Neuroscience

The two types of peripheral nervous system are the somatic nervous system, which controls voluntary movements, and the autonomic nervous system, which regulates involuntary bodily functions like heart rate and digestion.

A neurotransmitter whose function depends on a second messenger is known as a neuromodulator. Neuromodulators can influence the behavior of neurons by affecting processes like signal transduction or synaptic transmission.

No, calcium itself is not a neurotransmitter BUT it is highly important in the process of the action potential. The action potential triggers the influx of calcium at the end of the terminal bouton, causing the influx of Ca2+ into the cell and this triggers for the release of the neurotransmitter. :)

Neurons are classified by their structure and function. Structurally, neurons can be categorized as sensory neurons, motor neurons, or interneurons. Functionally, neurons can be classified as excitatory or inhibitory based on the type of signals they transmit.

It depends on the student and the University you attend. Your undergraduate can take anywhere from 2-5 years to complete. Also some schools have a combined Masters and PhD program which ranges from 3-5 years to complete. If you choose a university that does not have a combined program it may take longer. After the completion of the doctoral coursework, training and dissertation, students must complete a 1-year internship, followed by an additional 2 years of supervised residency.

So it could take anywhere from 8-13 years.

The equilibrium potential for sodium (ENa) is around +60 mV. This is the membrane potential at which there is no net movement of sodium ions across the membrane, as the concentration gradient is balanced by the electrical gradient.

Enkephalins and endorphins are neuromodulators because they can influence the activity of neurotransmitters in the brain by interacting with specific receptors, altering the cell's response to those neurotransmitters. This modulation can result in changes in pain perception, mood, and overall brain function.

axon. The nucleus contains the cell's DNA and controls its functions, while the axon is a long extension that conducts electrical signals away from the cell body to other neurons or muscles.

Stop the transfusion immediately, monitor vital signs, and notify the healthcare provider. Chills and rigors during a blood transfusion could indicate a transfusion reaction which needs to be addressed promptly to prevent further complications.

Damage to Broca's area can cause expressive aphasia, resulting in difficulties with speech production. Damage to Wernicke's area can cause receptive aphasia, resulting in difficulties with understanding language and forming coherent sentences. Both areas are important for language processing and communication.

Yes, atraumatic brain injury can lead to seizures due to disruptions in normal brain function following the injury. Seizures may occur immediately after the injury or develop weeks to months later. It is important for individuals with atraumatic brain injuries to receive proper medical evaluation and management to address any potential seizure activity.

The junction between the axon of one neuron and the dendrites of another neuron is called a synapse. This is where communication occurs between neurons through the release and reception of neurotransmitters. The synapse is a crucial point for signal transmission in the nervous system.

These symptoms could indicate a seizure, which is caused by abnormal electrical activity in the brain. It is important to seek medical attention to determine the cause and appropriate treatment options.

The three types of exercise is go find it in your book lol........;)

This process is called a reflex arc. It involves a rapid and involuntary response to a specific stimulus, which bypasses the brain and is coordinated by the spinal cord or peripheral nerves. This allows for quick reactions to potential danger without the need for conscious thought.

The stage that immediately follows depolarization in an action potential is repolarization. During repolarization, potassium ions move out of the cell, causing the membrane potential to return to its resting state.

Abiotic factors include temperature, humidity, pH,

salinity, O2 concentration, amount of sunlight,

availability of nitrogen, and precipitation.

Temperature may influence humidity and precipitation.

Precipitation may influence pH, nitrogen

availability, and salinity.

The cerebral aqueduct (also known as the aqueduct of Sylvius) is the canal that connects the third and fourth ventricles of the brain. It is a narrow canal located in the midbrain, allowing for the flow of cerebrospinal fluid between these two ventricles.

The brain's main job is to receive and process information from the body and the environment, make decisions, and send signals to control the body's actions and functions. It is responsible for our thoughts, emotions, memories, and coordination of bodily functions.

The largest portion of the primary motor and sensory cortex is devoted to the face and hands. This is because these areas have fine motor control and require greater sensory input for activities of daily living and interactions with the environment.

Neurons are covered by a myelin sheath, which consists of layers of fatty tissue that insulates the axon and reduces leakage of impulses. The myelin sheath is formed by specialized cells called oligodendrocytes in the central nervous system, and Schwann cells in the peripheral nervous system. This insulation allows for faster and more efficient transmission of electrical impulses along the axon.

The two integral parts of the autonomic nervous system are the sympathetic nervous system responsible for, "rest and digest" and the parasympathetic nervous system that is responsible for, "fight or flight".

The first step for nerve impulse generation is the depolarization of the cell membrane, which is triggered by a stimulus. This depolarization causes a change in the electrical charge of the cell membrane, leading to the opening of ion channels and the initiation of an action potential.

The cell membrane is more positive outside due to a higher concentration of positively charged ions like sodium (Na+), while it is more negative inside due to a higher concentration of negatively charged ions like potassium (K+) and proteins. This creates an electrochemical gradient across the membrane, known as the membrane potential. This gradient is maintained by ion pumps and channels that selectively allow ions to move in and out of the cell, creating the different charges inside and outside.

synaptic cleft, where neurotransmitters are released by the synaptic terminal and bind to receptors on the muscle fiber to trigger a muscle contraction.