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4/28 Daily Catalyst Pg. 62 Nervous System 1. Francisco and Stephanie are working on their public health campaign project when suddenly Stephanie is very sick! Francisco, being a good friend, stays by her side. Over the next couple of days, Francisco becomes sick. a. Is this a communicable or non communicable disease? b. Is this disease infectious? c. Is this disease contagious? 2. True or false, Virus reproduce by a host cell and bacteria do not reproduce at all. 3. True or false, A cold is not considered a disease because it only lasts about 1-2 weeks. 4/28 Class Business Pg. 62 Nervous System Public health campaign project due FRIDAY, May 1st Presentation sign up’s Quiz #14 on Friday See me for tutoring Extra credit: gloves, paper towels, hand sanitizer, tissues, band aids, pens, pencils, paper, red pens, tape, glue, and colored paper, markers, and, white board markers Extra credit school play May 1, 2, 9 ½ sheet review STAPLED to your ticket 4/28 Agenda Pg. 62 Nervous System Daily Catalyst Class Business Nervous system notes Work Time Practice time Quiz #13 Homework: nervous system assignment 4/28 Objective Today, we will explore how the body maintains homeostasis with the use of the nervous system. Nervous System Essential Questions How does the body maintain homeostasis? How does the brain send and receive messages? What parts of the brain control body actions? The function of the nervous system Key Point #1: Function of the nervous system The control center of the body There are 2 parts to the nervous system: The central nervous system The peripheral nervous system PART 1: THE CENTRAL NERVOUS SYSTEM (CNS) Key Point #2: The Central Nervous System CNS Brain and spinal cord Control center and makes decisions Anatomy of the brain The brain is the control center of the entire nervous system. Motor area Cerebrum Sensory area Speech area Language area Vision area Taste area General interpretation area Intellect, learning, and personality Balance area Hearing area Brain stem Cerebellum You do not need to know all of these parts!! Just 3… Anatomy of the Brain 1. Cerebrum-controls conscious, voluntary actions Examples: -muscle movements -knowledge -language 2. Cerebellum controls balance, posture & coordination. If you injure your cerebellum, your movements become jerky. Examples-Walking -standing on one foot Anatomy of the Brain Anatomy of the Brain 3. Brain Stem- controls involuntary functions Examples: -breathing -heart rate -body temperature Example: Mrs. Ireland sits down and begins to write down all of the vocabulary from Biology II. What part of the brain is this? She then stands up and stands on one leg for 10 minutes. What part of the brain is this? Cerebrum Knowledge and learning Cerebellum coordination Part II: PERIPHERAL NERVOUS SYSTEM What is the peripheral nervous system? Key Point #3: The peripheral nervous system PNS Nerves of the body Carries messages to the CNS and responses FROM the CNS What do nerve cells (neuron) look like? Key Point #4: A neuron is the functional cell of the nervous system. Dendrites Neurons carry information through the nervous system in a form called an impulse. Axons Cell Body Schwann Cell Nucleus Myelin Sheath What do nerve cells (neuron) look like? 1. The dendrites receive messages 2. The cell body processes the information 3. The axon passes the message on to the next neuron https://www.youtube.com/watch?v=8SfOOsPwwsA How are messages sent? Key Point #5: Sensory neuron → interneuron →Motor Neuron Sensory neurons: sense information from the environment carry info to the brain Interneurons (CNS): processes information and makes the decisions Motor neurons: take response to the muscles Another Example: I see Drew Brees (sensory neurons) I perceive that it is him, and I realize I am excited and want to say hi! (interneuron) The interneuron sends the message to my arm muscles to wave and my mouth muscles to say hi! (motor neuron) You try: Describe the role of each neuron in a process you have done since entering the classroom Work Time Directions: Using your notes, complete the nervous system assignment. What is not finished in class, is homework! Use your time efficiently. You have a quiz today! Time: 15 minutes Noise: 1 (with partner) Example Damage to his cerebrum! Practice Time Peripheral Nervous System (P) or Central Nervous System (C) Includes the brain and the spinal cord Central Nervous System Peripheral Nervous System (P) or Central Nervous System (C) The nerves in your fingertips are included in this system Peripheral nervous system Peripheral Nervous System (P) or Central Nervous System (C) Interneurons are included in this system Central Nervous System Peripheral Nervous System (P) or Central Nervous System (C) Both sensory and motor neurons are included in this system Peripheral nervous system A. Cerebrum B. Cerebellum C. Brain Stem This part of your brain controls your breathing and heart rate Brain Stem A. Cerebrum B. Cerebellum C. Brain Stem This part of your brain allows you to walk out the door when class is over Cerebrum A. Cerebrum B. Cerebellum C. Brain Stem Quiz #13 Directions: Silently and independently complete the quiz. Turn your quiz into the basket when you are finished. Time: 12 minutes Noise: 0 (SILENT) 1. Write down one concept from today that has stuck with you. 2. Write down one question you have about diseases or homeostasis. 3. Place your sticky note on the back door as you leave. Have a great weekend! Public Health Project Work Time Directions: using the rubric as a guide, decide your topic for the public health project and being the creative educational process! I will show you two examples! Time: 12 minutes Noise: 0 0r 1 (if working with a partner) Exit Ticket #12 Name: ________ Date: 4/22 Period: 2 Score: ______/4 1. Name the two parts to the CNS. 2. What controls heart and breath rate? 3. what type of neuron senses information from the brain? 4. True or false, the cerebellum controls activities such as language and memory. Exit Ticket #12 Name: ________ Date: 4/22 Period: 2 Score: ______/4 1. Name the two parts to the CNS. Brain the spinal cord 2. What controls heart and breath rate? Brain stem 3. what type of neuron senses information from the brain? Sensory neuron 4. True or false, the cerebellum controls activities such as language and memory. false