4.05 Brain Structures Flashcards
corpus callosum
connects left and right hemispheres of the brain
cerebral cortex
controls complex thought processes
thalamus
part of the forebrain that relays information from sensory organs to the cerebral cortex
cerebellum
part of the hindbrain that controls balance and maintains muscle coordination
pons
part of the hindbrain that relays messages between the cerebellum and the cortex
reticular formation
a system of nerves running from the hindbrain and through the midbrain to the cerebral cortex, controlling arousal and attention
medulla
part of the hindbrain that controls heartbeat, breathing, and swallowing
hippocampus
plays a role in our learning, memory, and ability to compare sensory information to expectations
pituitary gland
regulates other endocrine glands
hypothalamus
part of the forebrain that regulates the amount of fear, thirst, sexual drive, and aggression we feel
parts of the hindbrain:
medulla, reticular formation, cerebellum, pons
limbic system
a group of several brain structures located under the cortex and involved in learning, emotion, memory, and motivation
parts of the limbic system:
thalamus, cingulate cortex, hippocampus, amygdala, hypothalamus
cingulate cortex
involved in emotional and cognitive processing
amygdala
influences our motivation, emotional control, fear response, and interpretations of nonverbal emotional expressions
corticalization
allows a much larger area of cortical cells to exist in the small space inside the skull
Frontal lobe
responsible for higher mental processes and decision making as well as the production of fluent speech: association cortex and Broca’s area
Parietal lobe
containing centers of touch, taste, and temperature sensations: somatosensory cortex
occipital lobe
visual centers of the brain: visual cortex and association cortex
temporal lobe
responsible for the sense of hearing and meaningful speech: wernicke’s area and auditory association cortex
somatosensory cortex
responsible for processing information from the skin and internal body receptors for touch, temperature, body position, and possibly taste
motor cortex
controls the voluntary muscles of the body
visual cortex
processes visual information from the eyes
primary visual association cortex
identifies and makes sense of visual information
auditory cortex
processes auditory information from the ears
auditory association cortex
identifies and makes sense of auditory information
spatial neglect
condition produced by damage to the association areas of the right hemisphere (inability to recognize objects or body parts in the left visual field)
Split-Brain
severed corpus callosum
left hemisphere
control language, writing, logical thought, analysis, mathematical abilities
right hemisphere
controls emotional expression, spatial perception, recognition of faces, patterns, melodies, and emotions