nervous System Flashcards
brain
organ of soft nervous tissue
spinal cord
cylindrical bundle of nerve fibers
Cranial nerves
twelve pairs of nerves which arise directly from the brain
Autonomic nervous system
controls muscles of internal organs
Peripheral nervous system
outside of the brain and spinal cord
Dura mater
tough outermost membrane enveloping the brain and spinal cord
Pia mater
tender matter
Arachnoid mater
middle layer of your meninges
Broca’s area
region of brain concerned with speech
Medulla
inner region of a organ or tissue
Cerebellum
back of the skull in vertabraes
Pons
links the medulla oblongata and the thalamus
Midbrain
located below the cerebral cortex and at the topmost part of the brainstrem
Cerebrospinal fluid
clear watery fluid fills the space between arachnoid membrane and the pia mater
Blood-brain barrier
helps keep harmful substances from the brain
Hypothalamus
controls body temperature, hunger and thirst
Diencephalon
central portion of the brain
Stroke
blocks blood supply to the brain
Brainstem
connects the cerebrum to the spinal cord and cerebellum
Cerebral cortex
outermost layer
Limbic system
involved with our behavior and emotion repsonses
Phineas Gage
large rod through his brain and stayed awake the whole time
Acetylcholine
a compound that occurs throughout the nervous system
Dopamine
compound present in the body