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Core - Anatomy and Physiology

    Chapter 19

    The Autonomic Nervous System

    19.1 : Autonomic Nervous System01:22

    19.1 : Autonomic Nervous System

    The autonomic nervous system (ANS) is a critical component of the peripheral nervous system, primarily responsible for regulating involuntary bodily ...

    8.4K views
    19.2 : Sympathetic Division of the ANS01:19

    19.2 : Sympathetic Division of the ANS

    The sympathetic division of the ANS prepares the body for stress, physical activity, and increased energy demands. Its preganglionic fibers originate in ...

    1.7K views
    19.3 : Sympathetic Pathways: Sympathetic Chain Ganglia01:21

    19.3 : Sympathetic Pathways: Sympathetic Chain Ganglia

    The sympathetic chain ganglia, also known as the sympathetic trunk ganglia or paravertebral ganglia, are a series of ganglia located bilaterally on either ...

    2.2K views
    19.4 : Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla01:28

    19.4 : Sympathetic Pathways: Collateral Ganglia and Adrenal Medulla

    The collateral ganglia are the synapse sites between the preganglionic and postganglionic fibers that innervate the abdominal and pelvic region organs. ...

    1.2K views
    19.5 : Sympathetic Signaling01:32

    19.5 : Sympathetic Signaling

    Sympathetic signaling activates the sympathetic nervous system through the interactions between neurotransmitters and their receptors on target ...

    890 views
    19.6 : Sympathetic Activation01:17

    19.6 : Sympathetic Activation

    The sympathetic nervous system triggers numerous physiological changes to prepare the body for the fight-or-flight response. During rigorous physical ...

    5.1K views
    19.7 : Parasympathetic Division of the ANS01:08

    19.7 : Parasympathetic Division of the ANS

    The parasympathetic division of the ANS operates during non-stressful situations, allowing for relaxation and energy conservation. It promotes digestion, ...

    2.0K views
    19.8 : Cranial Part of Parasympathetic Division01:18

    19.8 : Cranial Part of Parasympathetic Division

    The cranial part of the ANS parasympathetic division consists of preganglionic fibers that originate in the brainstem and innervate various structures in ...

    1.1K views
    19.9 : Parasympathetic Signaling01:30

    19.9 : Parasympathetic Signaling

    Parasympathetic signaling relays information from the nervous system to target organs, promoting rest, digestion, and relaxation responses. This pathway ...

    1.8K views
    19.10 : Disorders of the Autonomic Nervous System01:18

    19.10 : Disorders of the Autonomic Nervous System

    Abnormal regulation of smooth muscle function is a characteristic of many autonomic nervous system disorders. The most severe of these disorders include ...

    573 views
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