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University Learning in Schools Biology My brain during the day Lesson 2: Senses

University Learning in Schools Biology My brain during the day Lesson 2: Senses. What do these pictures represent?. Senses and our Brain. Learning Outcomes Identify the different senses in our body Link the function of our senses to the effect they have on our behavior and responses

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University Learning in Schools Biology My brain during the day Lesson 2: Senses

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  1. University Learning in Schools Biology My brain during the day Lesson 2: Senses

  2. What do these pictures represent?

  3. Senses and our Brain Learning Outcomes Identify the different senses in our body Link the function of our senses to the effect they have on our behavior and responses Identify the effect of damage in a particular area of the brain on the functionality of our senses

  4. Sensing the World Visit the different stations around the room and fill in your table.

  5. Nervous System Parts of our body that we use to sense things are called SENSE ORGANS – eye, ear, mouth, skin, nose. Our sense organs respond to stimuli in our environment. Each SENSE ORGAN has special cells called RECEPTOR CELLS. Each receptor cell is sensitive to different things.

  6. Senses • Receptors in eye are sensitive to light • Receptors in ear are sensitive to sound • Receptors on tongue are sensitive to chemicals • Receptors in nose are sensitive to chemicals • Receptors in the skin are sensitive to touch, pressure, pain, temperature

  7. Match them up

  8. Choose from the following options SOUND CHEMORECEPTOR sight NOISE RECEPTOR CHEMICALS taste CHEMORECEPTOR PRESSURE touch PHOTORECEPTOR LIGHT hearing CHEMICALS TOUCH RECEPTOR smell

  9. Choose from the following options taste NOISE RECEPTOR SOUND CHEMORECEPTOR sight PHOTORECEPTOR PRESSURE CHEMICALS LIGHT touch hearing TOUCH RECEPTOR CHEMORECEPTOR smell CHEMICALS

  10. Match them up CHEMORECEPTOR CHEMICALS smell TOUCH RECEPTOR PRESSURE touch CHEMICALS CHEMORECEPTOR taste NOISE RECEPTOR hearing SOUND sight LIGHT PHOTORECEPTOR

  11. The main part of our nervous system is called the Central Nervous System (CNS). Spinal cord cross-section

  12. Spinal Cord

  13. Let me introduce you to my friends! Mrs. Sensory nerve Mr. Motor Nerve Members of the nerve cell family are like messengers. They carry electrical impulses to and from the sensory organ (eye) and the spinal cord.

  14. Receptor Sensory neurone Co-ordinator (CNS) Motor neurone Effector Nervous System

  15. 4) The brain decides to move the hand away. Here another sensory neurone carries the signal to the brain. 5) This impulse is sent by MOTOR NEURONES to the hand muscles (the effectors) via the spinal chord… 2) The impulse is carried by SENSORY NEURONES to the spinal chord. 1) Receptors in your skin detect a stimulus. 6) …which then moves the hand away. Stimulus Receptor Sensory Neurone Coordinator Motor Neurone Effector Response Conscious actions

  16. Sensory neurone Motor neurone Pain receptors in finger Motor neurone Sensory neurone Motor neurone Iris muscles Sensory neurone Touch receptors on baby’s hand Sensory neurone Motor neurone

  17. Case study • How does brain trauma affect some of our senses? You will receive an extract from an article talking about a problem with the senses. • You will have to read the extract and identify what area of the brain is linked to the problem. • You will then pair up with someone else in the class who has read the other article and teach each other what you have learnt. Use the ‘speaking frame’ to identify what points to extract and what to teach the other person.

  18. Speaking frame • The medical issue is called… • This means the following… • …can be caused by… • The brain area involved is… • A solution to this issue is…

  19. Plenary • Complete the exam question.

  20. Question check (a)     a stimulus 1 (b)     (i)      A1 (ii)     C either order1 D1 (iii)    E1 (c) the brain

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