1. Unit 5: Interaction function Page 72
1.- Interaction and coordination
2.- Sensory receptors
3.- The sense organs: sight, touch, smell, taste and hearing
4.- The health of the sense organs
5.- Components of the nervous system
6.- The nervous system
7.- Responses of the somatic nervous system
8.- The health of the nervous system. Healthy habits for the nervous system

2. How do we know? How do we face danger?
Situations that can cause stress: being late for school, taking exams, hearing loud noises, and fighting with your brother or sister.
The best ways of dealing with stress: practice relaxation, talk with someone, get more sleep, get organized

3. How to drink a cup of coffee safely!

6. The nervous pathway, page 72

11. Nervous system
Both
Endocrine system
Information is
transmitted by
electrical impulses.
processed in the CNS.
Consists of glands
that secrete
hormones.
Motor responses are
carried out by
muscles.
Sensory responses
are carried out by
glands.
Responses are
short- lived.
Motor neurons
transmit the response
to the effectors.
Responses are slow,
but long-lasting.

12. Glossary of unit 5, page 216,217
Axon Dendrites Effectors Interaction Nerve Nerve impulse Neuron Neurotransmitter

13. Glossary of unit 5, page 220
Receptor: A specialized cell or group of nerve endings that responds to sensory stimuli and converts the stimulus into an electrical impulse.
Stimulus (plural stimuli) a detectable change in the internal or external environment that causes a response in an organism.
Eye ball.. Globo ocular
Page 88

17. Stimuli, sensitive to…
Type of receptor
Sense organ
Located in…
Headache
Nociceptor
Throughout the body, the skin

18. Stimuli, sensitive to…
Type of receptor
Sense organ
Located in…
Pain (Headache)
Nociceptors
(nociceptores)
Throughout the body, the skin
Chemical substances
Chemoreceptors
(Quimiorreceptores)
Nose and tongue
Touch, pressure,sound waves, gravity
Mechanoreceptors
(Mecanorreceptores)
Skin
Ears
Bright sunshine
Photoreceptors
(Fotorreceptores)
Eyes ( retina)
Temperature change
Thermoreceptors
(Termorreceptores)

19. 3.- The sense organs: sight

23. Accessory structures protect the eyes.

24. How the eyes work?

26. Accommodation: the ability of the eye to adjust its focal length

27. The lens becomes rounder to focus on things that are near and flatter to focus on things that are far

29. Activity Round-up. Page 88.Q. 1
(you have to add chemoreceptor and hot surface from an oven……… in the box)
Voluntary: smell of food > brain > glandular
effector > saliva production > muscle
effector.
Involuntary: thermoreceptor >
spinal cord > remove the hand.
Question 2. In your book

30. Activities about sense organs
.- The________________and the__________________form the eye
.- The innermost layer of the ocular globe is the_________________and it contains 2 types of photoreceptors cells:___________________and____________________
.- In order for sight to be adequate, the _________________regulates the quantity of light that enters the eye and the __________________ focuses images.

31. 4 basic tastes

32. The sense or hearing

33. The sense of hearing, page 77

34. Question 3 from page 77
Pinna: captures sound waves and sends them to the auditory canal.
Auditory canal: sends sounds to the eardrum.
Eardrum: vibrates when it receives sound waves. Chain of bones: amplifies vibrations and sends them to cochlea.
Cochlea: transforms vibrations into nerve impulses. Auditory nerve: carries the impulses to the brain.

36. The sense of Hearing, page 77

37. The anatomy of the ear

38. The anatomy of the ear

42. Components of the nervous system:

43. Types of neurons, page 80