Neurons and Neurogenesis Overview

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They carry nutrients to neurons.
They increase the speed of electrical signals.
They protect neurons from damage.
They facilitate communication and are crucial for learning and memory. (correct)

<p>It may contribute to neurogenesis. (A)</p> Signup and view all the answers

<p>100 trillion - 1,000 trillion (D)</p> Signup and view all the answers

Specialized cells that form connections in the brain, responsible for sending and receiving signals.

Connections between neurons, vital for brain function (learning, memory).

Neurons consist of a cell body, axon (signal sender), and dendrites (signal receiver).

Brain has vastly more synapses than neurons, enabling communication and learning.

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Learning forms new synaptic connections; these connections are crucial in memory and complex thinking.

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Neurons are cells with three main parts: a cell body, an axon (sends signals), and dendrites (receives signals).
The human brain has 86-100 billion neurons
Neurons connect to each other via synapses.

Synapses are gaps between neurons.
Electrical signals pass across synapses.
Synapses are crucial for learning and memory.
New synaptic connections form with effort and learning.
Synapses can be repaired if a body part is damaged.
The brain can make new neurons in some areas, like the hippocampus, a part of your brain where learning and memory happen

Neurogenesis is the creation of new neurons.
It occurs in some parts of the brain, such as the hippocampus
Exercise may help with neurogenesis.
A 2016 study in Finland found that running regimens increased neurogenesis in rats