BIO 225 Exam 4 Tara Duck Questions and Verified Answers | Passed | A+

spinal cord : begins at the foramen magnum end at L1 and L2 ascending descending cervical (arms) and lumbosacral enlargements (legs) reflex center A thick cord of tissue that starts at the head. Spinal cord-white mater : White columns Dorsal funiculus Ventral funiculus lateral funiculus 2 Spinal cord-nerves : Dorsal root ganglion Dorsal root spinal nerve ventral root spinal cord gray matter : Somatic and visceral sensory and somatic and visceral motor nuclei (know where these are on figure) spina bifida : congenital defect in which one or more vertebrae fail to complete vertebral arch for enclosure of the spinal cord Folic acid reduces risk spinal cord meninges : dura mater, arachnoid mater, pia mater 3 sensory areas of cerebral cortex : General senses and special senses General senses of the cerebral cortex : Pain, temperatures, touch, pressure, and vibration Proprioception Special sense of the cerebral cortex : vision, hearing, taste (gustation), smell(olfactory), equillibrium(vestibular) cerebral lateralization : the division of labor between the two cerebral hemispheres such that each hemisphere is specialized for particular types of processing Left-controls language, math, logic (90%) Right-controls visual-spatial skills, intuition, emotion, artistic, and musical skills (10%0 decussation : cross- over contralateral 4 relay : chain of neurons somatotopy : spatial representation of body on cortex symmetry : pair pathways what on left is on righ