New Material Study Guide Nervous System organization In the CNS What is a Nuclei? What is a Tract? In the PNS What is the Ganglion? What is a Nerve? Development of the CNS What are Neural Crest Cells? What is the Neural Tube? Brain Development Primary- What 3 “-brain” (also have a –cephalon name) Secondary- What are the 5 “-cephalon” What does each “-cephalon” develop into in an adult brain? Ventricles House? Where is each ventricle? What is CSF? Spinal Cord Where does it originate? What are the enlargements? How many spinal nerves total? How many for Cervical, Thoracic, Lumbar, Sacral, Coccygeal? What is the Conus Medullaris? What is the Quada Equina? Meninges What are the three layers? What does each layer do and where are the located with regards to the spinal cord (innermost, middle, outer) Spinal Cord Cross Section What is White Matter? What are the parts of the white matter? What is Grey Matter? What are the parts of the grey matter? What are the “gaps”? What are the spinal nerves or “roots”? What are the responsible for? Reflex Arc What are the 5 parts of the Reflex Arc? What do each do? Parts of the brain and their functions Medulla What does the discrete nuclei do? (3 major functions) What are the Medullary Pyramids? Pons What is the ventral aspect? What is the dorsal aspect? Cerebellum What are the 3 functions of the cerebellum? What are the two cells of the cerebellum? What are the cerebellar peduncles? What do each of the 3 do? What happens if the cerebellum is damaged? Midbrain What is the Corpora quadrigemina What does the superior colliculi do? What does the inferior colliculi do? What is the cerebral aqueduct? What is the Substantia nigra? What are its major functions? Parkinson’s Disease= Red Nuclei does? Diencephalon Thalamus functions Epithalamus houses what gland Hypothalamus has many functions such as Cerebrum Basal NucleiCorpus CallosumGyriSulciCerebral CortexCerebral Medulla- LOBES FrontalBroca’s Area= Pre-frontal cortex= ParietalWernike’s Area= OccipitalTemporalLIMBIC SYSTEM Cingulate GyrusHippocampus- AmygdalaDisorders of the AmygdalaCRANIAL NERVES ARE THEIR FUNCTIONS I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII.