Answer:
The best answer to your question: Which type of neuroglia would play a role in controlling glutamate levels in the chemical environment, would be: Astrocytes.
Explanation:
From among the neuroglia, or support cells in the brain, whose purpose is to aid neurons in their different functions, astrocytes are not just one of the most numerous, but also one of the most vital for neuronal support. Amongst one of their most central functions is to help in the control of neurotransmitter emition and retention in the synaptic cleft, between two communicating neurons, and therefore, helps regulate the responses from post-synaptic, and pre-synaptic neurons. It is also responsible for clearing up the presence of ions in the extracellular space, and producing ATP, which regulates the amount of neurotransmitters that are released, and taken, by pre-synaptic, and post-synaptic neurons.
In ALS (Amyotrophic Lateral Sclerosis) the issue with glutamate, a neurotransmitter that excites post-synaptic neurons into releasing excess amounts of calcium, is that this hyper-excitatory response leads neurons, particularly motor neurons, to die, and this is what causes ALS. It has been found through research that astrocytes have to do in this process, but it is not clear yet whether there is a failure in their control system, as ALS is still a condition that is very much under study and still without a cure.
It’s not the “light” it’s the rays it burns through the first layer of skin causing other reactions leading to skin cancer
Answer:
The answer is A: Asess and control environmental hazards.
Explanation:
Industrial hygienists are responsible for identifying, assessing and controlling environmental hazards. Among the different environmental risks that could be found are the following: chemical, physical, biological, among others. The environmental engineer must also know how these factors can interact with others that may affect the health and welfare of workers.
Since, the options have not been given the question is incomplete. The complete question is as follows:
Indicate which syllable receives emphasis when pronounced. optometry
a. op
b. tom
c. e
d. try
Answer: b. tom
Explanation:
A syllable can be defined as the unit of pronunciation, that have one vowel sound, that is with or without surrounding consonants. It may have a whole or part of the word.
In the given word, optometry, tom is the syllable and it receives the emphasis when pronounced because of the presence of vowel "o" increasing the weight-age over the consonants t and m on pronunciation.
