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Brain Quiz

Psychology

Hind Brain SURVIVAL: Medulla Oblongata-keeps heart beating and lungs breathing (involuntary) Pons-regulate the mechanics of breathing Cerebellum-coordinates voluntary movement Reticular Activating System(RAS)-involved in emotion/habituation
Mid-Brain COORDINATION OF MOTOR/SENSORY FUNCTIONS: Tegmentum-extrapyramidal(fine movements) and eye movement Tectum-superior and inferior colliculli(deals w/ position) vision and hearing Basis Pedunculli-movement:extrapyramidal/pyramidal(large,unfocused movement
Fore-Brain INFORMATION PROCESSING: Diencephalon: Thalamus-switchboard-all sensory messages (x smell) sent to thanlamus Hypothalamus-regulates thirst, hunger, pleasure, rage Telencephalon:highest part of brain Basal Ganglia-coordinates voluntary movement
Fore-Brain INFORMATION PROCESSING: Telencephalon:highest part of brain Basal Ganglia-coordinates voluntary movement Limbic System-memory and emotion Cerebral Cortex-thinking
3 neural pathways that make up the Spinal cord Ascending, Descending, Transverse
Ascending Pathways CARRY SENSORY MESSAGES TO BRAIN: Lemniscal Branch-light touch, movement, and limb position-kinesthetic sense Spinothamatic Branch-deep pressure, pain, and temerature
Descending Pathways CARRY MOTOR MESSAGES FROM BRAIN TO MUSCLE: Pyramidal Pathway-voluntary discrete movement, 80% contralateral Extrapyramidal Pathway-smooth integrated execution of movement
Transverse Pathways CARRY REFLEXES: *dont ascend to the brain have a shorter route- reflexes are adaptive
Afferent Nerves carry sensory impulses to the brain (also called sensory nerves0
Cranial Sensory Nerves carry impulses from head directly thru skull to the brain
Spinal Sensory Nerves carry impulses from the body to the spinal cord and on to the brain
Efferent Nerves carry messages from brain to body some are involved in voluntary functions, others with involuntary functions
Cranial Motor Nerves carry impulses from brain to muscles of head and face
Skeletal(somatic) motor nerves stimulate voluntary muscles
Autonomic Motor Nerves stimulate involuntary muscles(mostly parasympathetic functions)
Spinal Motor Nerves carry impulses from brain thru spinal cord to body muscles
Created by: kaylac1051
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