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When you hear a sudden loud noise, your nervous system responds immediately, activating the fight-or-flight response. This triggers the sympathetic branch, releasing adrenaline and other stress hormones, which prepare your body for rapid action. Physiological changes occur, such as increased heart rate and heightened alertness, allowing you to react quickly to potential danger. This automatic response is a crucial survival mechanism.
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If you are startled by a sudden loud noise how is the nervous system activated?
When startled by a loud noise, sensory receptors in your ears detect the sound and send signals through the auditory nerve to the brainstem. The brainstem then activates the fight-or-flight response, releasing adrenaline and triggering the sympathetic nervous system to prepare the body for action. This rapid response helps you react quickly to potential danger.
What hormone activated the sympathetic nervous system?
epinephrine and norepinephrine stimulate the sympathetic nervous system
After Jane arrived safely at the ranger station and had a drink of water which nervous system became activated?
the parasympathetic nervous system
When you are scared which nervous system does it triger?
If you are startled, and in the "flight or fight" mode, the sympathetic autonomic nervous system is active, which will cut of digestion, increase heartrate, dilate pupils, etc.
What part of the nervous system would be immediately activated if you were attacked?
parasympathetic
When baroreceptors sense a change in pressure is the autonomic nervous system activated?
YES
Which human body systems are directly involved in reflex actions such as knee jerk blinking and jumping when startled?
The nervous system is directly involved in reflex actions like knee jerk, blinking, and jumping when startled. Specifically, the spinal cord and brainstem are key components in coordinating these rapid automatic responses without conscious involvement from the brain's higher centers.
Which human body system directly involved in reflex actions such as knee jerk blinking and jumping when startled?
nervous and muscular
If your parasympathetic nervous system was activated what might you be doing?
relaxing under a tree
Which system would be activated by the flight-or-flight response?
respiratory system /\ The sympathetic division of the autonomic nervous system. The sympathetic nervous system accelerates functions such as heart rate and breathing.
Which nervous system that is continually activated will cause harmful physical and mental stress?
The lymbic system of the brain can cause these problems.
Which ANS subdivision is involved when you are startled and panicking?
The sympathetic division of the autonomic nervous system is involved when you are startled and panicking. This division is responsible for the "fight or flight" response, which triggers a surge of adrenaline and prepares the body to deal with perceived threats.
