1. PERIPHERAL NERVE SYSTEM
1. Spinal ganglia
2. Peripheral nerve
3. Nerve endings
4. Spinal cord
5. Meninges

2. NERVE ENDINGS NERVE ENDINGS SENSORY (receptors)
A. Disposition: 1. Interoceptors
2. Proprioceptors
3. Exteroceptors
B. Feelings: 1. Pain
2. Pressure
3. Temperature…
C. Structure: 1. Simple (free)
2. Compound (nonfree): encapsulated, noncapsulated
SYNAPSES (chemical and electric)
Structure
Functions: excitatory, inhibiting
Mediator: acetylcholine, adrenalin, bombesin …
III. EFFECTORY (effectors)
Motor
Secretory

3. Peripheral nerve

4. Nerve

5. Spinal ganglion

6. NERVE ENDINGS SENSORY (receptors) A. Disposition: 1. Interoceptors
2. Proprioceptors
3. Exteroceptors
B. Feelings: 1. Pain
2. Pressure
3. Temperature…
C. Structure: 1. Simple (free)
2. Compound (nonfree): encapsulated, noncapsulated
SYNAPSES (chemical and electric)
Structure
Functions: excitatory, inhibiting
Mediator: acetylcholine, adrenalin, bombesin …
EFFECTORY (effectors)
Motor
Secretory

7. Paccinian body

8. Synapses

10. Spinal cord

11. SPINAL CORD
Gray matter: H-like inside, nerve cells aggregations (nuclei)
White matter: outside, columns of nerve fibers
Types of nerve cells
Radicular – axons form the anterior root
Funicular– axons form the white matter funiculi
Inner – axons lie in gray matter
Ventral horn of gray matter:
5 nuclei – multipolar motor radicular neurons
Lateral horn:
Nucleus intremediolateralis – multipolar associative radicular neurons
Nucleus intremediomedialis – multipolar associative funicular neurons
Dorsal horn :
Nucleus proprius – multipolar associative funicular neurons
Nucleus thoracicus– multipolar associative funicular neurons

12. MENINGES 3 protective coats of CNS: dura, arachnoid and pia Skull bone
Periosteum of skull
epidural space
DURA MATER – dense connective tissue
epithelium
subdural space
ARACHNOID – flat epithelium
fibrocollagenous tissue
web-like strands
subarachnoid space
PIA MATER – squamous epithelium
– loose connective tissue with blood vessels and nerve fibers
Basement membrane
Glia limitans (astrocytes)
Nerve tissue