Brain and Spinal Cord Lab

What neurons deliver information to the CNS

Sensory Neurons

What neurons leave the CNS and direct responses of effectors

Efferent Neurons

In white matter what tracts carry sensory information?

Ascending

In white matter what tracts carry motor information?

Descending

What are the three major tracts (sensory) ?

Posterior Column (gracile fasciculus and cuneate fasciculus)

Spinothalamic

Spinocerebellar

What tracts direct skeletal muscle contraction?

Extrapyramidal

What tracts direct glands, cardiac muscle and smooth muscle?

Pyramidal

The corticospinal carries 3 pairs of descending tracts directing what kind of control of skeletal muscles?

Voluntary

The subconscious motor pathways consist of 4 tracts directing what kind of motor control

involuntary

In the cerebral cortes where is the gray matter?

On the inside

In the cerebral cortex where is the white matter?

On the outside

What are ventricles?

Cavities inside the brain filled with cerebrospinal fluid