The flashcards below were created by user
Renicheal
on FreezingBlue Flashcards.
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neurons
transmit impulses
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cell body
enlarged structure of neuron
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nervous system structure
- brain
- spinal cord
- cranial nerves
- spinal nerves
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nervous system cellular structure
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afferent neurons
carry impulses towards brain
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efferent neurons
carry impulses AWAY from brain/spinal cord
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neuroglia
cells that support neurons and bind them
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central nervous system
consists of brain and spinal cord
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brain
largest organ in body
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cerebrum
- largest and most upper of brain
- 2 hemispheres
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5 lobes of cerebrum hemisphere
- frontal
- parietal
- temporal
- occipital
- insula
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gyri
folds or convolutions
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cerebellum
- second largest structure of brain
- occupies posterior portion of skull
- includes movement, posture and balance
- aids in maintaining equilibrium and balance
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diencephal (AKA interbrain)
composed of smaller structures including thalamus and hypothalamus
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thalamus
receives stimuli sensory and transmits them
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hypothalamus
regulates activities including impulses that regulate heartbeat, temp, fluid balance, and endocrine functions
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brainstem
- pathway for impulse conduction b/w brain and spinal cord
- controls respirations, BP, and heart rate
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3 structures composed in brainstem
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meninges
protect brain and spinal cord
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spinal cord
transmits sensory impulses from body to brain
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3 coverings of meninges
- dura mater (outermost)
- arachnoid (middle covering
- pia mater (innermost)
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cranial nerves
originate in base of brain and emerge through openings
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spinal nerves
emerge from intervertebral spaces in spinal column
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radiculopathy
inflammation of nerve root associated with spinal column
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cerebrovascular disease
functional abnormality of the cerebrum caused by disorders of blood vessels of brain
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seizure disorders
sudden changes in behavior or consciousness related to uncontrolled electrical brain activity
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Parkinson disease
progressive neurological disorder, effecting portion of brain that controls movement
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MS
progressive, degenerate disease of central nervous system- inflammation, hardening, loss of myelin
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Alzheimer disease
progressive neurological disorder that causes memory loss and mental deterioration
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psychosis
severe loss of contact with reality
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neurosis
caused by emotional experience in past
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affective disorder
abnormal mood
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anorexia nervosa
eating disorder
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ADHD
impulsiveness, cant remain focused
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bipolar
unusual shifts in mood
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primary intracranial tumor
originate in brain tissue
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anesthetics
partial or complete loss of sensation
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anticonvulsant
prevent uncontrolled neuron activity
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antiparkinsonian
control tremors
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antipsychotics
treat psychosis, paranoia - alters chemicals in brain
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antidepressants
treats depression- increases neurotransmitter
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hypnotics
depress CNS functions - relieve agitation, anxiousness, restlessness,
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psychostimulants
reduce impulsiveness increases neurotransmitters
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