Flashcards in Central Nervous System Deck (102)
What is the reticular formation associated with?
Consciousness, arousal, attention, movement, and pain
Controls speed, intensity, coordination, direction of complex voluntary movements, speech, gives us smoothness and gracefulness to our movements, and balance
Problems with this area result in too little movement or too much movement like in Parkinson's
Having blindsight when this area is damaged
Postcentral gyrus. Part of parietal lobe responsible for touch sensory input
Primary somatosensory cortex
What do homunculus' represent?
Different parts of the body have different amounts of brain space for sensory and motor
Primary visual cortex
What does the reticular formation do?
This area is the origin of photosensitive epilepsy
Separates the precentral and post central gyri
Why is the brain wrinkly?
Increase surface area
Associated with motor control and reward
Lowered areas of the brain
Receives sensory info and regulatory info
What does the medulla do?
Vital processes necessary for life including breathing, HR and BP
Visual gaze of auditory stimuli. Midbrain
Plays a role in different stages of sleep and decides if we should wake up or not
Part of the hypothalamus, memory. Limbic
Primary auditory cortex
What path does smell take that is different than other senses
It goes to the cortex then the thalamus
Impulse control and delayed gratification (waiting for a reward)
Where is the periaqueductal gray
Near the area where the CSF would flow through
Executive functions like attention, working memory, and goal directed behavior
What is cerebellar agenesis?
Never growing a cerebellum. The gap is filled with CSF
Spatial info processing and stress feedback
Plays key roles in threat detection, fear, excitement, and arousal by sending messages to other areas
Gateway to the cortex or sensory switchboard
This area is juxtaposed to the somatosensory cortex
Declarative memory formation and stress. Limbic