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5 Written questions

5 Matching questions

  1. Types of ICF
  2. Tissue
  3. Negative Feedback
  4. Peripheral Nervous System (PNS)
  5. Insulator-Radiator (System)
  1. a The skin and tissues regulate heat loss in {this} system.
  2. b Part of the nervous system that senses and controls information with afferent and efferent neurons.
  3. c Different types of cells with the same intercellular substance; have a specific function.
  4. d A process in which the body senses a change and activates a mechanism that reverses that change; its function is to maintain stable internal environmental conditions; closed loop system.
  5. e Cytoplasm (in cell outside of nucleus); Nucleoplasm (in nucleus).

5 Multiple choice questions

  1. Cold temperature → cold receptor...sensory fibers → primary motor center → bilateral tracts down brain stem → lateral column of spinal cord → anterior motor neuron → skeletal muscles → alternating contraction in muscles (~4 fold increase in heat production)
  2. * These proteins span the entire lipid bilayer
    * May act as ion channels and transporters (e.g. Na⁺, K⁺, Ca²⁺, and Cl⁻) across the membrane
    * Act as receptors for neurotransmitter substances, receptors for nerve growth, and adhesion factors
  3. 18% of heat loss. The direct transfer of body heat through direct contact. 3% lost from body to other objects, 15% heat lost to air. This can occur in either direction depending on the ambient temperature.
  4. Increased metabolic rate (20-30%), more nutrients utilized, more calories consumed.
  5. Receptor; Control Center; Effector

5 True/False questions

  1. Neuroglia60% found in the brain, 1 trillion cells, 100 billion in brain, communicate via action potentials, generate action and electrical potentials.


  2. Hypothalamic Temperature Control (Cold)* Vasodilatation of dermal blood vessels and increased blood flow to the skin (8 fold reduction in heat)
    * Sweat (removes 10 times basal metabolic rate heat)
    * Heat production inhibited


  3. ConvectionOrgan or tissues that receive information (output) from the control center and produces a response.


  4. Central Nervous System (CNS)Part of the nervous system that senses and controls information with afferent and efferent neurons.


  5. Heat CrampsOrgan which is the body's thermostat by monitoring the temperature of the blood and signals it receives from the body's cold - hot receptors. It can respond to temperature changes as small as 0.01 °C. Regulates body core to 98.6 - 99.7 °F.


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