×
Create a new article
Write your page title here:
We currently have 3,185 articles on s23. Type your article name above or create one of the articles listed here!



    s23
    3,185Articles

    Human Nervous System

    Human nervous system:

    A) Central nervous system (CNS)– consists of the brain and the spinal cord


    B) Peripheral nervous system (PNS) – composed of nerves which connect the CNS to the other parts of the body.

    1. Somatic system (skeletal) – nerves (motor and sensory) that control the muscular system and the external sensory receptors
    2. Autonomic system - autonomic motor neurons that control the internal organs (such as heart, arteries, gastrointestinal tract, glands..)
      Sympathetic system - responds to stressful stimulation – prepares the body for fight or flight response
      Parasympathetic system – involved in relaxation and has an energy conserving function
    Cookies help us deliver our services. By using our services, you agree to our use of cookies.