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5 Written questions

5 Matching questions

  1. IPSP (Inhibitory post-synaptic potential)
  2. Endotherm
  3. Myofibrils
  4. Troponin
  5. Interstitial Fluid
  1. a A longitudinal bundle in a muscle cell (fiber) that contains thin filaments of actin and regulatory proteins and thick filaments of myosin
  2. b An electrical change (usually hyperpolarization) in the membrane of a post-synaptic neuron caused by the binding of an inhibitory neurotransmitter from a presynaptic cell to a post synaptic receptor; makes it more difficult for a post-synaptic neuron to generate an action potential
  3. c The fluid filling the spaces between cells in most animals
  4. d An organism that is warmed by heat generated by their own metabolism, Heat usually maintains a relatively stable body temperature higher than that of the external environment.
  5. e The regulatory protein that control the position of tropomyosin on the thin filament.

5 Multiple choice questions

  1. An extension of the hypothalamus composed of nervous tissue that secretes oxytocin and antidiuretic hormone made in the hypothalamus, temporary storage site for these hormones.
  2. In a neuron, a shift in the membrane potential that has an amplitude proportional to signal strength and that decays as it spreads.
  3. ?
  4. The total amount of energy an animal uses in a unit of time.
  5. An integrated group of cells with a common structure, function or both

5 True/False questions

  1. Myelinated SheathWrapped around the axon of a neuron, an insulating coat of cell membranes from Schwann cells or oligodendrocytes. It is interrupted by nodes of Ranvier, where action potentials are generated


  2. Basal Metabolic Rate (BMR)The metabolic rate of a resting, fasting and non stressed endotherm at a comfortable temperature.


  3. CephalizationAn evolutionary trend toward the concentration of sensory equipment at the anterior end of the body.


  4. Refractory PeriodAn organism for which external sources provide most of the heat for temperature regulation.


  5. ThresholdThe potential that an excitable cell membrane must reach for an action potential to be initiated


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