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Definition
| cells that transmit electrical impulses |
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the master controlling and communicating system of the body that communicates through electrical impulses
has three overlapping functions;
1. moniter changes inside and outside the body
(react to stimuli)
2. process and interperet sensory input
(integration)
3. effect a responce
(motor output) |
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Definition
| rapid and specific communications to body cells that cause immediate responces |
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| Peripheral Nervous System |
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Definition
| everywhere except for brain and spinal cord |
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nonneural tissue that supports insulates and protects the delicate neurons
can't trnasmit impulses but can divide |
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Definition
a type of neurologia
anchors neurons to capilaries for nutrients |
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Definition
type of neurologia
white blood cells that rid wase and look spide-like
(phagocytes) |
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Definition
type of neurologia
brain and spinal cord
cilia helps to circulate cerebral spinal fluid
helps the impulses go fast |
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Definition
type of neurologia
wrap their flat extensions around nerve fibers to insulate
(myelin sheaths) |
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Definition
cell bodies are called nuclei
axons are called tracts
has white and grey matter |
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cell bodies are called ganglia
axons are callednerves
doesn't have grey or white matter |
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| ability to transmit impulses |
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damaged myelin on neurons
results in problems with movement as impulses aren't propperly transmitted |
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Term
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Definition
| mylenated (faster) cells/tracts |
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Definition
| unmyelnated (slower) cell bodies and tracts |
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Definition
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Definition
| form myelin sheaths in pns |
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Definition
| protect cushioning cells of the pns |
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| delivers messages to the brain |
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Definition
| carries effect to muscles, glands, ectcetera |
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Term
association
(interneutrons) |
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Definition
| in brain where sensory and motor neurons meet |
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Term
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Definition
many projections
most common
mottor and association neurons |
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Definition
one axon and one dendrite
receptor cells
found in sense organs
example; eyes and nose |
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Definition
single process
found in sensory neurons in PNS (ganglia) |
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sensory information
one of four lobes in the cerebrum |
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one of four lobes in the cerebrum
decision making
problem solving
planning
movement
speech (broca's area) |
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Definition
one of four lobes in the cerebrum
memory
hearing
smell
emotions |
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Definition
one of four lobes in the cerebrum
sight |
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Definition
information exchanged between thre right and left sides of the brain goes through this part[image]
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region of the diencephalon
relay station for sensory impulses
(sends them to the right part of the brain for processing) |
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Definition
region of the diencephalon
contains the
choroid plexus- mass of capilaries that forms cerebral spinal fluid
pineal body- releases hormones that activate or deactivate the choroid plexus |
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Definition
region of the diencephalon
temperature regulation
metabolism
limbis system (emotions, thirst, pain, appetite, libido)
mamillary bodies- reflex center for scent and memory |
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Definition
posterior to central fissure in the parietal lobe
allows recognition of pain, cold, and light touch |
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Definition
| anterior to frontal fissure in frontal lobe |
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major voluntary motor tract in primary motor area
responsble for the fine motor control of face mouth and hands |
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Definition
conects to the spinal cord
contains midbrain, pons, medulla, reticular formation |
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| tiny canal that convery impulsees for vision and hearing |
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| regulates heart rate, blood pressure, vomiting, swallowing[image] |
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controlls consciousness
sleep/wake cycles[image] |
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controls balance, equilibrium, some skeletal muscles
has two hemispheres
includes the hippocampus and amygdala
[image] |
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Definition
| during sleep this transfers short term memory to long term memory |
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Definition
| allows you to memorize and recall information |
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Definition
- bone
- meninges
- cerebrospinal fluid
- bloodbrain barrier
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Term
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Definition
the protective membranes of the brain
- duramater- outer, double-layered
- arachnoid mater- web like has cerebrospinal fluid in the subarachnoid spaces
- pia mater- directly attached to the brain
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Term
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Definition
| swelling and infection of the meninges |
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damage to the cerebellum
results in clumsiness and disorganization |
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Definition
extension of the brainstem
two way path
extends from foramen magnum to the second lumbar vertibrae
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damage to the spinal cord
quadeplegic- all four limbs inactive
paraplegic- only the legs are inactive |
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Definition
slight brain injury
bruise
temporary |
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Definition
blood clot in the brain sudden loss of oxygen to the brain
permanent damage |
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Definition
| large group of spinal nerves |
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