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The vomiting reflex is mediated by the?
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.
Where is the emetic center located?
The emetic center is located in the brainstem, specifically in the medulla oblongata. It is responsible for triggering the physiological response of vomiting when it receives signals from various sources such as the gastrointestinal tract, vestibular system, or chemoreceptor trigger zone in the brain.
What is chemoreceptor trigger zone?
The chemoreceptor trigger zone is a bilateral set of centers in the brainstem lying under the floor of the fourth ventricle.CTZ has connection with vomiting center and play indirectly to stimulate vomiting.. Electrical stimulation of these centers does not induce vomiting, but application of emetic drugs does - if and only if the vomition centers are intact. The chemoreceptor trigger zones function as emetic chemoreceptors for the vomition centers - chemical abnormalities in the body (e.g. emetic drugs, uremia, hypoxia and diabetic ketoacidosis) are sensed by these centers, which then send excitatory signs to the vomition centers. Many of the antiemetic drugs act at the level of the chemoreceptor trigger zone.
Vomiting reflex is mediated by the?
Chemoreceptor trigger zone (CTZ) in the medulla of the brainstem, which communicates with the vomiting center (to mediate the vomiting reflex).
What is the site of action in the brain where antipsychotics work?
Thes are the sites of action in the brain where antipsychotics work. The Basal ganglia, areas of the limbic system, the chemoreceptor trigger zone ,and the cerebral cortex
What part of the brain initiates the resumption of breathing when someone holds their breath?
The brainstem, particularly the medulla oblongata, controls the involuntary breathing process. When someone holds their breath, increasing levels of carbon dioxide trigger the brainstem to resume breathing by sending signals to the respiratory muscles.
Where can one find more information about Trigger Point?
More information can be found about Trigger Point in many places, especially the internet. For example, encyclopedia websites, or the official Trigger Point website, would both contain lots of additional information.
What is a trigger circuit more commonly called?
Trigger circuits are now commonly called flip-flops. I linked a page with more information.
Where can one find information about mortgage trigger leads?
You can find out more information about mortgage trigger leads online at the Brokers Data website. You can also contact your local bank or credit union and inquire there.
What is the chemo-emetic trigger zone?
The chemo-emetic trigger zone, also known as the chemoreceptor trigger zone (CTZ), is a region in the brain, specifically located in the area postrema of the medulla oblongata. It plays a critical role in the vomiting reflex by detecting toxins, drugs, and other emetic substances in the bloodstream or cerebrospinal fluid. When activated, it sends signals to the vomiting center in the brain to initiate the process of vomiting, helping to protect the body from harmful substances. The CTZ is not protected by the blood-brain barrier, allowing it to respond quickly to circulating chemicals.
What protein receives chemical messages for the cell?
The protein that receives chemical messages for the cell is usually a receptor protein. These proteins are located on the cell membrane and can bind to specific signaling molecules, such as hormones or neurotransmitters, to trigger a cellular response.
What internal stimuli causes vomiting?
Internal stimuli that can trigger vomiting include the presence of toxins or irritants in the gastrointestinal tract, which activate the chemoreceptor trigger zone in the brain. Additionally, conditions such as severe pain, vestibular disorders (affecting balance), and certain hormonal changes can also stimulate the vomiting center in the brain. Other factors include infections, gastrointestinal obstructions, and motion sickness. These stimuli lead to the complex physiological response that results in vomiting.
