Cerebral Hemispheres:
• Localizes and interprets sensory inputs
• Controls voluntary and skilled skeletal muscle activity
• Acts in intellectual and emotional processing
Cortex: Gray Matter
Cerebral Hemisphere:
Subcortical motor centers help control skeletal muscle movements
Basal Nuclei
Diencephalon:
• Relays sensory impulses to cerebral cortex
• Relays impulses between cerebral motor cortex and lower motor centers
• Involved in memory
Thalamus
Diencephalon:
• Chief integration center of autonomic (involuntary) nervous system
• Regulates body temperature, food intake, water balance, and thirst
• Regulates hormonal output of anterior pituitary gland and acts as an endocrine organ (producingADH and oxytocin)
Hypothalamus
Diencephalon:
Limbic system
Brain Stem:
Midbrain
Brain Stem:
Pons
Brain System:
• Relays ascending sensory pathway impulses from skin and proprioceptors
• Contains nuclei controlling heart rate, blood vessel diameter, respiratory rate, vomiting, etc.
• Relays sensory information to the cerebellum
• Contains nuclei of cranial nerves VIII–XII; contains projection fibers
• Site of crossover of pyramids
Medulla oblongata
Brain System:
• Maintains cerebral cortical alertness; filters out repetitive stimuli
• Helps regulate skeletal and visceral muscle activity
Reticular formation: A functional system
Cerebellum