1. The nervous and endocrine
systems

2. Nervous system
• Receives information
• Processes, coordinates the information
• Elaborates responses

3. Main elements
• Stimuli
• Receptors: sensory organs
• CNS
• Effectors:
– Muscles
– Glands
• Neurons (nerves)

4. Neuron

6. Synapse: connection between neurons
• Animación
• Page 80 book

9. What are stimuli?
• Think examples.
• Street lights:
– If red….we stop
– If green….we cross
• Runners. Exit signal…they startt running

10. What happens between we detect a
stimulus until we elaborate a response?
Detection of the stimuli by receptors
Receptors turn the stimuli into electrical
impulses
Information sent to the CNS (through the
nerves)
CNS receives the info, coordinates it and
elaborates a response
Neurons transmit the info to the effectors:
muscles or glands

11. • Video sencillo partes sistema nervioso
• http://educacion.practicopedia.lainformacion.com

14. Differences between nervous system
and endocrine system
NERVOUS SYSTEM ENDOCRINE SYSTEM
Messengers ELECTRICAL IMPULSES HORMONES
Way of travelling NEURONS BLOOD
Speed VERY FAST SLOW
Duration SHORT EFFECT LONG/LASTING EFFECTS

17. • Video about CNS and PNS
• http://www.youtube.com/watch?v=ErRdp9iJa-4
• Small test about the video
• http://studyjams.scholastic.com/studyjams/jams/science/h
• Video poner al final tema como repaso
• http://studyjams.scholastic.com/studyjams/jams/science/h

19. Spinal cord meninges

20. The brain
• 3 parts:
• CEREBRUM
• CEREBELLUM
• BRAIN STEM

22. The meninges

25. Cerebrum

26. Two hemispheres: right and left

28. Cranial nerves

29. PNS

31. • Video about peripheral nervous system
• http://www.youtube.com/watch?v=gFPMGdYtcPU

32. Reflexes
• http://www.bbc.co.uk/schools/gcsebitesize/scienc

33. Knee-jerk reflex
• http://www.edoctoronline.com/media/19/photos
• Video reflex arc
• http://www.youtube.com/watch?v=Y5nj3ZfeYDQ
• http://www.youtube.com/watch?v=wLrhYzdbbpE

35. • Quiz about the nervous system
• http://www.vtaide.com/png/nervous-
mcq.htm
• Another test
• http://www.lrn.org/Content/Quizzes/Qnervou
s.html

36. • Video endocrine system from 00:20”
• http://www.youtube.com/watch?
v=lBWIkKfbW8U
• Flash animation hypothalamus-pituitary gland
• http://bcs.whfreeman.com/thelifewire/conte
nt/chp42/4202s.swf

37. • More links
• Animation endocrine system-sugar levels
• http://www.wiley.com/college/grosvenor/047
0197587/animations/endo3a/
• Blood sugar levels
• http://bcs.whfreeman.com/thelifewire/conte
nt/chp50/5002s.swf

38. Web pages
• http://www.watchknowlearn.org/Category.as
px?CategoryID=806
• http://www.watchknowlearn.org/Category.as
px?CategoryID=1841