How do parasympathetic neurons in the medulla respond to increased blood pressure? O Cardiac output is increased. Heart rate is increased. O Vasoconstriction is promoted. O Sympathetic activity is inhibited.

How do parasympathetic neurons in the medulla respond to increased blood pressure? O Cardiac output is increased. Heart rate is increased. O Vasoconstriction is promoted. O Sympathetic activity is inhibited.

Body Structures & Functions Updated

13th Edition

ISBN:9780357191606

Author:Scott

Publisher:Scott

Chapter9: Peripheral And Autonomic Nervous System

Section: Chapter Questions

Problem 7RQ

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Concept explainers

Anatomy and Physiology of Special Sensory Organs

Sensory organs can be labeled as special sensory structures that permit sight, hearing, odor, and flavor. Sensory structures permitting proprioception, touch, thermal, and pain perception can be classified as more advanced sensory organs. The sensory neurons are trained to find out modifications in the external and internal conditions so that a person's body can react to that change. A stimulus is the first signal that is recognized by any sensory receptor of the body. Stimulus is an impulse generated when there is a change in the surroundings of a person. For example, a heated environment will alert the brain through the thermal sensory organs and generate a reflex accordingly.

Sensory Receptors

The human sensory system is one of the most complex and highly evolved structures, which processes a myriad of incoming messages. This well-coordinated system helps an organism or individual to respond to external stimuli, appropriately. The sensory receptors are an important part of the sensory system. These receptors are specialized epidermal cells that respond to external environmental stimuli. These receptors consist of structural and support cells that form the peripheral unit of the receptor and the neural dendrites which receive and detect the external stimuli.

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How do parasympathetic neurons in the medulla respond to increased blood pressure?
O Cardiac output is increased.
Heart rate is increased.
O Vasoconstriction is promoted.
O Sympathetic activity is inhibited.

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