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60 Cards in this Set
- Front
- Back
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cerebral cortex
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part of the brain that is responsible for consciousness
voluntary movement |
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nerves
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carry message to brain
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superficial sensation
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heat, pain, touch. from outside stimulus
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deep sensation
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muscle tension, pain, pressure, vibration
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somatic sense
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the sense the body has of temperature, pain. ?
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kinesthetic sense
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sense body has of movement
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synapse
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neurochemical connection (remember, reuptake?)
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proprioreceptors
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sensors that monitor change in body limb position
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nervous system:
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divided into two parts:
1) CNS 2) PNS |
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central nervous system
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brain, brainstem, spinal cord
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peripheral nervous system
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consists of 12 pairs of cranial nerves and 31 pairs of spinal nervous, and sensory receptors.
OUT OF BONE |
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autonomic nervous system
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happens automatically in bod- involuntary
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sympathetic system and parasympathetic system
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1) responds to stimulation through energy expenditure
2) inhibits sensations |
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afferent, efferent
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away, towards.
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autonomic nervous system
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happens automatically in bod- involuntary
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sympathetic system and parasympathetic system
division of ANS |
1) rest and digest BREAK
2) fight or flight ACCELERATE |
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afferent, efferent
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ascending, descending
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neurons
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communicating, gossiping! between cells
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glia
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support for neurons
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excitation
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stimulation causing increase of activity
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inhibition
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stimulated reduction in activity
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NT (neurotransmitter)
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tap the NT in front of them, passing on message
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presynaptic neuron
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stimulate postsynaptic neuron
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postsynaptic neuron
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receives message
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receptor sites
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ejected NT in synapse stimulates receptor sites on postsynaptic neuron
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interneurons
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provides communication between other neurons. BRAIN. doesnt leave CNS
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motor neuron
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efferent!
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sensory neuron
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activated by sensory input- talks to CNS
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conduction velocity
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how fast a message is sent down an axon in an action potential
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hematoma
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pooling of blood in the brain
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cerebrospinal fluid (CSF)
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cushioning for the CNS (fluid) and bring waste out and nutrients in
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ventricular system
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spaces through which CSF flow
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choroid plexus
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tissue in the ventricle that makes CSF
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gyri
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mountains on cerebral cortex
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sulci
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valleys on cerebral cortex
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contralateral innervation
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?
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corpus callosum
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provides communication between hemispheres SUPERHIGHWAY
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genu
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fibers that go through this part of the corpus collosum serve the anterior part of the brain
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demylenation
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myelin allows for communication between fibers. demylenation is damage to the myelin, i.e damaged communication
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projection fibers
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connect cortex with distant locations
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association fibers
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provide communication between regions of the same hemisphere
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commissural fibers
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run from one location on a hemisphere to the corresponding location on the other hemisphere
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basal ganglia
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structures that control movement
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hippocampal formation
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memory
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diencephalon
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somatic sensation
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thalamus
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regulates your metabolism, endocrine system
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reticular activating system
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arises from thalamus, functional system responsible for arousing cortex
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hypothalamus
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regulates reproductive behavior and physiology, desire/need for food and water, im full! metabolic functions
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cerebellum
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coordinates motor commands with sensory inputs...communicates w everyone around it
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superior, middle, inferior cerebellar penduncle
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located in CEREBELLUM- communicates w the rest of the nervous system
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brainstem
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combo of complex thought in the brain, as well as the quick impulses of the spinal cord
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medulla oblongata
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most inferior part of brainstem- injury- death
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pons
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relays sensory information between the cerebellum and cerebrum, aids in relaying other messages in the brain, controls arousal, and regulates respiration
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pyramidial decussation
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bundle of fibers that forms corticospinal tracts- i.e tells body to move
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substantia nigra
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plays important role in reward, addiction, movement
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dermatome
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area of skin mainly supplied by a single spinal nerve
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lower motor neuron
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brings message from brain, to spinal cord, to muscles
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upper motor neuron
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message originates in brain and travels down the spinal cord, ends before sent directly to place of movement
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corticospinal tract
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axons traveling from cerebral cortex of brain to spinal cord
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corticobulbar tract
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message travels from cerebral cortex to brainstem
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