PSYC 3333 Lecture Notes - Lecture 10: Tegmentum, Neocortex, Cerebrum
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Pysc 3333 Physiological
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Created ByJenny C erna
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Lo o ki ng at the ner v o us system we have the central nerv o us system
Two structures
Brain
Spinal co rd
Peripheral is every thing else
Somatic- Voluntary behavio r
Tech. so matic but tak en on by auto nomi c b ehavio r (walk i ng)
Auto nomic- A uto mati c behavio r (respiration, hear t rate, di gestion)
Can chang e breathing patt ern and hear t rate but no t always thi nki ng
abo ut
Parasympatheti c- Rest and dig est
Sympathetic- E nergy exp endi ture Fi g ht or f l i g ht)
Sep 2 4, 2019 801 A M
Oct 01, 2019 1024 PM
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Cerebro spi nal fl uid
CSF 12 5 mL
Help with mo v ement
pro duce by chor o id pl exus which make about 5 00mL
Whi c h means its constantly drai ning o ut
Ventr i c l es- o p en spaces i n brain
There are 4
1 & 2 lateral ventri cl es
Drain sy stem
1&2 drain into 3 thro ugh the Fo rami n Monro e
Fro m 3 drains i nto the 4th thro ugh C erebral A q ued uct
4 drains into the spi nal cord through SC central canal
Once its done passes thro ugh the st o mac h and ends up as waist
CSF can test fo r drugs
The Brain
Spinal C o rd
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Grey Vs. White
Whi te matter- myel i nated ax o ns
Grey matt er- cell bodi es, somas of cel l s
Do rsal H o rn
Afferent senso r y ax o ns enter thro ugh the dorsal po r t (fro nt)
Do rsal Root Gangl i on
Ventr al Ho rn
Efferent mo to r neurons- mo to r comm ands go o ut the ventral par t of the
sp ine
Divisions of the brai n