Search results
Results from the WOW.Com Content Network
Carbon dioxide (CO 2) is a natural product of metabolism.People typically exhale around 200mL of CO 2 per minute at rest and over 4.0 L at peak exercise levels. [13] In a closed environment, CO 2 levels can quickly rise and can be expected to a certain degree in an environment such as the International Space Station (ISS).
Acetazolamide is a first generation carbonic anhydrase inhibitor and it decreases the ocular fluid and osmolality in the eye to decrease intraocular pressure. [ 5 ][ 6 ] Common side effects include numbness, ringing in the ears, loss of appetite, vomiting, and sleepiness. [ 2 ]
Carbon monoxide poisoningtypically occurs from breathingin carbon monoxide(CO) at excessive levels.[3] Symptoms are often described as "flu-like" and commonly include headache, dizziness, weakness, vomiting, chest pain, and confusion.[1] Large exposures can result in loss of consciousness, arrhythmias, seizures, or death.
Central chemoreceptors. Central chemoreceptors of the central nervous system, located on the ventrolateral medullary surface in the vicinity of the exit of the 9th and 10th cranial nerves, are sensitive to the pH of their environment. These act to detect the changes in pH of nearby cerebrospinal fluid (CSF) that are indicative of altered oxygen ...
However drawbacks to this exist as well. Once the drug is in the brain there is a point where it needs to be degraded to prevent overdose to the brain tissue. Also if the drug cannot pass back through the blood–brain barrier, it compounds the issues of dosage and intense monitoring would be required. For this to be effective there must be a ...
If the part of the nerve between the eye and the chiasm is compressed, the result is vision loss in one eye. If the part after the chiasm is affected, visual loss on one side of the visual field occurs. [2] Adjacent to the pituitary lies a part of the skull base known as the cavernous sinus. This contains a number of nerves that control the eye ...
The chemoreceptor trigger zone (CTZ) is an area of the medulla oblongata that receives inputs from blood -borne drugs or hormones, and communicates with other structures in the vomiting center to initiate vomiting. The CTZ is located within the area postrema, which is on the floor of the fourth ventricle and is outside of the blood–brain ...
Drugs that prevent a neurotransmitter from binding to its receptor are called receptor antagonists. For example, drugs used to treat patients with schizophrenia such as haloperidol, chlorpromazine, and clozapine are antagonists at receptors in the brain for dopamine. Other drugs act by binding to a receptor and mimicking the normal ...