Biological Level

of AnalysisDay 1…

HO

W

DO

ES

O

UR

B

IOL

OG

Y

AF

FE

CT

O

UR

B

EH

AV

IOR

?

Learning Intention: Explain the effects of neurotransmission on human behaviour

Success Criteria: Students will be able to successfully label all parts of the nervous system

Th

e n

ervo

us

system

is divid

ed

in

to th

e•p

erip

hera

l n

ervo

us syste

m

(PN

S) a

nd

the

•cen

tral n

ervo

us

system

(CN

S)

THE NERVOUS SYSTEM

Th

e P

NS

con

sists of

•se

nso

ry neu

ron

s run

nin

g

from

stimu

lus re

cep

tors

that in

form

the C

NS

of th

e

stimu

li•m

oto

r neu

ron

s run

nin

g

from

the C

NS

to th

e

mu

scle

s an

d g

lan

ds -

calle

d e

ffecto

rs - that

take a

ction

.

Th

e C

NS

con

sists of th

e•sp

inal c

ord

•b

rain

Central Nervous System (CNS): Spinal Cord & Brain

CN

S: co

ntro

ls b

eh

avio

r &

coord

inate

s m

ove

men

t b

etw

een

/am

on

g a

ll d

iffere

nt p

arts o

f the

bod

y

Bra

in p

rote

cted

by

the sk

ull, sp

inal co

rd

pro

tecte

d b

y ve

rteb

rae/ sp

inal

colu

mn

bu

t this

does N

OT

mean

they

are

safe

from

in

jurie

s

W

hat is a

refl

ex?

it ca

n o

ccur w

ithou

t g

oin

g th

rou

gh

the

bra

in to

pro

cess.

Is fi

gh

t or fl

igh

t re

spon

se a

refl

ex?

Ye

s: acco

rdin

g to

wh

o?

N

o: a

ccord

ing

to w

ho?

THE BRAIN: most important part of life…

Our brain has 4 lobes

Fro

nta

l Lob

e-

re

aso

nin

g, p

lan

nin

g,

parts o

f speech

, m

ove

men

t, em

otio

ns,

an

d p

rob

lem

solvin

gP

arie

tal L

ob

e-

m

ove

men

t, orie

nta

tion

, re

cog

nitio

n, p

erce

ptio

n

of stim

uli

O

ccip

ital L

ob

e-

visu

al p

roce

ssing

Tem

pora

l Lob

e-

p

erce

ptio

n a

nd

re

cog

nitio

n o

f au

dito

ry stim

uli, m

em

ory, a

nd

sp

eech

4 Lobes

HEMISPHERES

Our brain has 2 hemispheres: a LEFT and a RIGHT. Our LEFT controls the RIGHT side of our body, and vice-versa. http://youtu.be/2MKNsI5CWoU

Our Brain’s Main Structures

2 h

em

isph

ere

s, 4 lo

bes…

C

ere

bellu

m

"little b

rain

", is simila

r to th

e

cere

bru

m in

that it h

as tw

o

hem

isph

ere

s an

d h

as a

hig

hly

fold

ed

surfa

ce o

r corte

x.

Th

is structu

re is a

ssocia

ted

w

ith re

gu

latio

n a

nd

co

ord

inatio

n o

f move

men

t, p

ostu

re, a

nd

bala

nce

.

Lim

bic

Syste

m

refe

rred

to a

s the "e

motio

nal

bra

in", is fo

un

d b

urie

d w

ithin

the

cere

bru

m. L

ike th

e ce

reb

ellu

m,

evo

lutio

narily th

e stru

cture

is ra

ther o

ld

Bra

inste

m

vital life

fun

ction

s such

as

bre

ath

ing

, heartb

eat, a

nd

b

lood

pre

ssure

M

ed

ulla

, pon

s, mid

bra

in

{

ALL OF THIS DEPENDS ON…

NEURONS

A specialized cell transmitting nerve impulses; a nerve cell

“Damn, Skinner Ate Mice? Not Very Smart!”

Dendrites Soma Axon Myelin sheath Nucleus Synaptic vessels Synapse

NEURON

DRAW THE STRUCTURE BELOW IN YOUR NOTES. TRACE THE PATHWAYUSING ARROWS WITH A DIFFERENT COLOR PEN

http://www.youtube.com/watch?v=FR4S1BqdFG4&feature=related

http://www.youtube.com/watch?v=ifD1YG07fB8&feature=related until :20 

http://www.youtube.com/watch?v=GIGqp6_PG6k

How do neurons work?