Skip to main content
Back

Chapter 11

Control buttons has been changed to "navigation" mode.
1/38

  • What does the nervous system control?

    Movement, consciousness, memory, learning, personality, and homeostasis.

  • What are the two main parts of the nervous system

    central nervous system (cns) and the peripheral nervous system (pns)

  • what does the central nervous system do overall

    processes and responds to information,

  • What is the PNS?

    All nerves outside the brain and spinal cord.

  • What does the motor nervous system do?

    Sends signals from the brain and spinal cord to muscles and organs.

  • What are the two divisions of the motor nervous system?

    Somatic motor system and autonomic (visceral) motor system.

  • what does the somatic motor system control?

    Skeletal muscles (voluntary movement).

  • What does the autonomic nervous system control?

    Organs, glands, smooth muscle, and cardiac muscle.

  • What are the two divisions of the autonomic nervous system?

    Sympathetic and parasympathetic systems.

  • What are neurons?

    Cells that send and receive signals in the nervous system.

  • What do neuroglial cells do?

    Support and help neurons function.

  • What is a nerve?

    A bundle of axons from many neurons.

  • What are receptors?

    Cells or organs that detect stimuli.

  • What are the three main parts of a neuron?

    Soma, dendrites, and axon.

  • What is the soma?

    The cell body of a neuron.

  • What do dendrites do?

    Receive signals and carry them toward the cell body.

  • What does the axon do?

    Sends signals away from the cell body.

  • What makes up the CNS?

    brain and spinal cord

  • What is the function of the brain?

    Controls body functions and processes information.

  • What is the function of the spinal cord?

    Communicates with the body and controls reflexes.

  • What is a nerve?

    bundle of axons

  • What are cranial nerves? and spinal nerves

    Nerves that come from the brain (12 pairs).

    Nerves connected to the spinal cord (31 pairs).

  • What are the two sensory divisions?

    Visceral and somatic.

  • What does the visceral sensory system detect?

    signals from organs

  • : What does the somatic sensory system detect?

    .

    Signals from skin, muscles, bones, and joints

  • What does the motor nervous system do?

    Sends commands from the CNS to the body.

  • What are the two motor divisions?

    Somatic motor and autonomic (visceral) motor.

  • What does the somatic motor system control?

    Skeletal muscles.

  • What does the autonomic nervous system control?

    Organs, glands, smooth muscle, and cardiac muscle.

  • What are the two autonomic divisions?

    Sympathetic and parasympathetic.

  • What are neurons?

    cells that send signals

  • What are neuroglial cells?

    Support cells for neurons.

  • What are receptors?

    Cells/organs that detect stimuli.

  • What is the soma?

    The cell body.

  • What are dendrites?

    Receive signals and carry them toward the soma.

  • What is an axon?

    Sends signals away from the soma.

  • What is the axon hillock?

    Where the axon begins.

  • What are axon collaterals?

    Branches of the axon.