How much do you really know about the nervous system?

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@FancierWilliamsite8315

Study Notes

Overview of the Nervous System: Cells, Functions, and Divisions

The nervous system is responsible for detecting and responding to changes in the body and external environment.
It is divided into the central nervous system (brain and spinal cord) and the peripheral nervous system (autonomic and somatic).
Neurons are the specialized cells responsible for transmitting nerve impulses, while glia provide support to neurons.
There are between 50 to 100 billion neurons in the brain.
Neurons have three main parts: the soma (cell body), dendrites (receive stimulation), and axon (transmit nerve impulses).
The point of contact between two neurons or a neuron and an effector organ is called a synapse.
Neurotransmitters are released from the presynaptic terminal and taken up in the postsynaptic terminal.
Glia can be subdivided into astrocytes (support neurons and form the blood-brain barrier), oligodendrocytes (responsible for myelination in the central nervous system), and microglia (phagocytic function).
Types of neurons include Purkinje, pyramidal, motor, bipolar or pseudo-unipolar.
The autonomic nervous system is subdivided into the sympathetic and parasympathetic systems.
The somatic nervous system is made up of cranial and spinal nerves.
The nervous system is involved in higher cognitive functions, as well as regulating various functions of organs and systems.

Description

Test your knowledge on the nervous system with this informative quiz! From the functions of neurons to the divisions of the nervous system, this quiz covers everything you need to know about the cells, functions, and divisions of the nervous system. Are you ready to show off your expertise on the brain and spinal cord? Take this quiz and find out!