PSY 250 Chapter Notes - Chapter 3: Intellectual Disability, Traumatic Brain Injury, Grey Matter
Document Summary
Chapter 3: the organization and functions of the nervous system. The nervous system is made up of 2 subunits: the central nervous system (cns) and the. The cns consists of the brain and spinal cord. Nerve: bundle of axons in the pns. Tract: bundle of axons in the cns. Ganglion: bundle of cell bodies within the pns. Nucleus: bundle of cell bodies within the cns. In development, the cns starts off as a hollow tube that eventually forms into the forebrain, midbrain, and hindbrain. The lower part of the tube forms into the spinal cord. Forebrain: 2 cerebral hemispheres, thalamus & hypothalamus. The cerebral hemisphere is separated into two by the longitudinal fissure. Each hemisphere receives sensory information and sends out motor information to/from the parts from the opposite side of the body. Convoluted: te(cid:396)(cid:373) that des(cid:272)(cid:396)i(cid:271)es the appea(cid:396)a(cid:374)(cid:272)e of the (cid:271)(cid:396)ai(cid:374)"s su(cid:396)fa(cid:272)e (cid:272)ause (cid:271)(cid:455) the p(cid:396)ese(cid:374)(cid:272)e of grooves and ridges.
