PSYC 1100 Lecture Notes - Lecture 6: Peripheral Nervous System, Central Nervous System, Autonomic Nervous System

• School: UConn
• Department: Psychological Sciences
• Course: PSYC 1100
• Professor: Harvey Swadlow

Document Summary

Controls smooth muscles in organs and vessels, glands, cardiac muscle. Two branches worked in an antagonistic manner. Central nervous system: brain and spinal cord. Medial vs lateral: close to middle vs farther away. Ipsilateral vs contralateral: same side vs opposite side. Tracts for voluntary actions (in central nervous system) When organized in a clump, can be a nuclei if in cns. Cortex (covering some inner core, layered structure) Spinal cord (in cns): tracts cannot regenerate. Controls all skeletal muscles below the neck and body senses. Organized in segmental manner (30-32 segments, one pair of spinal nerves or each segment) Each spinal segment controls a single dermatome: Carry sensory info to the brain via axonal tracts. Carry motor info from the brain via axonal tracts. Integrate sensory and motor info (synapses) and generates reflexes. Gray matter is in the inner core. Reflexes organized within gray matter (like the knee reflex) Arachnoid: in the middle, like a spider web.