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Bell Work

Bell Work. What are the five senses? What is the endocrine system?. Bellwork Activator Standard (SAP3a.) Key Question Interactives. Agenda. Game. http://www.purposegames.com/game/endocrine-system-glands-quiz. Standard.

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Bell Work

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  1. Bell Work • What are the five senses? • What is the endocrine system?

  2. Bellwork Activator Standard (SAP3a.) Key Question Interactives Agenda

  3. Game • http://www.purposegames.com/game/endocrine-system-glands-quiz

  4. Standard • SAP3- Students will assess the integration and coordination of body functions and their dependence on the endocrine and nervous systems to regulate physiological activities • A. Interpret interactions among hormones, senses, and nerves which make possible the coordination of functions of the body.

  5. KQ: How does the endocrine system maintain homeostasis and control various body processes?

  6. adren-adrenal glands andr/o-male calc/i-calcium dips/o-thirst estr/o-female gluc/o-sugar pancreat/o-pancreas Prefixes/Suffixes

  7. Prefixes/ Suffixes (continued) • thym/o-thymus gland • thyr/o-thyroid gland • toxic/o-poison • (prefix) exo:outside, outward • (suffix) physics: growth • (suffix) megaly: enlargement • suffix) ole: little • (suffix) trophy:nurishment, development

  8. Vocabulary (Endocrine System) • Hormones : chemicals that are produced by endocrine glands • Gland : a group of cells that makes special chemicals for your body; they make hormones • Thyroid: controls how fast the body uses its energy • Adrenal gland : helps us respond to danger; fight or flight; makes epinephrine (adrenalin) • Testes : male reproductive hormone

  9. Vocabulary (Continued) • Pancreas : makes insulin to help cells take in glucose; controls blood sugar levels • Parathyroid : controls levels of vitamins and minerals in the body; controls calcium levels in blood • Pituitary : the gland that helps control all the other glands • Feedback system : turn endocrine glands ON and OFF; sends hormones where needed

  10. Interactive http://www.interactivephysiology.com/login/endodemo/systems/buildframes.html?endocrine/endorev/01

  11. Video • http://www.dnatube.com/video/1113/The-Endocrine-System-How-it-Functions

  12. Nervous/Sensory System

  13. Sensory/Nervous system • Sensory System: Is part of the nervous system responsible for processing information. A sensory system consists of receptors, neural pathways, and parts of the brain involved in sensory perception. • Nervous System: Controls and coordinates functions throughout the body and responds to internal and external stimuli

  14. Sensory System • Regions of the brain that control the senses • (Visual Cortex) Vision • (Auditory Cortex) Hearing • (Somatic Cortex) Touch • (Gustatory Cortex) Taste • (Olfactory Cortex) Smell • (Vestibular Cortex) Balance In short, senses are transducers from the physical world to the the realm of the mind.

  15. External and Internal Stimuli • External: A stimulus that comes from external factors (Ex: your cold so you put on a jacket to warm up). • Internal: A stimulus that comes from internal factors( Ex: your body feels threatened so it sends out adrenalin to all the muscles to deal with the threat)

  16. Parts of the Brain • Brain Stem: connects brain to the spinal chord; controls information going in and out of the brain; controls involuntary actions • Thalamus: receives messages from sensory receptors and relays to proper part of cerebrum • Hypothalamus: control center for recognition of hunger and thirst; coordinates nervous and endocrine systems • Autonomic Nervous System: part of motor division; regulates involuntary activities • Cerebrum: largest part of the brain; responsible for voluntary and educated actions; divided into frontal, parietal, occipital, and temporal lobes • Cerebellum: Second largest part of the brain; located at the back of the skull; coordinates balance and movement

  17. Vocabulary • Nervous Tissue: transmits nerve impulses throughout the body • Feedback Inhibition: negative feedback; process by which a stimulus produces a response that opposes the original stimulus • Neurons: cells that transmit impulses • Dendrites: short branched extensions that carry impulses towards the cell body • Axon: long fiber that carries impulses away from the cell body • Myelin Sheath: insulating membrane around axon; creates nodes; keeps impulses moving along the axon more efficiently

  18. Vocabulary (Continued) • Neurotransmitters: contained in sacs in axon terminals; released to cause stimulus in the next cell; chemicals • Central Nervous System: relays messages, processes information; and analyzes information • Meninges: connective tissue wrapping the brain and spinal chord • Cerebrospinal fluid: bathes brain and spinal chord in fluid; acts as a shock absorber; allows for exchange of nutrients and waste between blood and nervous tissue • Resting potential: electrical charge acrossthe cell membrane of a neuron • Threshold: minimum: level of stimulus needed to activate a neuron

  19. How do both of these systems work together? • The nervous system sends electrical messages to control and coordinate the body. The endocrine system has a similar job, but uses chemicals (hormones) to “communicate”. • The

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