Brain Flashcards
Hindbrain
Cerebellum, medulla, pons
Cerebellum
Movement
Equilibrium
Sensory info
Medulla
Unconscious vital functions
Pons
Sleep and arousal
Midbrain
Sensory processes
Dopamine releasing neurons
Voluntary movement
Reticular formation
Through midbrain and hindbrain, in core of brain stem regulates sleep and arousal
Forebrain
Thalamus Hypothalamus Cerebrum Limbic system Basal ganglia Pituitary gland
Thalamus
All sensory info passes through
Hypothalamus
Regulates basic biological needs
Limbic system
Hippocampus
Amygdala
Dopamine, glutamate
Hippocampus
Memory
Prediction
Imagination
Amygdala
Fear
Cerebrum
Higher thinking Cerebral cortex is outer layer Divided in two hemispheres each with 4 lobes Gyrus- bumps Sulcus- valleys
Four lobes
Occipital
Parietal
Temporal
Frontal
Occipital lobe
Primary visual cortex
Visual info sent here
Parietal lobe
Primary somatosensory cortex
Sense of touch
Between temporal and parietal is Wernikes area
Temporal
Primary auditory cortex at top of lobe
Auditory processing
Frontal
Primary motor cortex
Movement of muscles
Broca’s area
Prefrontal cortex
Part of frontal lobe Memory Process current info Reasoning Decision making
Mirror neurons
In frontal and parietal lobes
Neurogenesis
Formation of new neurons
Unlimited
Declines with age
In olfactory bulb and hippocampus
CT
Computer enhanced xrays
Structure, horizontal image
PET
Radioactively tagged glucose injected
Xrays
Brian function via blood flow or metabolic activity
MRI
Magnetic fields
Radio waves
Computer enhancement
3D structure, high resolution