Tracts: Sensory And Motor + Higher Learning

Posterior column is? (sensory, motor, or both)

Sensory

Spinothalamic (sensory or motor)

Sensory

Spinocerebellar is? (sensory, motor, or both)

Sensory

Is the spinocerebellar unconscious or concious?

Unconscious

What two tracts are apart of the posterior column?

Fasciculus Gracilis and Fasciculus cuneatus

1st order neuron synapses to..

to CNS ( or dorsal root ganglion)

2nd order neuron synapses to…

to brain-stem

3rd order neuron synapses to…

to thalamus THEN primary sensory cortex

The MAIN motor tract is?

Corticobulbar

List the medial motor tracts…

Vestibulospinal, tectospinal, reticulospinal

What is the one lateral motor tract?

Rubrospinal

List which motor tracts are conscious and unconscious?

Conscious = corticobulbar, corticospinal

Unconscious = reticulospinal, tectospinal, vesibulospinal, and

 rubriospinal

Upper motor synapses from

from Primary motor cortex to L1-L2

Lower motor synapses from

below spinal cord to effector skeletal muscle

Delirium is..

Disorientation, hallucinations, confusion

Dementia is…

a progressive decline in memory, orientation, and cognitive ablilty.

Confusion is…

reduced awareness, alternates between drowsiness an excitability.

Normal consciousness

A state of being aware of external environment

Somnolence (conscious state)

Extreme drowsiness BUT will respond to stimuli

Chronic vegetative state

CONSCIOUSNESS but unresponsive

Alseep (unconscious state)

can be aroused by light stimuli (touch, sound)

Stupor (unconscious state)

Can be aroused by EXTREME/REPEATED stimuli

Coma (unconscious state)

CanNOT be aroused and does NOT respond to stimuli

The fasciculus Gracilis sensory info is

Below the diaphragm

The fasciculus Cutaneatus sensory info is

Above the diaphragm