SENSATION
General
1. Sensation
2. Perception
Sensory modalities
1. Sensory modality
2. General senses
-a. Somatic senses
-b. Visceral senses
3. Special senses
Process of Sensation
1. Receptor stimulation
2. Signal transduction
-a. Generator potential
-b. Receptor potential
3. Impulse generation
-a. Action potential
-b. First order neuron
4. Sensory input integration
Sensory receptors
1. Location
-a. Exteroceptors
-b. Interoceptors
-c. Proprioceptors
2. Stimulus detected
-a. Mechanoreceptors
-b. Thermoreceptors
-c. Photoreceptors
-d. Chemoreceptors
-e. Nociceptors
3. Structural complexity
-a. Separate cells
-b. Free nerve endings
-c. Encapsulated nerve endings
Free nerve endings
1. Free dendritic endings
2. Merkel cells
3. Root hair plexus
Encapsulated receptors
1. Meissners corpuscles
-a. Description
-b. Location
-c. Function
2. Krauses end bulbs
-a. Location
-b. Function
3. Pacinian corpuscles
-a. Location
-b. Function
4. Ruffinis corpuscles
-a. Location
-b. Function
5. Muscle spindles
-a. Function
6. Tendon organ
-a. Function
7. Joint kinesthetic receptor
-a. Description
Adaptation
1. Adaptation
2. Rapid adapting receptors
3. Slowly adapting receptors
Pain
1. Fast pain
-a. Superficial somatic pain
2. Slow pain
-b. Deep somatic pain
3. Visceral pain
-a. Referred pain
CEREBRAL CORTEX
General
1. Primary soatosensory area
2. Primary motor area
SOMATIC SENSORY PATHWAYS
General
1. First order neuron
2. Second order neuron
3. Third order neuron
Posterior column medial lemniscus
pathway
1. Posterior (dorsal) column
2. Medullary nuclei
-a. Gracile nucleus
-b. Cuneate nucleus
3. Medial lemiscus
4. Thalamus
5. Sensations
-a. Fine touch
-b. Stereognosis
-c. Propriocepion
-d. Vibration
Anteriolateral (spinothalmic) pathway
1. First order neuron
2. Second order neuron
3. Third order neurons
4. Sensations
Spinocerebellar pathways
1. First order sensory
2. Second order sensory
3. Cerebellum
SOMATIC MOTOR PATHWAYS
General
1. Lower motor neurons
2. Somatic motor pathways
-a. Local circuit neurons
-b. Upper motor neurons
-c. Basal ganglia neurons
-d. Cerebellar neurons
Direct motor pathways
1. Voluntary movement
2. Pyrimadal pathway
3. Upper motor neurons
4. Tracts
-a. Lateral coricospinal tracts
-b. Anterior corticospinal tracts
-c. Corticobulbar tract
Indirect motor pathways
1. Extrapyramidal pathways
2. Complexity
Basal ganglia
1. Feedback circuit
2. Movement
3. Unwanted movements
4. Other functions
5. Parkinson disease
6.
Cerebellum
1. Skilled movements
2. Posture
3. Equilibrium
4. Ataxia
5. Intention tremor
INTEGRATIVE FUNCTION OF THE CEREBRUM
Sleep: patterns
1. Circadian rhythm
2. Hypothalamus
3. Reticular activating system
-a. Sleep
-b. REM
-c. Arousal
Sleep: stages
1. Sleep
2. NREM Stages
-a. Stage 1
-b. Stage 2
-c. Stage 3
-d. Stage 4
3. REM
Sleep: patterns
1. Sleep pattern
-a. NREM
-b. REM
2. Importance
-a. Slow wave sleep
-b. REM sleep
Learning and Memory
1. Learning
2. Memory
3. Immediate memory
4. Short term memory
5. Long term memory
6. Memory consolidation
5. Mechanisms
-a. Long-term potentiation
-b. NMDA receptors