This document provides an overview of the interaction function in living things. It discusses the three main systems that allow for interaction: the nervous system, the five senses, and the locomotory system. The nervous system is described in more detail, including its main components of the brain, spinal cord, and nerves. The brain's major parts - cerebrum, cerebellum, and brainstem - are defined along with their functions. The spinal cord connects the brain to the rest of the body via nerves. Neurons and synapses are also explained at a high level.

1. Unit 1.
Interaction
6th Grade Natural Sciences

2. Review
3 Vital Functions
Interaction
Exchange
information with
the environment
Nutrition
Obtain nutrients
(food, oxygen,
water) and
eliminate waste
Reproduction
Create new living
things

3. Interaction Function
! To carry out the interaction function
we need
! The nervous system
! The 5 senses
! The locomotory system

4. Nervous system
! It is made up of:
! The brain
! The spinal cord
! The nerves

5. THE BRAIN; coordinating
centre
! Cerebrum: Biggest part.
Intelligence, memory,
personality, emotions, speech,
feel and move (voluntary)
! Cerebellum: Balance,
movement (automatic)
coordination.
! Brainstem: Connects to spinal
cord. Involuntary
actions(breathing, heartbeating)
Brainstem

6. THE SPINAL CORD: connects
the brain to the rest of the
body
! It is made up of nerves.
! A nerve is made up of
many axons of
neurons.
! Injuries in the spinal
cord can lead into
serious problems such
as lack of mobility in
the limbs.

7. Nerves: they
transmit
information.
! Sensory nerves:
! From the 5 senses to the brain
! Motor nerves:
! From the brain to the muscles or glands

8. Neuron
Cell body
Dendrites
of the axon
dendrites
nucleus
axon

9. Synapse: space between
neurons. Chemicals transmit.
Axon
Dendrite

10. Our net of neurons

11. Santiago Ramón y Cajal
Voluntary work:
Find out information about this great
Spanish Scientitst, including:
! His biography (include a photo)
! His discoveries (include photos)
! Awards
(you can do it on a poster or on a
presentation)

12. More information
! How the nervous system works and
curiosities
! https://www.youtube.com/watch?
v=dah-4mtAnsQ&feature=youtu.be
! Neuroscience for kids
! http://faculty.washington.edu/chudler/
introb.html