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Divisions of the Nervous System Section 35-3. 1. Using Playdough at your table, sculpt a model of the brain. 2. Be sure to include the following parts:

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Presentation on theme: "Divisions of the Nervous System Section 35-3. 1. Using Playdough at your table, sculpt a model of the brain. 2. Be sure to include the following parts:"— Presentation transcript:

1 Divisions of the Nervous System Section 35-3

2 1. Using Playdough at your table, sculpt a model of the brain. 2. Be sure to include the following parts: - Frontal lobe -Parietal Lobe -Occipital Lobe - Temporal Lobe -Cerebellum -Medulla Oblongata 3. Draw lines in your model to represent folds in your brain. 4. Label each part of your brain using paper and toothpicks.

3 Medulla oblongata Frontal lobe Occipital lobe Temporal lobe Cerebellum Parietal lobe

4 Reflexes ► Reflex- a quick, automatic response to a stimulus  Processed in the spinal cord  Ex. Blinking, sneezing Animals use reflexes to avoid danger

5 Reflex Arc ► Sensory receptor  sensory neuron  motor neuron  effector ► Example: Stepping on a tack  Receptor- toe feeling the tack, causing pain, ctivating receptor  Sensory neuron- “pain” signal transmitted from receptor to motor neuron  Motor neuron- signals leg to pull away from the tack  Effector- leg muscles contract, foot is pulled away from the tack

6 Somatic vs. Autonomic ► Somatic nervous system- conscious control  Example: Moving your fingers, toes, mouth, etc ► Autonomic nervous system- unconscious control  Increasing heart rate and blood flow during exercise

7 Homework ► S.A  p. 905 #1-6


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