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ANAT & PHYS I: CNS

ANAT & PHYS I: THE CNS

QuestionAnswer
At three weeks’ gestation, the ectoderm forms the ----, which invaginates, forming the -----, flanked on either side by neural folds. Neural plate, neural groove
By the fourth week of pregnancy, the neural groove fuses, giving rise to the______ , which rapidly differentiates into the ____. Neural Tube,Central Nervous System
The neural tube develops constrictions that divide the three primary brain vesicles give another name for: (forebrain),(midbrain), and (hindbrain) the prosencephalon, mesencephalon, and rhombencephalon.
Located in the frontal lobe. Allows conscious control of precise, skilled, voluntary movements. PRIMARY MOTOR CORTEX
Located in the frontal lobe.Controls learned, repetitious, or patterned motor skills. THE PREMOTOR CORTEX
Located in upper temple lobe.A motor speech area that directs muscles of the tongue. Is active as one prepares to speak BROCA'S AREA
Located in the frontal lobe. Coordinates simultaneous or sequential actions. Involved in the planning of movements PREMOTOR CORTEX
Located anterior to the premotor cortex and superior to Broca’s area.Controls voluntary eye movement Frontal eye field
control voluntary movement Motor areas
conscious awareness of sensation Sensory areas
integrate diverse information Association areas
caricature of relative amounts of cortical tissue devoted to each motor function Motor homunculus OF THE PRIMARY MOTOR CORTEX
Receives information from the skin and skeletal muscles. Exhibits spatial discrimination Primary Somatosensory Cortex
Located posterior to the primary somatosensory cortex, Integrates sensory information (temperature, pressure) Somatosensory association cortex
Forms comprehensive understanding of the stimulus. Determines size, texture, and relationship of parts. Somatosensory association cortex
Surrounds the primary visual cortexInterprets visual stimuli (e.g., color, form, and movement) by using past visual experiences Visual association area
Seen on the extreme posterior tip of the occipital lobe. Receives visual information from the retinas. Primary visual (striate) cortex
Located at the superior margin of the temporal lobe. Receives information related to pitch, rhythm, and loudness Primary auditory cortex
Afferent fibers from smell receptors in the superior nasal cavities send impulses along the olfactory tracts. Results in conscious awareness of different odors. Olfactory(smell)cortex
Located in the parietal lobe deep to the temporal lobe. Involved in the perception of taste stimuli Gustatory(taste)cortex
Responsible for conscious awareness of balance (position of the head in space Vestibular(equilibrium)cortex
Tumors or other lesions of the ________ may cause mental and personality disorders like mood swings and loss of judgment, attentiveness, and inhibitions prefrontal cortex
_____ will increase heart and respiratory rates during a fight-or-flight situation and decrease activity of digestive and elimination organs. The sympathetic division
Created by: ascpstudent100