AUTONOMIC_NS - AUTONOMIC NERVOUS SYSTEM (ANS) AUTONOMIC...

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AUTONOMIC NERVOUS SYSTEM (ANS)
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AUTONOMIC NERVOUS SYSTEM Also called visceral motor system Part of peripheral nervous system (PNS) Involuntary Regulates activities of smooth muscle, cardiac muscle, & certain glands
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ANS REGULATION Regulated mainly by centers in hypothalamus
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AUTONOMIC NERVOUS SYSTEM Regulates unconscious processes that maintain homeostasis e.g. blood pressure (BP), body temperature, respiratory airflow Acts automatically by using biofeedback techniques
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ANS COMPONENTS 1. Autonomic sensory neurons - associate with interocepters in the CNS 2. Integrating centers in the CNS 3. Autonomic motor neurons - regulate visceral activities
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VISCERAL REFLEXES Unconscious, automatic responses to stimulation of glands, cardiac or smooth muscle Receptors detect internal stimuli (changes) e.g. stretch, blood chemicals, body temperature Afferent neurons connect to interneurons in the CNS Efferent neurons carry motor signals to the effectors
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AUTONOMIC_NS - AUTONOMIC NERVOUS SYSTEM (ANS) AUTONOMIC...

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