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5 Written questions

5 Matching questions

  1. Hypothalamus
  2. Sarcomere
  3. Ectotherm
  4. Striated
  5. IPSP (Inhibitory post-synaptic potential)
  1. a An organism for which external sources provide most of the heat for temperature regulation.
  2. b The ventral part of the vertebrate forebrain; functions in maintaining homeostasis, especially in coordinating the endocrine and nervous systems; secretes hormones of the posterior pituitary and releasing factors that regulate the anterior pituitary
  3. c 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
  4. d .Muscle in which the regular arrangement of filaments creates a pattern of light and dark bands
  5. e The fundamental, repeating unit of striated muscle, delimited by the Z lines

5 Multiple choice questions

  1. ...
  2. A gated channel for a specific ion. The opening or closing of such a channels may alter a cell's membrane potential.
  3. ...
  4. The potential that an excitable cell membrane must reach for an action potential to be initiated
  5. The fluid filling the spaces between cells in most animals

5 True/False questions

  1. EPSP (Exitatory post-synaptic potential)An electrical change (depolarization) in the membrane of a post-synaptic cell caused by the binding of an excitatory neurotransmitter from a presynaptic cell to a post-synaptic cell; makes it more likely for a post-synaptic cell to generate an action potential.


  2. Epithelial TissueAnimal tissue that functions mainly to bind and support other tissues, having a sparse population of cells scattered through an extracellular matrix


  3. CephalizationA change in a cell's membrane potential such that the inside of the membrane is made less negative relative to the outside. For example, a neuron membrane is depolarized if a stimulus decreases its voltage from the resting potential of -70 mV in the direction of zero voltage.


  4. Temporal SummationA phenomenon of neural integration in which the membrane potential of the post-synaptic cell is determined by the combined effect of EPSPs or IPSPs produced nearly simultaneously by different synapses.


  5. Motor DivisionOne of the three divisions of the autonomic nervous system; consists of networks of neurons in the digestive tract, pancreas, and gall bladder; normally regulated by the sympathetic and parasympathetic divisions of the autonomic nervous system. (secretions + peristalsis can function independently from parasympathetic and sympathetic but can also be affected by it)


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