Reflexes
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_Reflexes are our action that are performed without conscious thought as a response to a stimulus. They are rapid, predictable, involuntary, and unconscious
There are two types of reflexes:
Autonomic Reflexes: Involves the response of an organ, such as the peristaltic contraction of the smooth muscle of the intestines, that is not controlled consciously. They also control digestion, elimination, blodd pressure, and sweating.
Somatic Reflexes: Somatic reflexes involve a response that involves a skeletal muscle contraction in response to a stimuli. Sensory nerves send signals to the central nervous system for processing. If a quick response is needed, the spinal cord will send out a signal, but it is also sent up to the brain for further processing. This 'splitting' of the signal allows the reflex to happen quicker than if the signal were sent only to the brain for processing before a response could be initiated.
Reflex Arcs are the pathways the reflexes follow. The sensory receptors receive stimulus, the sensory neurons bring the message to the central nervous system, the interneurons receive the message and links it to a response, the motor neurons sends the message to muscle, gland, or organ, and the effector responds.
A reflex arc is the nerve pathway involved in a reflex action.
There are two types of reflexes:
Autonomic Reflexes: Involves the response of an organ, such as the peristaltic contraction of the smooth muscle of the intestines, that is not controlled consciously. They also control digestion, elimination, blodd pressure, and sweating.
Somatic Reflexes: Somatic reflexes involve a response that involves a skeletal muscle contraction in response to a stimuli. Sensory nerves send signals to the central nervous system for processing. If a quick response is needed, the spinal cord will send out a signal, but it is also sent up to the brain for further processing. This 'splitting' of the signal allows the reflex to happen quicker than if the signal were sent only to the brain for processing before a response could be initiated.
Reflex Arcs are the pathways the reflexes follow. The sensory receptors receive stimulus, the sensory neurons bring the message to the central nervous system, the interneurons receive the message and links it to a response, the motor neurons sends the message to muscle, gland, or organ, and the effector responds.
A reflex arc is the nerve pathway involved in a reflex action.