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Parts a the BRAIN
Locations, Structure, Function
23
Psychology
Undergraduate 1
10/15/2013

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Term
Brain Stem
Definition
The portion of the brain formed by the swelling of the spinal cord as it enters the skull; its structures regulate basic survival functions of the body, such as heart rate and respiration
Term
Cerebellum
Definition
A convoluted hindbrain structure involved in involuntary motor coordination (nerve reflexes rapid movements) and some aspects of learning and memory
Term
Medulla
Definition
A brain stem structure that controls vital functions, including heartbeat and respiration
Term
Pons
Definition
-Has clusters of neurons that Regulate sleep
-Involved in dreaming
-Contains motor neurons, controls muscles & glands in face & neck
-Controls vital functions, esp respiration.
-damage can produce death
-Just above Medulla
-Bridge between higher and lower levels of Nervous system
Term
Midbrain
Definition
Brain structures above the hindbrain that are involved in sensory and motor functions and in attention and states of consciousness.
Term
Reticular Formation
Definition
Group of Fibres that carries stimulation related to sleep and arousal through brain stem
-Beneath pons, top of the spinal cord
Term
Forebrain
Definition
Brain structures above the midbrain, including the thalamus, hypothalamus, limbic system and the cerebral hemispheres; involved in higher-order sensory, motor, and cognitive functions.
Term
Thalamus
Definition
Relay centre for incoming sensory information
Term
Basal Ganglia
Definition
Part of the Brain that is critical for voluntary Motor Control. made up of 5 distinct structures
Term
Hypothalamus
Definition
A forebrain structure located below the thalamus and above the pituitary gland that controls autonomic hormonal processes and plays a major role in many aspects of motivation and emotional behaviour
Responsible for the 4 F's: Fighting, Fleeing, Feeding, Mating
Assisted by the Limbic system
Term
Limbic System
Definition
Helps to coordinate behaviours needed to satisfy motivational and emotional urges that arise in the hypothalamus.
Involved in memory
Term
Hippocampus
Definition
A structure of the limbic system that plays a key role in the formation and storage of memories
Term
Amygdala
Definition
A Limbic system structure that helps to organize emotional response patterns.
involved in emotion and aggression
Term
Nucleus Accumbens
Definition
Surounds thalamus.
Limbic system structure involved in motivation and reward.
Term
Cerebral Cortex
Definition
The grey, convoluted outer covering of the brain that is the seat of higher-order sensory, motor, perceptual, and mental processes.
Term
Frontal Lobe
Definition
THe anteriour (front) portion of the cerebal's hemispheres that includes Broca's speech production area, the motor cortex, and associative cortex involved in planning and problem solving
Term
Motor Cortex
Definition
stimulates muscles that produce speech
Term
Somatic Sensory Cortex
Definition
Receives sensory input that gives rise to our sensations of touch, hot and cold, and kinesthesis (sense of balance and body movement)
Term
Wernicke's Area
Definition
Midbrain
Speech understanding and comprehension
Term
Broca's Area
Definition
A region of the left frontal lobe involved in speech production
Term
Association Cortex
Definition
Cortical areas that are neither motor nor sensory but are thought to be involved in higher processing of information
Term
Prefrontal Cortex
Definition
Right behind the forehead
Executive functions: mental abilities - goal setting, judgment, strategic planning, impulse control.
Term
Corpus Callosum
Definition
A broad band of white, myelinated fibres that connect the left and right cerebral hemispheres and allow the two hemispheres to communicate with each other
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