Neuro Flashcards
Central nervous system made up of:
Brain
Spinal cord
Peripheral nervous system made up of..
Everything else!
* “All nerve fibers outside
the brain and spinal cord”
* Includes autonomic
nervous system
Cerebral cortex (location, function)
cerebrum’s outer layer of nerve cells; controls most conscious processes
Cerebral cortex is center of functions governing thought, memory, reasoning, sensation, and voluntary movement
LOBES OF THE CEREBRAL CORTEX
Parietal
occipital
frontal
temporal
Parietal lobe (location/function)
Sensation/ Top back
Frontal lobe (Location/function)
“Personality”
* Behavior
* Emotions
* Intellectual
function
* Broca’s area
**Front lobe
Occipital lobe (Location/function)
Vision- back of head
Temporal lobe (Location/function)
Auditory
* Hearing
* Taste
* Smell
* Wernicke’s area
**Side of head
Cerebellum
The “auto pilot”
* Voluntary movement
* Equilibrium
* Muscle tone
* Coordination of movement
**below occipital
Brain stem
basic functions of life
Autonomic nervous system (Sympathetic)
“Fight or flight” response
* Increased HR, BP, RR
* Decreased Peristalsis
* Secretion of epinephrine and
norepinephrine
* Bronchiole dilation
Autonomic nervous system (parasympathetic)
Maintaining normal body
functions
* Maintains (“normalizes”) BP,
HR, RR
* Increased Peristalsis
* Bronchiole constriction
Brain stem is made up of…
Midbrain/Pons/Medulla
Midbrain controls…
thalamus/hypothalamus
Pons controls…
respiratory centers
Medulla controls…
- Ascending & descending tracts
- Autonomic centers
- Respiration, heart, GI
- CN VII to XII
Cerebellum
Complex motor coordination for
* Movement
* Equilibrium
* Posture
* Receives information about muscle/joint position
How to assess for cerebellar functin?
Romberg Test
* Finger-to-finger
* Finger-to-nose
* Heel-to-shin
* Rapid alternating
movements
Pathways- sensory and motor direction
sensory-ascending
motor-descending
Corticospinal (pyramidal) tract
MOTOR PATHWAY OF THE CENTRAL NERVOUS SYSTEM
Motor fibers travel from
motor cortex to
brainstem, where they
cross and go down the
opposite (contralateral)
side
Describing Motor Function
Spinothalamic tract
Sensory fibers: transmit
pain, temperature,
touch
Posterior column
- Position
- Vibration
- Fine touch
DESCRIBING SENSORY FUNCTION
- Touch, pain, temperature
* Light/dull (Sternal rub) - Vibration (tuning fork)
- Proprioception
- Romberg
- Stereognosis (Put object in persons hands)
- Graphesthesia (use pen to draw on their hands)
4 types of reflexes
- Deep tendon (DTR)
- Superficial
- Visceral
- Pathologic
Deep tendon reflex types
Biceps
* Triceps
* Brachioradialis
* Patellar
* Achilles tendon
* quadriceps