PSYC 1100 Lecture 7: Psych 2_12_19

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

Document Summary

Central nervous system: bilateral symmetry so there are relational terms. Carries sensory information to brain through axonal tracts. If spinal cord is cut, can"t regenerate. Carries motor information (movement) from brain through axonal tracts. Integrates sensory and motor information (synapses) and generates reflexes. There are locomotion generators within the spinal cord- somewhat based on reflexes. Controls all skeletal muscles below neck and body senses. Organized into segmental manner (about 30-32 segments, one pair of spinal nerves and one dermatome for each segment) Coccygeal (0-2 pairs, not all people have this) Gray matter on the inner core of spinal segment. White matter on the outside of spinal segment. Skeletal muscles controlled by synapses from an axon that has a cell body in the spinal cord. Reflexes are organized within the gray matter. Meninges (in spinal cord and brain; function is to protect- shock. Innermost layer that follows convolutions absorbers/ buffer) Thick sack filled with cerebrospinal fluid that covers brain.