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5 Written questions

5 Matching questions

  1. Sarcomere
  2. Endotherm
  3. Cephalization
  4. Incomplete Proteins
  5. Sarcoplasmic Reticulum
  1. a The fundamental, repeating unit of striated muscle, delimited by the Z lines
  2. b 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.
  3. c An evolutionary trend toward the concentration of sensory equipment at the anterior end of the body.
  4. d ...
  5. e A specialized endoplasmic reticulum that regulates the calcium concentration in the cytosol of muscle cells

5 Multiple choice questions

  1. An efferent branch of the vertebrate peripheral nervous system that regulates the internal environment; consists of the sympathetic, parasympathetic, and enteric divisions.
  2. The sensory and motor neurons that connect to the central nervous system
  3. Sheets of tightly packed cells that line organs and body cavities as well as external surfaces
  4. In a neuron, a shift in the membrane potential that has an amplitude proportional to signal strength and that decays as it spreads.
  5. .Muscle in which the regular arrangement of filaments creates a pattern of light and dark bands

5 True/False questions

  1. Neurotransmitter (NT)Gap in the myelin sheath of certain axons where an action potential may be generated. In saltatory conduction, an action potential is regenerated at each node, appearing to "jump" along the axon from node to node


  2. SynapseThe junction where a neuron communicates with another neuron or other cell across a narrow gap via a neurotransmitter(chemical) or an electrical coupling.


  3. Actin...


  4. Temporal SummationA phenomenon of neural integration in which the membrane potential of the post-synaptic cell in a chemical synapse is determined by the combined effect of EPSPs or IPSPs produced in rapid succesion


  5. HyperpolarizationA change in a cell's membrane potential such that the inside of the membrane becomes more negative relative to the outside. Hyperpolarization reduces the chance that a neuron will transmit a nerve impulse.