Chapter 13 (1)

Cerebral hemispheres

Cerebral cortex

• Conscious thought
• Memory storage and processing
• Regulation of skeletal muscle contractions

Deep grooves that subdivide hemispheres

A fold in the cerebral cortex that increases the surface area

A shallow depression in the cerebral cortex that separates adjacent gyri

Cerebellum

Coordination and modulation of motor commands from cerebral cortex

Structural and functional link between cerebral hemispheres and rest of CNS

• Almost completely covered by cerebrum
• Between cerebral hemispheres and above the brainstem
• Connected to midbrain below
• Surrounds 3rd ventricle
• Mainly gray matter

• Epithalamus
• Thalamus
• Hypothalamus

very small region on upper, posterior part of thalamus; most dorsal part of diencephalon; forms roof of third ventricle

Relay and processing centers for sensory information; Forms walls of third ventricle, bulges in from each side

forms lower walls and floor of third ventricle, below thalamus

• Emotions
• Autonomic function
• Hormone production

• optic tracts
• optic chiasma
• mammillary bodies

Olfactory relay stations in the olfactory pathways.