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Chapter 9-10

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.

Nervous system tree   Cns central nervous system the brain and spinal cord  
Pns peripheral nervous system   Information in and out  
Somatic nervous system   Voluntary skeletal muscles  
Autonomic nervous system   Involuntary glands smooth muscle cns and cardiac muscle  
Symethic   Motor commands sympathy engaged  
Parasympathetic   Relaxes you floaty  
Sensory neuron   Has information to cns affrent neuron  
Motor neuron   Effent neuron  
Inter-   Interacting neuron internerons brain and spinal cord  
Dendrites   Neuron makes neurons  
Axon   Where pass action message down release chemical message  
Multiple sclerosis   Destruction of myelin sheaths in cns by immune response myelin attack by person antibodies will not get contract will cause fatigue weakness stop atrophy mood problems numb limbs  
Neuroglia   Provide structure support for neuron said in formation of synapses  
Cns   Central nervous system  
Astrocytes   Connects neurons to blood vessels  
Ollgodendrocytes   Myelinate cns axons  
Microglia   Phagocytic cell provides structural support  
ependyma or enedymal cells   Line central canal spinal cord and ventricles of brain and spinal cord covers choroidpiexuses  
Depolarized   If membrane protentional becomes less negative more positive  
Hyperporized   Becoming more negative  
Vesicles trafficking   Tempture drops  
Opiate drugs   Morphine painkillers from poppy plant  
Endorphians   Human body produces opiates. Which can be addictive useful for server pain  
Antagonist   Drug that binds to receptor blocks neurontransmitter binding  
Agonist   Drug that activates receptor causing action potential or aiding in binding of neurotransmitter  
Amphetamines   Enhance noriephrine activity elevation alterness and mood  
Facial expression muscles   small and in the dermis paralysis causes sag found in scalp forehead around the eyes nose mouth and the neck  
Four major muscles   temporalis, masseter, lateral pterygoid, medial pterygoid  
TMJ Syndrome Temporomandibular joint   articulation problem between mandibular condyle of mandidble and mandibular fossa of temporal bone  
Pectoral girdle hip bone muscles   originate on axial skeleton and insert on to clavicle or scapula  
hamstring group   main function is to bend knees during walking running climbing stairs and jumping  
Quadriceps group   four separate muscles that fuse into one common tendon patella  
dendrites   receive input  
sensory receptors   at the end of neurons determined sensory integrative and motor  
somatic nervous system   voluntary communicaates to the central nervous system to skeletal muscles causing contraction  
autonomic nervous system   communicates instructions to the central nervous system that control viscera heart and various glands  
synaptic cleft   ends of neuron  
schwann cells   large axons of peripheral neurons in lipid rich sheaths  
multipolar neuron   many processes arising from it cell body  
ganglia   nervous tissue in a multipolar neuron  
bipolar neuron   has two processes from either end  
interneurons   in the brain and spinal cord rely on information  
unipolar neuron   cell body with a single process that divides into two branches and functions as a axon  
motor neuron   conducts impulses from the brain or spinal cord out the effects muscles or glands  
ependyma   cuboidal or columnar cells in shape and many have cilia  
satellite cells   small cuboidal cells that surround cell bodies of neurons in ganglia  
presynapic neuron   sender to the synapse muscle or glandular cell  
resting potential   not sending impulses  
membrane potential   potential difference across cell membrane  
action potential and threshold potential   neurons being depolarized -55 all or nothing response  
synaptic transmission   released neurotransmitter molecules diffuse across the synaptic cleft and bind to receptors on the post synaptic cell membrane  
neurotransmitters   neuron system produces 100 different types in the brain alone  
Acetylcholine   controls skeletal muscle actions  
norepinephrine`   creates a sense of well being low levels may lead to depression  
dopamine   creates a sense of well being deficiency in some brain areas associated with Parkinson disease  
serotonin   primarily inhibitory leads to sleepiness action is blocked by LSD enhanced by selective serotonin rep take inhibitor antidepressant drugs  
histamine   release in hypothalamus promotes alertness  
GABA   generally inhibitory  
Enkephalins   increase during periods of painful stress  


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