nervous vs hormonal control

• Types of control

  • Nervous
  • Hormonal
• Types of signal

  • Electrical (chemical at synapses)
  • Chemical
• Transmission of signal

  • By nerve cells (neurones)
  • By the bloodstream
• Effectors

  • Muscles or glands
• Type of response

  • Muscle contraction or secretion
  • Chemical change
• Speed of response

  • Very rapid
  • Slower
• Duration of response

  • Short (until nerve impulses stop)
  • Long (until hormone is broken down)
• Nervous control

  • Type of signal: Electrical (chemical at synapses)
  • Transmission of signal: By nerve cells (neurones)
  • Effectors: Muscles or glands
  • Type of response: Muscle contraction or secretion
  • Speed of response: Very rapid
  • Duration of response: Short (until nerve impulses stop)
• Hormonal control

  • Type of signal: Chemical
  • Transmission of signal: By the bloodstream
  • Effectors: Target cells in particular tissues
  • Type of response: Chemical change
  • Speed of response: Slower
  • Duration of response: Long (until hormone is broken down)
• A hormone is a chemical substance produced by a gland and carried in the bloodstream