Practical Nursing PNM300 Lecture Notes - Lecture 4: Chemical Warfare, Solifenacin, Drug Allergy
26 Feb 2018
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Central nervous system (cns: made up of brain and spinal cord. Receives signals from sensory receptors (vision, pressure, pain, cold, warmth, touch, smell) Recognizes changes in the internal and external environment. React to environment by producing an action or response. Somatic nervous system voluntary control of skeletal muscle contractions. Autonomic nervous system (ans) regulates involuntary control over the contraction of smooth muscle, cardiac muscle and secretion of glands. Heart rate, blood pressure, temperature control, light regulation of eyes. The sympathetic nervous system in relationship to the entire nervous system: organization of the ans from: http://users. rcn. com/jkimball. ma. ultranet/b iologypages/p/pns. html. Definitions to understand: neurons segments that make up each nerve of the central and peripheral nervous systems. Synaptic transmission allow information to communicated between two nerves or from nerves to muscles or glands: neurotransmitters chemical substances that cause transmission of nerve signals or impulses. For the neuron: hold out your arm and spread your fingers.
