Nerve tissue
Nerve tissue
Neurons Glial cells
Classification by:
• size
• number of processes
• axon length
• mediators
• position in neuronal network
• function
Central (CNS)
• oligodendrocytes
• astrocytes
• ependymal cells
• microglia
Peripheral (PNS)
• satellite cells
• Schwann cells
Neuron
Cortex cerebri – overview
Cortex cerebri – Pyramidal cells – multipolar neurons
Cortex cerebri – Pyramidal cells – multipolar neurons
Cerebellum – overview
Cerebellum – Purkinje cell
Cerebellum – Nissl substance
Medulla spinalis
Somatomotoric
multipolar neurons
Medulla spinalis - somatomotoric multipolar neuron
Medulla spinalis
Somatomotoric
multipolar neurons
Myelinated axons
Medulla spinalis
Ependymal cells of
canalis centralis
Pseudounipolar neurons
Satellite cells
Ganglion spinale
Vegetative ganglion – ganglionic cells (multipolar
neurons), satellite cells
Vegetative ganglion – ganglionic cells (multipolar
neurons), satellite cells
Ganglionic cells
with lipofuscin
Peripheral nerve
Cross section
Longitudinal
sections
Peripheral nerve - connective tissue
Endoneurium
Perineurium
Epineurium
Peripheral nerve - node of Ranvier
Node of Ranvier
Peripheral nerve
Myelin sheath with nodes of Ranvier (OsO4)
Motor end plates in motor unit
telodendria
Motor end
plate
Skeletal
muscle fibers
Motor end plates in motor unit (detection of
acetylcholinesterase)
Axons with Schwann sheath
Nucleus of Schwann cell
Myelin sheath
Myelin and Schwann sheath
Presynaptic ending
Synapsis
Synapsis
1. presynatic ending
2. synaptic cleft
3. postsynaptic membrane
4. perikaryon
5. synaptic vesicles
6. mitochondria
7. microtubules
Neurotransmitters
1. adrenaline
2. noradrenaline
3. dopamine
4. serotonin
5. GABA
6. acetylcholine
7. glutamate
8. endorphins
Hematoencephalic (bloood-brain) barrier
1. endothelial cell
2. pericyte
3. lamina basalis
4. perivascular feet of the
astrocyte
5. erythrocyte
6. microglia
7. phagosomes in microglia
Nerve tissue
Slides:
Pyramidal cell (75, 76. Cortex cerebri)
Purkinje cell (77. Cerebellum)
Nissl substance (78. Cerebellum)
Somatomotoric multipolar neuron (79. Medulla spinalis)
Pseudounipolar neuron (81. Ganglion spinale)
Myelin sheath (87. Peripheral nerve)
Motor-end plate (Acetylcholinesterase)
Electronograms:
Atlas of Cytology and Embryology
https://www2.med.muni.cz/histology/multimedia-and-textbooks/
Numbers by the slides indicate their positions in sets in Microscopic Hall, not in online
atlases. These numbers allow you to find the slides easily and study them using a
microscope when the normal classes are opened.