Parts of the Brain Flashcards
Thalamus
all sensory messages (except smell) are routed through here on the way to the cortex; sends messages from the cortex to medulla and cerebellum
Medulla
controls most basic functions such as heartbeat and breathing (base of brain stem)
Reticular formation
nerve network; enables alertness from coma to wide awake; filters incoming sensory information (above Pons and below Thalamus)
Pons
helps coordinate automatic and unconscious movements (above Medulla)
Brainstem
Coordinates the body
Basal ganglia
-(deep beneath cerebral cortex) process information on movement and in fine-tuning the activity of brain circuits that determine best possible response in a given situation
Cerebellum
helps coordinate voluntary movement; enables nonverbal learning and memory (underneath occipital and temporal lobes)
Limbic system
coordinates emotions like fear and aggression, basic drives like sex and hunger, and formation of episodic memories
Hippocampus
linked to memory; processes conscious episodic memories; works with amygdala to form emotionally charged memories (inner part of the brain)
Amygdala
linked to emotion; helps process emotions, especially fear and anger (lima bean shape)
Hypothalamus
regulates body temperature and ensures adequate food and water intake; involved in sex drive; directs the endocrine system via messages to the pituitary gland (below the Thalamus)
Corpus callosum
band of axons connecting the hemispheres
Ventricles
a series of cavities that carry cerebrospinal fluid which cushions blows and reduces the pressure at the base of the brain and carries away toxic waste and moves hormones between widely separated regions of the brain (middle of brain)
Prefrontal cortez
in front of frontal lobe; carries out executive functions
Motor cortex
controls the body’s right side (left hemisphere section)