welcome to
Download
Skip this Video
Download Presentation
Welcome to…

Loading in 2 Seconds...

play fullscreen
1 / 24

Welcome to… - PowerPoint PPT Presentation


  • 81 Views
  • Uploaded on

The Nervous System. Welcome to…. Text, p.241. Nervous System. Central Nervous System. Peripheral Nervous System. Somatic Nerves. Autonomic Nerves. Spinal Cord. Brain. Sensory. Motor. Sympathetic. Parasympathetic. Forebrain. Midbrain. Hindbrain. The Four Lobes…. Cerebrum.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Welcome to…' - kasper-chase


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
welcome to

The Nervous System

Welcome to…

slide2

Text, p.241

Nervous System

Central Nervous System

Peripheral Nervous System

Somatic Nerves

Autonomic Nerves

Spinal Cord

Brain

Sensory

Motor

Sympathetic

Parasympathetic

Forebrain

Midbrain

Hindbrain

The Four Lobes…

Cerebrum

Olfactory Lobes

Thalamus

Pons

Medulla Oblongata

Corpus Callosum

Cerebellum

Hypothalamus

cns pns
CNS & PNS
  • CNS – coordinating centre for information coming in and going out (brain and spinal cord)
  • PNS – carries information between organs of the body and the CNS

http://diabetes.niddk.nih.gov/dm/pubs/complications_nerves/index.htm

somatic nerves voluntary
Somatic Nerves voluntary
  • Control muscles that are connected to the skeleton and skin
  • Sensory nerves
    • Relay information about the environment
  • Motor nerves
    • Initiate an appropriate response

Think of a pin pricking your finger…

autonomic nerves involuntary
Autonomic Nerves involuntary
  • Special nerves to control the internal organs of the body
  • Sympathetic
    • “on” switch to prepare for stress
  • Parasympathetic
    • “off” switch to return to normal resting levels

What do lie detector tests and erectile dysfunction have in common??

slide7

Text, p.241

Nervous System

Central Nervous System

Peripheral Nervous System

Somatic Nerves

Autonomic Nerves

Spinal Cord

Brain

Sensory

Motor

Sympathetic

Parasympathetic

spinal cord
Spinal Cord
  • Carries sensory nerve messages from receptors to the brain
  • Relays motor nerve messages from the brain to muscles and glands
  • Like the brain, it is made up of grey and white matter

http://www.accessexcellence.org/RC/AB/IWT/superman/cutawaycord.html

slide10

Text, p.241

Nervous System

Central Nervous System

Peripheral Nervous System

Somatic Nerves

Autonomic Nerves

Spinal Cord

Brain

Sensory

Motor

Sympathetic

Parasympathetic

the brain
THE BRAIN

http://www.simpsonstrivia.com.ar/wallpapers/homer-simpson-wallpaper-brain.htm

oops that s better
Oops! That’s better…

http://www.bbc.co.uk/science/hottopics/intelligence/

the brain1
The Brain
  • Meninges – protective membranes that surround the brain inside the skull
    • dura mater – outer membrane (“tough mother”)
    • arachnoidmater – middle layer (spiderweb-like)
    • pia mater – inner layer (“tender mother”)

p. 257

the brain2
The Brain
  • Major user of glucose (can’t use any other source of energy)

So, how does this make you feel about the “no-carb” craze??

How does glucose enter the body???

regions of the brain
Regions of the brain
  • Forebrain
    • Contains olfactory lobes, cerebrum & corpus callosum
  • Midbrain
    • Less developed; four spheres of grey matter; relay centre for some eye and ear reflexes
  • Hindbrain
    • Behind midbrain, joins the spinal cord
    • Cerebellum, pons, medulla oblongata
slide16

http://web.lemoyne.edu/~hevern/psy340/lectures/psy340.04.2.ns.structure.htmlhttp://web.lemoyne.edu/~hevern/psy340/lectures/psy340.04.2.ns.structure.html

forebrain
Forebrain
  • Olfactory lobes (2) – smell
  • Cerebrum
    • 2 giant hemispheres; major coordination centres of sensory info & motor reaction
    • Speech, reasoning, memory & personality
  • Cerebral cortex
    • The surface of the cerebrum
    • Composed of grey matter with many fissures
forebrain continued
Forebrain continued
  • Corpus callosum
    • A bundle of nerves that connects the 2 hemispheres
  • Hemispheres are divided into lobes
    • Frontal lobe
    • Temporal lobe
    • Parietal lobe
    • Occipital lobe
lobes of the cerebrum
Lobes of the Cerebrum

http://faculty.washington.edu/chudler/lobe.html

Page 260 in your text lists the functions of the lobes

forebrain or midbrain
Forebrain or Midbrain
  • Thalamus
    • Below the cerebrum
    • Coordinates and interprets

sensory info

  • Hypothalamus (below)
    • Connected to pituitary
    • Connects the nervous and

endocrinal systems

http://web.lemoyne.edu/~hevern/psy340/lectures/psy340.04.2.ns.structure.html

slide21

Text, p.241

Nervous System

Central Nervous System

Peripheral Nervous System

Somatic Nerves

Autonomic Nerves

Spinal Cord

Brain

Sensory

Motor

Sympathetic

Parasympathetic

Forebrain

Midbrain

Hindbrain

The Four Lobes…

Cerebrum

Olfactory Lobes

Thalamus

Pons

Medulla Oblongata

Corpus Callosum

Cerebellum

Hypothalamus

hindbrain
Hindbrain
  • Cerebellum
    • Controls limbs, balance,

muscle tone

  • Pons (“bridge”)
    • Relay station between the 2 parts of the cerebellum and between the cerebellum and the medulla
  • Medulla Oblongata
    • Connector between spine and brain; regulates involuntary muscles

http://web.lemoyne.edu/~hevern/psy340/lectures/psy340.04.2.ns.structure.html

page 259 in the text
Page 259 in the text
  • Look at the differences in brains of different organisms
  • Cerebellum – muscle tone, movements
  • Forebrain – reason, intellect, memory, language, personality
  • Medulla oblongata – autonomic nerve control
sheep brain
Sheep Brain…

http://www.gwc.maricopa.edu/class/bio201/brain/brshpx.htm

…see you tomorrow! 

ad