PSYC 101 Lecture Notes - Lecture 9: Autonomic Nervous System, Sympathetic Nervous System, Vagus Nerve

• School: UBC
• Department: Psychology
• Course: PSYC 101
• Professor: Luke Clark

Document Summary

The nervous system is made up of 2 parts: central nervous system: brain spinal cord, peripheral. Automatic - involuntary and automatic commands that control internal organs and glands. Somatic - conveys information into and out of the central nervous system; controls voluntary movements of skeletal muscles. Voluntary control of bodily movements via skeletal muscles. Comprises: sensory neurons (inputs) pressure, temperature, pain, proprioception (understanding where we are in space), interoception motor neurons (outputs) to skeletal muscles. Ach) - makes you ood all your acetylcholine, can"t create it rapidly enough > paralysis the pain withdrawal re ex does not go via brain: ach interneurons in spinal cord they are all working on a single neurotransmitter (acetylcholine) Paraplegia (loss of leg movement) and quadriplegia (lose upper limb and lower limb damage higher up in the spinal chord) If you have a lesion lower down: you lose access to anything below it.