Transcript Human Brain ppt85a1x

The Human Brain
The human brain is the most
complex organ in the body. It is
made up almost entirely of nerve
cells.
At any given moment there are
millions of electrical impulses
running through the brain. The
brain is constantly receiving and
responding to hundreds of
messages from the environment
and the internal organs of our
body.
http://www.youtube.com/watch?v=UabDiuTtU0M
1.Name the hemispheres of the brain?
2.What is the Corpus Callosum?
3.What happens during a seizure?
4.Describe the “plus sign” demo.
5. What do neurons do?
6.What is a synapse?
Functions of the Nervous System
1.
Receive Information
Your nervous system checks inside your body and outside in your
environment. Your nervous system takes in messages and information.
2.
Respond to Information
Your nervous system changes inside and outside make your body react.
Stimuli vs. Response
3.
Maintain Homeostasis
Your nervous system helps notice if you are hungry, hot, cold, in need of
drinks. Your nervous system tells your body to react and keep your body
stable.
Question… What is the difference between neurons and nerve impulses?
Question… What are the 3 types of neurons?
What is the job of the Spinal Cord?
What is the job of the Spinal Cord?
The brain and spinal cord are
your body’s central nervous
system.
• The brain is the command
center for your body, and the
spinal cord is the pathway for
messages sent by the brain to
the body and from the body to
the brain.
Cerebellum
The cerebellum is responsible for coordination, and maintaining of posture,
muscle tone, and balance.
Cerebrum
The largest structure of the brain is the
cerebrum and contains lobes including
frontal, parietal, occipital, and temporal
lobes. It is the centre of intellect,
memory, language and consciousness,
receiving and interpreting sensory
information and controlling movement
Cerebral lobes:
Frontal lobe (pink)
Parietal lobe (green)
Occipital lobe (blue)
This nervous system is composed of billions of cells, the most essential being the
nerve cells or neurons.
There are estimated to be as many as 100 billion neurons in our nervous system!
1. State a function of each part in the diagram
2. Complete WB page 207 to top page 212