Development of the Nervous System Flashcards
Ectoderm
First layer, CNS comes from here
Mesoderm
Middle layer, in charge of bones, muscle, and tissue
Endoderm
Last layer
Neuralation
Embryo/disk develops and terns into a tube, neural folds form, the neural tube becomes entire CNS
What emerges from the neural tube?
Forebrain, midbrain, hindbrain
What does the forebrain develop into?
telencephalic vesical, diencephalon, optic vesicles
Lateral Ventricles
Connected to cerebral cortex/basal telencephalon
Third Ventricle
Connected to thalamus and hypothalamus
Pons
Bridge to the brainstem
Cerebellum
“small brain”
Pineal Body
Responds to circadian rhythm
Grey Matter
Neuronal cell bodies
White Matter
Collection of CNS axons, corpus callosum is the largest white matter connection
Gyrus/Gyri
Hill or bumps
Frontal Lobe
Motor and higher cognitive function
Sulcus/Sulci/Fissure (if deep)
Valley
Temporal Lobe
Auditory Processing
Parietal Lobe
Different sensory perception and spatial awareness
Occipital Lobe
Vision
Sylvian Fissure
Reveals insula which is in charge of taste and processes visceral reactions
Precentral Gyrus
Primary Motor Cortex
Postcentral Gyrus
Primary sensory cortex
Superior Temporal Gyrus
Primary auditory cortex
Angular Gyrus
Language network, lesion might cause problems in reading or writing
