PSY290H1 Lecture Notes - Lecture 2: Fourth Ventricle, Endoplasmic Reticulum, Parasympathetic Nervous System
Document Summary
Brain: there are 12 cranial nerves, they l eave from the brain stem and the forebrain, each has a different function and functional organisation. In between each of the vertebrae, there is a spinal nerve above and one below, making 31 spinal nerves: peripheral nervous system. Efferent ( going-away ) nerves: connects with skin and muscles to connect with outside world. Afferent nerves: come intor the spinal cord and brain. Efferent nerves (separated anatomically: sympathetic nervous system. Causes rapid release of energy such as in fight or flight reactions. A release of energy for re/action: parasympathetic nervous system. Accumulation of energy by way of the digestive tract. The cerebral ventricles: originate from 2 major spaces. The 2 lateral ventricles within the forebrain. The third ventricle in the diencephalon (sp??) An aqueduct that carries liquid down is close to the fourth ventricle. Coming out of the fourth ventricle, there is the central canal. Neural pathways: the organisation of neurons.
