PSY290H1 Chapter Notes - Chapter 3: Superior Temporal Gyrus, Limbic System, Golgi'S Method
Document Summary
Central nervous system: division of the nervous system that is located within the skull and spine. Peripheral nervous system: division that is located outside the skull and spine. Central nervous system is divided into two divisions: brain (located in the skull) and spinal cord (located in the spine) Peripheral nervous system is divided into two divisions: the somatic nervous system (sns) and the autonomic nervous system (ans) Somatic nervous system is the part of the pns that interacts with the external environment. Sns is composed of afferent nerves (which carry sensory signals) and efferent nerves (which carry motor signals from the central nervous system to the skeletal muscles) Autonomic nervous system: the part of the peripheral nervous system that regulates the body"s internal environment. Ans is also composed of afferent nerves and efferent nerves. There are 2 kinds of efferent nerves: sympathetic nerves and parasympathetic nerves. Sympathetic nerves: the autonomic motor nerves that project from the.
