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Neurophysiology

A branch of neuroscience that studies the physiology of the nervous system. From the Greek words nerve and nature, this science looks at the way that nerves function.

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What term is given to a person who is sexually attracted to the same gender but romantically attracted to the opposite gender?

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Asked by PedroVieirafb5733

The term commonly used to describe someone who is sexually attracted to the same gender but romantically attracted to the opposite gender is "heteroromantic homosexual."

What is happening when you are thinking?

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Asked by Wiki User

When you are thinking, your brain is actively processing and organizing information in order to generate ideas, solve problems, or make decisions. This process involves complex neural pathways and connections between different regions of the brain, such as the prefrontal cortex, hippocampus, and basal ganglia. Neurotransmitters and electrical signals facilitate communication between neurons, enabling the cognitive processes that occur during thinking.

What part of the brain has the ego?

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Asked by Wiki User

The ego is a part of the psyche and is a concept in psychology rather than a physical entity located in a specific part of the brain. It is associated with Freud's psychoanalytic theory and is considered to be a component of the mind that mediates between the id (instinctual desires) and the superego (internalized rules), helping individuals navigate reality.

Principles of equipotentiality by Karl Lashley?

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Asked by Wiki User

Karl Lashley proposed the principle of equipotentiality, suggesting that all parts of the brain are equally capable of taking over the functions of damaged areas. This idea challenges the notion of localized brain function and emphasizes the brain's capacity for flexibility and reorganization in response to injury. Lashley's work laid the foundation for our understanding of neural plasticity and the brain's ability to adapt to changing circumstances.

Can electricity be used to change the outlook of the brain?

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Asked by Wiki User

Yes, electricity can be used to change the activity of the brain through techniques like electroconvulsive therapy (ECT) or transcranial magnetic stimulation (TMS). These methods are used in clinical settings to treat various neurological and psychiatric conditions by modulating brain function.

Is the proportion of the brain weight to body weight different for men and women?

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Asked by Wiki User

On average, women have smaller brain-to-body weight ratios compared to men. However, individual variations exist, and factors such as body composition, genetics, and overall health can influence this ratio.

What is sacrolemma?

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Asked by Wiki User

The sarcolemma is the cell membrane of a muscle fiber. It surrounds and protects the muscle fiber and controls the movement of substances into and out of the cell. The sarcolemma plays a crucial role in muscle contraction and the transmission of nerve impulses to the muscle fiber.

What is the primary reason for seizures occurring with head injuries?

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Asked by Wiki User

Head injuries can cause seizures due to the disruption or damage to the brain's normal electrical activity. The primary reason for seizures occurring with head injuries is the disturbance in the balance of chemicals and electrical signals in the brain, resulting in abnormal electrical discharges that trigger seizures. Additionally, bleeding or swelling in the brain, as well as scar tissue formation, can also contribute to the development of seizures after a head injury.

Function of axon terminal?

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Asked by Wiki User

the sensory nerves re nerves that let you feel things and it sends signals to your brain when you feel something touching you

List the events that occur in an action potential?

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Asked by Wiki User

In simplest terms, the five stages of action potential are...

A. Action Potential

B. Depolarization

C. Recovery Phase

D. Refractory Period

E. Hyper-polarization

In myelinated axons where are the voltage gated sodium channels concentrated?

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Asked by Wiki User

In myelinated axons, the voltage gated sodium ions are located along the nodes of Ranvier, the exposed places between the myelin segments. The gates here, however, are not particularly more concentrated than on other un-myelinated axons.

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What determines whether a neuron will have an action potential triggered?

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Asked by Wiki User

The effect upon the target neuron is determined not by the source neuron or by the neurotransmitter, but by the type of receptor that is activated. A neurotransmitter can be thought of as a key, and a receptor as a lock: the same type of key can here be used to open many different types of locks. Receptors can be classified broadly as excitatory(causing an increase in firing rate),inhibitory(causing a decrease in firing rate), or modulatory(causing long-lasting effects not directly related to firing rate).

Why is a neuron called an interneuron?

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Asked by Wiki User

A neuron is called a inter-neuron because that specific neuron takes impulse from one neuron to a next neuron. For example your sensory neuron sends a impulse that you had felt a hot object. It goes through the spine to a inter-neuron to a motor neuron (this processes is called a reflex). Then the motor neuron tells your muscles in your hand to move

When a neuron is depolarized to threshold?

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Asked by Wiki User

1. The neuron fires an action potential, sending the electrical signal down the axon.

What is the location of a motor neuron?

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Asked by Wiki User

In vertebrates, the term motor neuron (or motoneuron) classically applies to neurons located in the central nervous system (or CNS) that project their axons outside the CNS and directly or indirectly control muscles. The motor neuron is often associated with efferent neuron, primary neuron, or alpha motor neurons.

Source:Wikipedia (search Motor neuron, to read more).

How does a synapse work?

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Asked by Wiki User

There are several types of synapses in the body. The most commonly discussed type is the chemical synapse, but other types of synapses include electrical synapses and immunological synapses. Because chemical synapses are the most commonly discussed synapses in general, that's probably what this question is referring to.

A chemical synapse is a small gap, or commonly referred to as a connection, between two cells that allows for the first cell (the presynaptic cell) to communicate with the second cell (the postsynaptic cell) through a chemical signal. These chemical signals are called neurotransmitters, and once they are released by the presynaptic cell, they act on the postsynaptic cell through specialized protein molecules called neurotransmitter receptors.

The actions triggered by a neurotransmitter binding its receptor on the postsynaptic cell are highly varied. They vary according to the type, quantity, and frequency of neurotransmitter release, the specific receptor involved, the type of cell that is receiving the neurotransmitter signal, among other things. For example, a neurotransmitter called glutamate typically causes activation of the postsynaptic cell, while a neurotransmitter called GABA typically inhibits postsynaptic cells. Likewise, if the postsynaptic cell belongs to a gland, then activity in that cell may promote secretion, while inhibition may hinder secretion. If the postsynaptic cell is a muscle fiber, then activation triggers muscle contraction, while inhibition causes relaxation.

A synapse is a connection which allows for the transmission of nerve impulses. Synapses can be found at the points where nerve cells meet other nerve cells, and where nerve cells interface with glandular and muscular cells. In all cases, this connection allows for the one-way movement of data. The human body contains trillions of synapses, and at any given time, huge numbers of these connections are active.

What is a neurotransmitter and where is it located?

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Asked by Wiki User

Neurotransmitters are molecules that travel from the synapses of one neuron to the dendrites of another neuron, activating channels on the second neuron that allow an influx of ions to rush in and start an impulse within the second neuron.