Voluntary or involuntary???

Voluntary and Involuntary Responses

The responses of the nervous system to stimuli may be voluntary or involuntary. 

• Voluntary responses are mainly under conscious control, but some voluntary movements, such as walking, require less conscious attention. 

• There are two types of involuntary response, autonomic and reflex. 

• Autonomic responses regulate the body’s internal environment: hearbeat, intestine movements,...

• Reflexes mainly affect those muscles that are normally under voluntary control: blinking, sneezing,...      A reflex is an involuntary response to a stimulus, such as withdrawing your hand from a hot surface before you become aware of the heat. Most reflexes are processed in the spine, although some, such as blinking, are processed in the brain. In a spinal reflex, the stimulus signal travels along a sensory nerve to the spinal cord, and a response signal travels back by means of a motor nerve.
• Information obtained from:

http://www.aviva.co.uk/health-insurance/home-of-health/medical-centre/medical-encyclopedia/entry/function-voluntary-and-involuntary-responses/