BIOL 212 Study Guide - Comprehensive Final Guide: Inhibitory Postsynaptic Potential, Myosin Head, B-Cell Receptor

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29 Nov 2016
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BIOL 212
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Nervous System
Nervous system functions
Sensory inputs (light, smell, touch, etc.)
Motor responses (reflexive, voluntary)
Autonomic functions (heartbeat, digestion, blood pressure, etc)
oImportant for homeostasis
Learning & cognition
Central nervous system:
-brain and nerve cord (spinal cord in vertebrates)
Peripheral Nervous System:
-all neurons and their projections that are outside the CNS
All chordates have CNS and PNS
Nervous system- information collection, processing and responses
Sensory inputs from PNS and CNS (sight, odor and taste)
Information processing by CNS (thinking of yummy food)
Commands from CNS and PNS control body activities (salvation)
Central Nervous System (Information Processing)
Afferent division- transmits sensory info (sensory neurons) To central nervous
Efferent division- transmits motor information (motor neurons) Away from CNS
-Somatic nervous system (voluntary response)
-Autonomic nervous system (involuntary response; controlling blood
pressure, etc.)
oParasympathetic division (don’t worry about)
oSympathetic division(don’t worry about)
Efferent (Motor) Systems
1. Somatic nervous system
a. Voluntary responses
a.i. Sensory neurons receive external stimuli
a.i.1. Heat, vision, smell, taste, hearing touch
a.ii. Motor neurons control skeletal muscles
2. Autonomic nervous system
a. Involuntary- usually cannot be consciously controlled
b. Regulates homeostasis
b.i. Sensory neurons detect internal body conditions
b.ii. Motor neurons control organ functions
Cerebrum- conscious thought; memory
Cerebellum- coordination of complex motor patterns
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