PSY2061 Lecture Notes - Lecture 1: Bipolar Neuron, Unipolar Neuron, Subarachnoid Space
21 Aug 2018
School
Department
Course
Professor
Document Summary
Division of the nervous system that is located within the skull and spine (brain and spinal cord) Division of the nervous system that is located outside the skull and the spine; comprises of two divisions: the somatic nervous system and the autonomic nervous system. 3 principles of the sympathetic and parasympathetic nerves. Sympathetic nerves stimulate, organize and mobilize energy resources in threatening situations where as parasympathetic nerves act to conserve energy. Each autonomic target organ receives opposing sympathetic and parasympathetic input, and its activity is controlled by relative levels of sympathetic and parasympathetic activity. Sympathetic changes are indicative of psychological arousal whereas parasympathetic changes are indicative of psychological relaxation. Dura mater: outer meninx of the cns. Arachnoid membrane: 2nd layer of the meninx. Pia mater: inner most meninx, very delicate, adheres to the surface of the cns. Network of capillaries that produce into the ventricles from the pia mater. Special structure of cerebral blood vessels, only allows certain molecules through.
