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.
Answer:
The correct option is: b. trabeculae
Explanation:
Trabeculae are the tiny rod-like elements of the bone tissues that are responsible for supporting the framework of the various organs or parts of the body. It is generally made up of dense collagenous tissue and can also be composed of muscles and bones.
<u>The cancellous bone, also known as the spongy bone, is produced by the groupings of trabeculated bone tissues</u>.
Answer:
The layers of the epidermis depending on the region of the skin will be composed of the following layers from the outermost to the innermost:
- cornea layer (outermost layer)
- translucent layer
- granular layer
- spiny layer
- basal layer (innermost layer, contains melanocytes)
Answer:
It consists of the Office of the Commissioner and four directorates overseeing the core functions of the agency: Medical Products and Tobacco, Foods and Veterinary Medicine, Global Regulatory Operations and Policy, and Operations
