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45 Cards in this Set

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Alpha Bolck
suppression of the alpha wave pattern in the electroencephalogram
Amnesia
loss of memory
Aphasias
speech and language disorders
Brain Death
the irreversible loss of function of all neuronal structures above the spinal cord such that the brain no longer functions and has no possiblity of functioning again
Brain Waves
rhythmic voltage changes resilting predominantly from synchronized postsynaptic potentials in the superficial layers of the cerebral cortex
What are the four different categories of brain waves?
alpha, beta, theta, and delta waves
Brainstem
the stalk-like lower portion of the brain composed of all of the brain except the cerebrum and cerebellum
Central Nervous System
CNS --> the brain and the spinal cord
Cerebellum
A large portion of the brain posterior to the brainstem and inferior the cerebrum. Is responsible for equilibrium, motor coordination, and memory of leraned motor skills.
Cerebral Cortex
the outer portion of the cerebrum responsible for carrying out higher brain functions
Cerebral lateralization
the specialization of functions to one hemisphere
Cerebral Lobes
regions of the cerebral cortex described by the bones of the skull under which each is found
Cerebral Peduncles
regions of the midbrain containing nerve tracts and that help anchor the cerebrum to the brain stem
Cerebrum
largest region of the brain
Coma
the sever or total decreas in mental function due to structural or physiological impairment of the brain
Corpora Quadrigemina
a region of the midbrain containing the superior and inferior colliculi
Corpus Callosum
a large transverse tract of nerve fibers connecting the cerebral hemispheres
Descending Tract
a group of nerve fibers transmitting motor information to the muscles
Diencephalon
the portion of the brain between the midbrain and the corpus callosum
EEG Arousal
the transition of the brain wave pattern from an alpha to a beta pattern, indicative of increased invoked brain activity
Efferent Division
the portion of the PNS that transmits motor information to the effector organs
Electroencephalogram
a recording of the fequency and amplitude of the electrical activity of the brain
Ganglion
a group of nerve cell bodies in the PNS having similar functions
Gray Matter
tissue within the CNS comprised of nerve cell bodies, axons, dendrites and axon terminals
Hindbrain
the portiono f the brain extending rom the bottom of the midbrain to the top of the spinal cord
Insomnia
he inability to sleep
Medula Oblongata
the most inferior portion of the brainstem, immediately superior to the foramen magnum of the skill that connects the spinal cord to the rest of the brain
Midbrain
the portion of the brain between the diencephalons and the pos
Motivation
internal signals that shape voluntary signals
Narcolepsy
the sudden lapse into sleep
Nerves
a group of nerve fibers traveling together in the same general direction in the PNS
PNS
the nerves extending from the brain and spinal cord
Pons
a region of the brain stem that contains centers for resporation and acts as a relay stations
REM Sleep
the stage of sleep in which dreaming occuirs and is associated with rapid eye movement
Sleep Paralysis
inhibition of the skeletal muscles, execpt those of the eye
Sleep
a temporary stat of unconsciousness from which a person can awaken
Tract
a collection of axons in the CNS
White MAtter
tissue within the CNS comprised primarily of myelinated axons
Automatic Nervous System
the portion of the efferent divid=sion that regulatesthe activities of smototh muscles, cardiac muscles,glands,or the gastrointestinal system
Afferent Division
the portion of the PNS that transmits sensory information from the sensory receptors to the CNS
Efferent Division
the portion of the PNS that transmits motor information to the efector organs
Somatic Nervous System
the portion of the efferent division that regulates contraction of skeletal muscles
Meninges
connective tissue surrounding the brain ans spinal cord
Ganglion
a group of nerve cell bodies in the PNS having similar functions
Pathway Tract
a group of nerve fibers traveling together in the same gerneral location in the CNS