The Central Nervous System
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each of the black spaces below before clicking
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| During embryonic development, what forms from a groove in the ectoderm by the 20th day and becomes the CNS? | Neural tube
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| During embryonic development what cells develop where the tube fuses and become ganglia of the PNS? | Neural crest
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| During the 4th week of embryonic development, what are the names of the 3 swellings form on the neural tube? | Forebrain, midbrain, and hindbrain
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| During the 5th week of embryonic development, what are the 2 areas that the forebrain (prosencephalon) is divided into? | Telenchphalon and diencephalon
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| During the 5th week of embryonic development, what 2 areas are the hindbrain (Rhombencephalon) divided into? | Metenchephalon and myelencephalon
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| During embryonic development, what part of the brain grows disproportionately forming the hemispheres of the cerebrum? | Telencephalon
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| The ________and the _________ __________ are remnants of a hollow part of the neural tube that contains the CSF. | Ventricles/Central Canal
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| What are the 3 primary vesicles in the embryonic development of the CNS? | Prosencephalon,Mesencephalon, and Rhombencephalon
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| What part of the cerebral cortex contains the auditory centers; receives sensory info from the cochlea and also links and processes auditory and visual info? | Temperal lobe
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| What part of the cerebral cortex is responsible for vision and coordination of eye movements? | Occipital
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| What part of the cerbral cortex plays a role in memory encoding, integrates sensory info with visceral responses, and assesses bodily states that accompany emotions? | Insula
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| What term describes speech and language disorders due to brain damage? | Aphasias
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| What part of the brain is responsible for speech? | Broca's area
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| What part of the brain is involved in language comprehension? | Wernicke's area
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| What 2 areas of the brain in crucial for emotions including aggrssion, fear, feeding, sex and goal-directed behaviors? | Hypothalamus and limbic system
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| What type of long-term memory includes memories of simple skills and conditioning? | Non-declarative (explicit)
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| What type of long-term memory includes verbal memories? | Declarative (implicit)
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| What is the term that describes people who have impaired declarative memory? | Amnesiacs
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| What part of the brain is critical for acquiring new memories and consolidating short into long term memories? | Hippocampus
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| What part of the brain is crucial for fear memories? | Amygdala
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| Higher order processing and planning occur in what part of the cortex? | Prefrontal
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| The storage of memory is found in what area of the brain? | Cerebral hemispheres
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| What type of information comes from the body and travels to the brain in ascending spinal tracts? | Sensory
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| What activity from the brain travels to the body in descending spinal tracts? | Motor
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| Descending spinal tracts are divided into what 2 major groups? | Pyramidial (corticospinal) tracts and Extrapyramidal (reticulospinal) tracts
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| Where does the pyramidal tracts originate? | Motor cortex
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| What do the pyramidal tracts control? | Fine movements
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| What tracts descend from the cerebral cortex to the spinal cord without synapsing? | Pyramidal tracts
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| What are the descending tracts that have many synapses and influence movement indirectly? | Extrapyramidal tracts
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| What tracts cross so that brain hemispheres receive info from opposite sides of the body? | Ascending sensory tracts
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| What nervous system consists of nerves that exit from the CNS and spinal cord, and their ganglia? | PNS
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| The dorsal root of the spinal nerves are composed of what kind of fibers? | Sensory
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| The ventral root of the spinal nerves are composed of what kind of fibers? | Motor
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| Most spinal nerves are _______ nerves that separate next to the spinal cord into dorsal and ventral roots. | Mixed
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| What 2 things can impede learning and cause the hippocampus to shrink? | Stress or depression
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| What is the adult derivative of the Telencephalon? | Cerebral Hemisphere
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| What is the adult derivative of the Diencephalon? | Thalamus and hypothalamus
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| What is the adult derivative of the Metenchephalon? | Pons and Cerebellum
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| What is the adult derivative of the Myelencephalon? | Medulla Oblongata
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