The membrane that supplies most of the blood to the brain is the _____.Group of answer choiceschoroid plexuspia materarachnoid meninxdura mater
Question
The membrane that supplies most of the blood to the brain is the _____.
Group of answer choices
- choroid plexus
- pia mater
- arachnoid meninx
- dura mater
Solution
The membrane that supplies most of the blood to the brain is the pia mater.
Explanation
The pia mater is the innermost layer of the meninges, which are the protective membranes surrounding the brain and spinal cord. It adheres closely to the surface of the brain and is richly supplied with blood vessels, providing essential nutrients and oxygen to the brain tissue. The choroid plexus is involved in producing cerebrospinal fluid, while the arachnoid membrane and dura mater serve as protective layers but are not primarily associated with blood supply. Thus, the correct choice here is pia mater.
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