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2.2 Nervous and Endocrine Systems (ENDOCRINE (w nervous (Stress, Eating,…
2.2 Nervous and Endocrine Systems
NERVOUS
Central
Brain
Spinal cord
Conducts sensory data
Outgoing movement commands
Spinal reflexes
Peripheral
Autonomic nervous system
emotional experineces
Internal environment regulation
Involuntary
Sympathetic
- arousal - expends energy
Parasympathetic
- normal resting state - conserves energy
Emotion
Physiological arousal
Autonomous nervous system
Cognitive appraisal
Behavior
Somatic nervous system
James-Lange
Phys-> Behav-> Emo
Cannon-Bard
Phys+Behav = Emo
Schachter-Singer
Physiological arousal -> Cognitive appraisal
LeDoux: different brain systems for different behav.
Somatic nervous system
carries sensory input
from CNS to skeletal muscles
Voluntary
3 Types of Neurons
Interneurons
CNS only
Sensory
PNS only
Sensory nerves
Motor
PNS only
ENDOCRINE
w nervous
Stress
Eating
Sex
Metaboism
Growth
Endocrine glands
HORMONE secretion
W-in body to bloodstream
Exocrine glands
Outside body
Controlled by hypothalamus
Pituitary gland