The Nervous System Flashcards
What does the nervous system include?
The central nervous system and the peripheral nervous system
What are the two pathways in the brain?
Simple or complex
What does the central nervous system consist of?
3
The spinal cord and brain
Contains neural tissue (neurons and glia), connective tissues, and blood vessels
Is protected by bone and meninges (CT)
What is the CNS protected by?
The meninges
What does the CNS contain?
4
Neurons
Glia
Connective tissues
Blood vessels
List the functions of the CNS
To process and coordinate sensory data, motor commands, higher functions of brain
How does the CNS process and coordinate sensory data?
It does so from inside and outside the body
How does the CNS process and coordinate motor commands?
It controls activities of peripheral organs (via muscles, glands)
How does the CNS process and coordinate higher functions of brain?
It coordinates intelligence, memory, learning, emotion
What are the four main regions of the brain?
Cerebrum
Diencephalon
Cerebellum
Brainstem
What does the deincephalon consist of?
The thalamus and hypothalamus
What regions of the brain form the subconscious brain?
Diencephalon
Cerebellum
Brainstem
What does the peripheral nervous system consist of?
2
All neural tissue outside the CNS
Consists of bundles of axons
What does the PNS do?
2
It delivers sensory information to CNS
It delivers motor commands from the CNS
Where are cranial nerves connected?
They are connected to the brain