KINE 2031 Lecture Notes - Superior Cerebellar Peduncle, Central Nervous System, Straight Sinus
13 Oct 2013
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Document Summary
Sensory detects changes in environment, located throughout the body. Receptors capable of detecting both external and internal changes. Integration nervous system processes sensory input and decides if a response is required. Motor output nervous system sends down motor message to respond to stimulus (only if integration decides a response is needed) Central nervous system (cns): consist of brain and spinal cord, encased in bone as a form of protection of delicate organ system. Peripheral nervous system (pns): located outside of cns functional division as follows: sensory (afferent): responsible for receiving information from receptors and transmitting to the cns. Sensory somatic (body): eg. touch, pain and pressure. Visceral (organs): blood vessels, digestive organs, respiratory organs. Most of the time does not reach conscious levels, unless sensation is extreme (eg. stomach being stretched: motor (efferent): responsible for transmitting motor impulses from cns to muscles/glands. Somatic (body): eg. conscious contraction of striated/skeletal muscles.
