Chemoreceptor trigger zone (CTZ) in the medulla of the brainstem, which communicates with the vomiting center (to mediate the vomiting reflex).
Vomiting reflex is mediated by the vomiting center in the brainstem, specifically the area postrema. This area receives input from various parts of the body, including the gastrointestinal tract and higher brain centers, to initiate the coordinated response of vomiting.
The cerebral cortex can not over ride reflexes. Reflex are mediated at the level of the spinal cord.
Yes. You are right. Most probably nausea is mediated through autonomic nervous system.
Yes, the vagus nerve plays a role in controlling the process of vomiting. It sends signals to the brain to trigger the reflex response of vomiting when necessary.
While pupillary size in principle is controlled both by the sympathetic and the parasympathic nervous system, the typical closure of the pupil after illumination (i.e. the pupillary light reflex) is mediated by the parasympathetic innervation of the constrictor muscle of the pupil.
Vomiting reflex is mediated by the vomiting center in the brainstem, specifically the area postrema. This area receives input from various parts of the body, including the gastrointestinal tract and higher brain centers, to initiate the coordinated response of vomiting.
The cerebral cortex can not over ride reflexes. Reflex are mediated at the level of the spinal cord.
yes
No. Drugs that treat nausea and vomiting will diminish this reflex, though.
Botulism causes no gag reflex and decreased eye movement and nausea and vomiting.
The corneal reflex may be elicited by lightly touching the cornea with a wisp of cotton; this sensory stimulus is transmitted by the first branch of the trigeminal nerve to the brainstem. There, thanks to connections of the trigeminal nerve with the facial (motor) nerve, a motor response occurs leading to contraction of the orbicularis oculi. The result is blinking or closing the eye on the same side. Thus this reflex is a brainstem and not a cord-mediated reflex.
Yes. You are right. Most probably nausea is mediated through autonomic nervous system.
Vomiting is a natural reflex triggered by the ingestion of toxins. This reflex is an important one to ensure that recognized toxins are expelled from the body.
Yes, the vagus nerve plays a role in controlling the process of vomiting. It sends signals to the brain to trigger the reflex response of vomiting when necessary.
Vomiting is complex act. CNS coordination is required for vomiting. The vomiting reflex is co-ordinate d in the vomiting center found in the medulla Oblangata which is a part of the CNS present at the base of the brain. The stimulus of vomiting like Dopamine, Serotonin are produced in different organs of the body. The vomiting center receives information from various parts of the body through stimulus and get stimulated.
While pupillary size in principle is controlled both by the sympathetic and the parasympathic nervous system, the typical closure of the pupil after illumination (i.e. the pupillary light reflex) is mediated by the parasympathetic innervation of the constrictor muscle of the pupil.
No, a heartbeat is not a reflex. It is a coordinated and involuntary contraction of the heart muscle controlled by the heart's own electrical system, known as the cardiac conduction system. Reflexes are typically involuntary responses to stimuli mediated by the nervous system.