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BASIC ANATOMY OF THE NERVOUS SYSTEM.

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Presentation on theme: "BASIC ANATOMY OF THE NERVOUS SYSTEM."— Presentation transcript:

1 BASIC ANATOMY OF THE NERVOUS SYSTEM

2 Recommended textbooks:
Dubový, Petr. Gross Anatomy and Structure of the Human Nervous System - Part I. Surface Anatomy and Structural Arrangement of the Central Nervous System. 3rd ed. Brno : Masarykova univerzita,  s.  ISBN  Drake, Richard L. Gray´s anatomy for students. ISBN  Stingl, Grim, Druga: Regional anatomy. Galén 2012, ISBN Dubový, Petr. Instructions for Anatomical Dissection Course. 1. dotisk 2. vyd. Brno: Masarykova univerzita, s. ISBN  Netter, Frank H. Atlas of Human Anatomy, 3rd. ed ISBN: Atlas of anatomy: Latin nomenclature. Edited by Anne M. Gilroy - Brian R. MacPherson - Lawrence M. Ross - Michael Schu. New York: Thieme Medical, xv, 656 p. ISBN 

3 Basic conception afferent information (nerves, axons, tracts) CNS efferent information (nerves, axons, tracts) ascending information (tracts) descending information (tracts)

4 NERVE CELL = NEURON

5 TYPES OF NEURONS

6 CNS PNS DIVISION OF THE NERVOUS SYSTEM sensors effectors
oligodendrocytes astrocytes Schwann cells and their derivatives sensors stimulus impulse effectors Striated skeletal muscles Non-striated muscles, myocardium, glands

7 DIVISION OF THE PNS Cranial nerves I.- XII. run through the skull base
Spinal nerves – 31 pairs run through foramina intervertebralia

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9 Glial cells of the CNS: astrocytes, oligodendrocytes, microglial, ependymal cells
Glial cells of the PNS: myelinating and non-nemyelinating Schwann cells, satellite glial cells, terminal glial cells

10 unmyelinated axons (< 1m)

11 FUNCTIONAL TYPES OF AXONS IN PNS
somatosensory touch, proprioception, pain Afferent viscerosensory mechanoception, pain sensory relay impulses for taste, hearing and balance somatomotor striated muscles branchiomotor striated muscles Efferent visceromotor non-striated muscles sympathetic myocardium parasympathetic glands

12 DIVISION OF THE CNS Brain (Encephalon) Spinal cord (Medulla spinalis)
Brainstem (Truncus encephali) Medulla oblongata Pons Mesencephalon Cerebellum Diencephalon Telencephalon

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15 Neural crest

16 sulcus limitans

17 Primary subdivisions: prosencephalon, mesencephalon, rhombencephalon
Secondary subdivision: telencephalon, diencephalon, mesencephalon, metencephalon, myelencephalon medulla spinalis myelencephalon metencephalon mesencephalon diencephalon telencephalon

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19 Conus medullaris Filum terminale Cauda equina

20 Spinal segment Fila radicularia

21 Intumescentia cervicalis Intumescentia lumbalis
C3 – T2 Intumescentia lumbalis T9 – T12

22 Segment C5 Segment C1 Segment C5 Segment C8 Segment C8 Segment Th2 Segment Th2 Segment Th10 Segment L4 Segment L1 Segment S4 Segment L4 Segment S4

23 SUBSTANTIA GRISEA – cornu anterius (columna anterior),
cornu posterius (columna posterior), cornu laterale (columna lateralis), substantia intermedia, canalis centralis

24 SUBSTANTIA ALBA – funiculus anterior, lateralis, posterior
fissura mediana ant., sulcus medianus post., septum medianum posterius, sulcus anterolateralis, posterolateralis

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26 FUNCTIONAL ZONES IN THE NEURAL TUBE
SS VS cc VM SM BM

27 Cornu posterius FR Substantia intermedia CC Cornu anterius

28 Radix dorsalis Pseudounipol. neurons of the DRG
Tr. dorsolateralis Lissaueri Ncl. posteromarginalis + Subst. gelatinosa Rolandi Fasc. gracilis Tr. spinobulbaris Fasc. cuneatus Ncl. proprius Ncl. thoracicus (Stilling-Clark.) Tr. spinocerebellaris post. Ncl. intermediomedialis Tr. spinocerebellaris ant. Tr. spino-thalamicus, -reticularis, -tectalis Tr. spino-olivaris Tr. olivo-spinalis

29 Ncl. intermediolateralis
Ncl.motorius

30 Tr. corticospinalis lat.
Tr. rubrospinalis Tr. reticulospinalis Tr. olivospinalis Tr. tectospinalis Tr. corticospinalis ant. Tr. vestibulospinalis

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32 laminae (Rexed 1952) nuclei
ncl. apicalis (ncl. posteromarginalis) II + III substantia gelatinosa Rolandi IV + V ncl. proprius VI ncl. thoracicus (Stilling - Clark) C8-L3 VII group of interneurons in the anterior horn VIII medial group of motoneurons IX lateral group of motoneurons X zona centralis, gray matter around the central canal


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