- *thalamus* is responsible for perception of various sensations such as pain
and temperature
Sructures of the Brainstem (4) - ANSWER 1. Medulla oblongata
2. Pons
3. Midbrain
4. Diencephalon
The spinal cord - ANSWER - 40-50 cm long
- begins at foreman magnum and continues until L1-L2
- Gray matter consisting of anterior and posterior horns contains nerve cell
bodies associated with sensory pathways in the autonomic nervous system
- white matter of spinal cord contains ascending and descending spinal tracts
- upper motor neurons
Posterior tract of spinal cord (ascending) - ANSWER Carries fibers for
*sensation* of fine touch, to pint discrimination and proprioception
Descending spinal cord tracts - ANSWER Convey impulses from the brain to
various muslce groups
*motor*
Upper motor neurons of spinal cord - ANSWER Nerve cell bodies for motor
pathways that all begin and end within central nervous system
Spinal Nerves - ANSWER - 31 pairs of nerves arising from the spinal cord and
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