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Bio 216: Nervous System, Neuron,
Sensory Systems
- Nervous System
- CNS
- composed of
- brain
- development
- at 4 weeks
- forebrain
- at 5 weeks
- telencephalon
- adult
- cerebrum
- cerebrum
- adult
- diencephalon
- adult
- thalamus
- hypothalamus
- thalamus
- adult
- telencephalon
- at 5 weeks
- midbrain
- 5 weeks
- mesencephalon
- adult
- midbrain
- midbrain
- adult
- mesencephalon
- 5 weeks
- hindbrain
- at 5 weeks
- metencephalon
- adult
- cerebellum
- pons
- cerebellum
- adult
- myelancephalon
- adult
- medulla oblongata
- medulla oblongata
- adult
- metencephalon
- at 5 weeks
- forebrain
- at 4 weeks
- lobes
- frontal
- functions
- thinking
- organizing
- planning
- problem solving
- memory
- attention
- movement
- thinking
- functions
- parietal
- function
- perception
- integration of senses
- perception
- function
- occipital
- vision
- vision
- temporal
- function
- smell
- taste
- sound
- formation
and storage of
memories
- smell
- function
- frontal
- development
- spinal cord
- brain
- composed of
- PNS
- divided into
- afferent system
- receptors to CNS
- receptors to CNS
- efferent system
- CNS to effectors
- divided into
- somatic
- mostly voluntary
- mostly voluntary
- autonomic
- involuntary
- divided into
- sympathetic
- involves
- fight or flight
- fight or flight
- involves
- parasympathetic
- involves
- "rest or digest"
- "rest or digest"
- involves
- sympathetic
- involuntary
- somatic
- CNS to effectors
- afferent system
- divided into
- CNS
- Neuron
- structure
- in order of signal propogation
- dendrites
- cell body
- nucleus
- axon hillock
- axon
- signal velocity increased by
- myelin sheath
- saltatory conduction
- along
- nodes of Ranvier
- nodes of Ranvier
- along
- myelin sheath
- axon terminal
- signal velocity increased by
- axon
- axon hillock
- nucleus
- cell body
- dendrites
- in order of signal propogation
- signal conduction
- resting potential
- -70mV
- established by
- sodium
- potassium
- sodium
- -70mV
- acetycholine
- stimulates
- opening of Na+ voltage-gated channels
- causing
- membrane potential to depolarize
- threshold reached
- rapid influx of + charges
- after peak of AP
- repolarization
- hyperpolarization
- refractory period
- return to
- resting potential
- resting potential
- refractory period
- both
- hyperpolarization
- repolarization
- after peak of AP
- -50mV
- rapid influx of + charges
- threshold reached
- membrane potential to depolarize
- causing
- opening of Na+ voltage-gated channels
- stimulates
- resting potential
- membrane potential established by
- difference in
electrical charge
on 2 sides of the
membrane
- difference in
electrical charge
on 2 sides of the
membrane
- structure
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