Psychology 2220A/B Chapter Notes - Chapter 3: Dura Mater, Franz Nissl, Cerebrospinal Fluid

• School: Western University
• Department: Psychology
• Course: Psychology 2220A/B
• Professor: Scott Mac Dougall- Shackleton

Document Summary

Anatomy of the nervous system - draw out diagrams. Central nervous system (cns) - division of the nervous system located within the skull and spine. Peripheral nervous system (pns) - division located outside the skull and spine. Somatic nervous system (sns) - part of the pns that interacts with the external environment. Afferent nerves - carry sensory signals from the skin, skeletal muscles, joints, eyes, ears, etc, to the cns. Efferent nerves - carry motor signals from the cns to the skeletal muscles. Autonomic nervous system (ans) - part of the pns that regulates the body"s internal environment. Afferent nerves - carry sensory signals from internal organs to the cns. Efferent nerves - carry motor signals from the cns to internal organs. Sympathetic nerves - those autonomic motor nerves that project from the cns in the lumbar (small of back) and thoracic (chest area) regions of the spinal cord.