April 10 Flashcards
Cerebellum
Controls muscle tone and balance
Hindbrain
Cerebellum Medulla oblongata Reticular activating system (RAS) Pons Thalamus Oldest part of the brain to develop in evolutionary terms
Medulla oblongata
Controls involuntary actions, such as breathing, digestion, heart rate, and swallowing (basic life functions)
Reticular activating system (RAS)
Controls arousal (wakefulness and alertness) aka reticular formation
Pons
Latin for “bridge”, passes neural information from one brain region to another
Also implicated in REM sleep
Thalamus
Relays sensory information, receives and directs sensory information from visual and auditory systems
Midbrain
Major components: tectum and tegmentum
Tectum vs tegmentum
Tectum: brains roof
Tegmentum: brains floor
Govern visual and auditory reflexes such as orienting to a sight or sound
Forebrain
Limbic system, hippocampus, amygdala, and hypothalamus
Hippocampus
Involved in processing and integrating memories
Damage here does not eliminate existing memories bc memories are stored in the neocortex, but rather it prevents the formation of new memories
Condition of damage to hippocampus: anterograde amnesia
Damage here does not eliminate existing memories bc memories are stored in the neocortex, but rather it prevents the formation of new memories
Amygdala
Implicated in the expression of anger and frustration
Cerebral cortex
Wrinkled outer layer of the brain
Involved in higher cognitive functions such as thinking, planning, language use, and fine motor controls
Sensory cortex
Receives sensory input
Motor cortex
Sends out motor information