Brain Tidbit II: Brainstem. Medulla oblongata Pons Mesencephalon (midbrain). Cerebral hemispheres. Cerebellum. “2-oval skull” (brainstem deep and inferior). What is brainstem?. Interior inferior “core” of brain Includes all parts of brain except: Cerebral hemispheres Cerebellum
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Extension of spinal cord into cranial cavity
All motor and sensory information to and from peripheral nerves via spinal cord passes through
Central canal of spinal cord opens into fourth ventricle
What it does?
Autonomic nuclei control visceral activity
Cardio-vascular: heart rate, strength of heart contractions, vasomotor (blood vessel opening)
Respiratory rhythmicity center
Nuclei for Cranial Nerves VIII-XII
Relay for sensory and motor information to other brain regionsMedulla oblongata(relay from the spinal cord)