FINAL (midterm) Flashcards
Four Lobes of brain and function
frontal= reasoning, motor skills, higher level cognition
parietal=sensory information; touch, pressure, pain
temporal= auditory
occipital= vision
knee jerk reflex
monosynaptic neuronal circuitry
2 major parts of CNS
brain and spinal cord
language impairment and right sided weakness can be the result of
left cortical stroke
the minimum time of blood supply arrest that results in irreversible brain damage
5-6 minutes
Blood Brain Barrier
- first line of defense for the brain from harmful agents
- restricts mov’t of bacterial or viral agents from the blood to brain
- may keep antibiotics out of brain
Middle Cerebral artery
artery that supplies the laterally located language cortex in the brain
Cerebellum
- constant monitoring of the cortical motor output
- error-control device for rapid, alternating, and sequential movt’s
- correction of discrepant movements
Neural Tube develops into
brain and spinal cord
Contralateral deficit
a lesion above the level of decussation of nerve fibers
Corpus Collosum
largest interhemispheric commissural fiber bundle
Three parts of brain stem
pons, medulla, midbrain
Sodium potassium pump
adjusts distribution of ions across the cell membrane
deep brain structure which is a relay system
Thalamus
deep brain stimulation
surgical procedure involving electrical stimulation of the thalamus for parkinsons
Corticospinal
tracts travel from the cerebral cortex and terminate in the spinal cord
Cerebralbulbar
tracts travel from the cerebral cortex and terminate in the brainstem
Typical conversational loudness
60-70 dB
Nystagmus
reflexive, conjugate eye movement which reflects both normal function and pathology
The basal ganglia sends _______ info to cortex and the cerebellum sends _______ info to cortex
inhibitory; excitatory
Romberg Test
differentiates btwn cerebellar and vestibular abnormalities
Bradykinesia
slow movement
Ataxic-dysarthria
speech diagnosis resulting from cerebellar damage and resulting in slow, uncoordinated, staccato-like speech
Symptoms of normal pressure hydrocephalus (WWW)
weird, wobbly, wet
Centrality
CNS integrates all incoming and outgoing info and generates appropriate responses
Laterality
left hemisphere dominant for language
Hierarchy
the cerebral cortex is the highest level and the spinal cord is the lowest
Interconnectivity
the cerebrum is connected through association and commissural fibers
Culturally neutral
brain potential is independent of gender, color, cultural variations
Functional networking
Distinct parallel pathways conduction different types of info
Topographical representation
The homunculus is an illustration of human body superimposed on the brain
Plasticity
The brain can change as a result of experience
gyrus
elevated region
sulcus
groove
afferent
mediate toward CNS
- sensory
- recieve
effernet
mediate away from CNS
- motor
- act, effect
gray matter
cell bodies in CNS
white matter
axonal bundles in CNS
nerve cells
cells that conduct impulses
glial cells
supporting cells
Golgi Tendon Organs Function
monitor muscle tension during muscle contraction
