Nervous System provies the biological basis of psychological experience
Split into two subsystems - PERIPHERAL and CENTRAL
Peripheral Nervous System - sends info to and receives info from CNS. Made up of SOMATIC and AUTONOMIC nervous systems.
Somatic - info to and from sense and CNS.
Autonomic - info to and from internal organs to sustain life processes. Made up of SYMPATHETIC and PARASYMPATHETIC systems.
Sympathetic - increases bodily activity.
Parasympathetic - maintains/decreases bodly activity.
Central Nervous System - made up of spinal cord and brain.
Spinal cord receives and transmits info to and from brain
Brain - maintains life, involved in higher functions and psych. processes.
The brain is made up of three parts:
CEREBELLUM regulates movement and sense of balance, coordinates muscles
CEREBRAL HEMISPHERES perform higher functions, concerned with hearing, vision, and memory
BRAIN STEM controls functions such as sleeping, waking, breathing, heart rate
SYMPATHETIC NERVOUS SYSTEM
Inhibits saliva production
Increases rate of breathing
Relaxes bladder (increases urination)
Increases heart rate
Stimulates *********** (males) or ****** (females)
Increases actions of adrenal glands
Generally prepares body to expend energy for fight or flight
PARASYMPATHETIC NERVOUS SYSTEM
Stimulates saliva production
Decreases rate of breathing
Contracts bladder (decreases urination)
Decreases heart rate
Stimulates sexual arousal
Decreases actions of adrenal glands
Generally maintains and conserves body energy and functions