Answer: Option A "Choroid plexus".
Explanation:
Cerebrospinal fluid can be defined as the fluid that is found in the brain and spinal cord of human beings. It is a clear and colorless fluid.
The production of cerebrospinal fluid takes place by the specialized ependymal cells that lies in the choroid plexuses which is present in the ventricles of brain.
The amount of cerebrospinal fluid in a day is 500mL. This fluid acts as cushion that protects the brain from mechanical and immunological protection.
Hence, the correction answer is option A
D, think of it like a house.
<span>A river delta forms by the deposition of sediments from the river when it slows to join a larger body of water.</span>
Of the four avenues of poisoning, generally, injection is the most worrisome in terms of treatment to the EMS provider. Emergency care for patient who has been poisoned may include a range of actions from reassuring an anxious parent to instituting CPR. The most important treatment for poisoning is diluting and/or physically removing the poisonous agent. How you do this depends on how the poison gets into the patient's body in the first place.
