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Questions and Answers
What is the primary function of the nervous system?
What are the two main components of the central nervous system (CNS)?
What is the function of neurons?
Which hemisphere of the cerebrum is associated with creativity, imagination, and artistic skills?
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What is the function of the sensory component of the nervous system?
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Which part of the brain is associated with language skills and scientific thinking?
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Study Notes
Nervous System Overview
- The nervous system receives and relays information about internal and external changes, monitoring activities within the body and responding accordingly.
Parts of the Central Nervous System (CNS)
- The brain consists of billions of interconnected neurons and glia, with two main types of matter:
- Gray matter (40%): comprised of neurons and their supporting cells
- White matter (60%): comprised of nerve fibers and glial cells
Neurons
- Neurons are specialized cells that carry messages throughout the nervous system
- They are the basic functioning unit of the nervous system
Functions of Neurons
- Sensory function: gathers information from the outside world and inside the body
- Transmits information to the processing area of the brain and spinal cord
- Integrative function: processes information to determine the best response
- Motor function: sends information to muscles, glands, and organs to respond correctly
Cerebrum Functions
Left Cerebral Hemisphere
- Controls the right side of the body
- Associated with:
- Maths skills
- Scientific thinking
- Spoken and written language
Right Cerebral Hemisphere
- Controls the left side of the body
- Associated with:
- Creativity
- Imagination
- Insight
- Artistic skills
- Writing skills
- Musical skills
- Logical thinking
Brain Divisions
- Forebrain: Telencephalon and Diencephalon
- Midbrain: Mesencephalon
- Two major divisions of the brain: Forebrain and Midbrain
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Description
Learn about the nervous system, its functions in relaying information, monitoring internal and external changes, and the parts of the central nervous system such as the brain and neurons.
