PSYC 2390 Chapter Notes - Chapter 14: Carpal Tunnel, Lamellar Corpuscle, Spinothalamic Tract
11 Apr 2016
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The system that includes the cutaneous senses (senses involving the skin responsible for perceptions such as touch and pain), proprioception (the sense of position of the limb), and kinesthesis (sense of movement of the limbs) The heaviest, largest (the surface areas of the gastrointestinal tract and the alveoli of the lungs exceed the surface of the skin) and most obvious organ in the human body. Skin protects body fluids from escaping and at the same time protects us by keeping bacteria, chemical agents, and dirt from penetrating our bodies. Provides us with information about the various stimuli that comes into contact with it. Within the skin are mechanoreceptors (receptors that respond to mechanical stimulation such as pressure, stretching and vibration) Slowly adapting (sa) receptors respond with prolonged firing to continued pressure. Rapidly adapting (ra) receptors respond with bursts of firing just at the onset and offset of a pressure stimulus.
