit you"), more alcohol per day is used, often leading to tolerance and dependence. Treatment for this cycle is best accomplished by detoxification, counseling, and abstinence.

Dopamine is a neurotransmitter that is distributed across multiple areas of the brain, including both the left and right hemispheres. It plays a key role in regulating functions such as movement, motivation, pleasure, and reinforcement.

Uncinate disease is a neurological condition characterized by recurring attacks of severe, stabbing facial pain. The pain typically occurs on one side of the face and can be triggered by activities that involve the facial muscles, such as chewing or talking. It is believed to be caused by compression or irritation of the trigeminal nerve.

A neuron will have an action potential if the stimuli it receives are strong enough to reach its threshold level. Once the threshold is reached, voltage-gated channels open, allowing an influx of sodium ions which triggers depolarization and leads to the generation of an action potential.

L-DOPA is a precursor to dopamine that is used to increase dopamine levels in the brain for treating conditions like Parkinson's disease. Dopamine is a neurotransmitter that plays a crucial role in regulating mood, movement, and motivation in the brain.

Yes, neural tissue is considered soft tissue. Soft tissues are tissues that support, connect, or surround other structures and usually have a softer consistency compared to bones. Neural tissue includes the brain, spinal cord, and nerves, which are all made up of cells and fibers that are softer and more pliable compared to bones.

The giant multipolar neuron helps to coordinate movement and maintain muscle tone in invertebrates. It plays a key role in the coordination of activities within the nervous system and the conduction of nerve impulses along its large axon.

Excitatory postsynaptic potentials (EPSPs) are typically produced by the influx of positively charged ions, such as sodium or calcium, into the postsynaptic neuron. This influx of ions depolarizes the neuron, making it more likely to fire an action potential. EPSPs are a key mechanism in the communication between neurons in the nervous system.

A person could have a seizure while having an EEG, but that does not mean the EEG is the cause. The EEG is just recording the brain activity. During the course of an EEG a patient is exposed to different things to see what way the brain behaves, like getting the patient to breathe heavily or flashing lights at them.

Synapses are important because they enable signal transmission in the body. These signals are the nerve impulses, which go across and between neurons. This process occurs in the synaptic cleft of the central nervous system.

The chemical stimuli in the body are converted into electrical impulses when some sensory input system in the body is triggered. This can be a visual sense like the eyes, or a aural sense like the ears. The chemical stimuli gets converted into potential energy and converted.

When a neuron is sufficiently stimulated, it depolarizes, allowing sodium ions to rush into the cell, triggering an action potential. The action potential travels down the length of the neuron, causing the release of neurotransmitters at the synapse and facilitating communication with other neurons.

The left and right brain communicate through the corpus callosum, a bundle of nerve fibers connecting the two hemispheres. This allows information and signals to transfer between the two sides of the brain, enabling coordination of various cognitive functions.

• in molecular layer = basket + stellate neurons
• in purkinje cell layer = cell bodies of purkinje neurons
• in granule cell layer = cell bodies of granule + Golgi type 2 neurons

The peripheral nervous system (PNS) makes contact with the environment. It includes sensory receptors that detect stimuli like touch, temperature, and pain, transmitting this information to the central nervous system for processing.